From 10a1db2ce11fb9271ebd000696a2688c0af3a37e Mon Sep 17 00:00:00 2001
From: Mikhail Golubev <mikhail.golubev@jetbrains.com>
Date: Thu, 6 Aug 2015 16:08:39 +0300
Subject: [PATCH] PY-9795 First attempt to run output of Napoleon through
 rest_formatter.py to render docstring

---
 python/helpers/google_formatter.py            |  19 +
 python/helpers/rest_formatter.py              |  45 +-
 python/helpers/six.py                         | 838 ++++++++++++++++
 python/helpers/sphinxcontrib/__init__.py      |  13 +
 .../sphinxcontrib/napoleon/__init__.py        | 387 ++++++++
 .../sphinxcontrib/napoleon/_version.py        |   8 +
 .../sphinxcontrib/napoleon/docstring.py       | 928 ++++++++++++++++++
 .../python/PythonHelpersLocator.java          |   7 +-
 .../python/documentation/DocStringUtil.java   |  14 +-
 .../GoogleCodeStyleDocString.java             |   2 +-
 .../PyDocumentationSettings.java              |   6 +-
 .../PyStructuredDocstringFormatter.java       |  18 +-
 .../documentation/SectionBasedDocString.java  |  12 +-
 13 files changed, 2258 insertions(+), 39 deletions(-)
 create mode 100644 python/helpers/google_formatter.py
 create mode 100644 python/helpers/six.py
 create mode 100644 python/helpers/sphinxcontrib/__init__.py
 create mode 100644 python/helpers/sphinxcontrib/napoleon/__init__.py
 create mode 100644 python/helpers/sphinxcontrib/napoleon/_version.py
 create mode 100644 python/helpers/sphinxcontrib/napoleon/docstring.py

diff --git a/python/helpers/google_formatter.py b/python/helpers/google_formatter.py
new file mode 100644
index 000000000000..3d8e021385a1
--- /dev/null
+++ b/python/helpers/google_formatter.py
@@ -0,0 +1,19 @@
+import sys
+
+from sphinxcontrib.napoleon.docstring import GoogleDocstring
+
+import rest_formatter
+
+
+def main(text=None):
+  try:
+    src = sys.stdin.read() if text is None else text
+    import textwrap
+    rest_formatter.main(str(GoogleDocstring(textwrap.dedent(src))))
+  except:
+    exc_type, exc_value, exc_traceback = sys.exc_info()
+    sys.stderr.write("Error calculating docstring: " + str(exc_value))
+
+
+if __name__ == '__main__':
+  main()
diff --git a/python/helpers/rest_formatter.py b/python/helpers/rest_formatter.py
index a1d176cd3f8f..98f99150b0ea 100644
--- a/python/helpers/rest_formatter.py
+++ b/python/helpers/rest_formatter.py
@@ -188,30 +188,35 @@ def parse_docstring(docstring, errors, **options):
   return MyParsedRstDocstring(writer.document)
 
 
-try:
-  src = sys.stdin.read()
+def main(text=None):
+  try:
+    src = sys.stdin.read() if text is None else text
 
-  errors = []
+    errors = []
 
-  class EmptyLinker(DocstringLinker):
-    def translate_indexterm(self, indexterm):
-      return ""
+    class EmptyLinker(DocstringLinker):
+      def translate_indexterm(self, indexterm):
+        return ""
 
-    def translate_identifier_xref(self, identifier, label=None):
-      return identifier
+      def translate_identifier_xref(self, identifier, label=None):
+        return identifier
 
-  docstring = parse_docstring(src, errors)
-  html = docstring.to_html(EmptyLinker())
+    docstring = parse_docstring(src, errors)
+    html = docstring.to_html(EmptyLinker())
 
-  if errors and not html:
-    sys.stderr.write("Error parsing docstring:\n")
-    for error in errors:
-      sys.stderr.write(str(error) + "\n")
+    if errors and not html:
+      sys.stderr.write("Error parsing docstring:\n")
+      for error in errors:
+        sys.stderr.write(str(error) + "\n")
+      sys.exit(1)
+
+    sys.stdout.write(html)
+    sys.stdout.flush()
+  except:
+    exc_type, exc_value, exc_traceback = sys.exc_info()
+    sys.stderr.write("Error calculating docstring: " + str(exc_value))
     sys.exit(1)
 
-  sys.stdout.write(html)
-  sys.stdout.flush()
-except:
-  exc_type, exc_value, exc_traceback = sys.exc_info()
-  sys.stderr.write("Error calculating docstring: " + str(exc_value))
-  sys.exit(1)
+
+if __name__ == '__main__':
+  main()
diff --git a/python/helpers/six.py b/python/helpers/six.py
new file mode 100644
index 000000000000..ffa3fe166ad0
--- /dev/null
+++ b/python/helpers/six.py
@@ -0,0 +1,838 @@
+"""Utilities for writing code that runs on Python 2 and 3"""
+
+# Copyright (c) 2010-2015 Benjamin Peterson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from __future__ import absolute_import
+
+import functools
+import itertools
+import operator
+import sys
+import types
+
+__author__ = "Benjamin Peterson <benjamin@python.org>"
+__version__ = "1.9.0"
+
+
+# Useful for very coarse version differentiation.
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+
+if PY3:
+    string_types = str,
+    integer_types = int,
+    class_types = type,
+    text_type = str
+    binary_type = bytes
+
+    MAXSIZE = sys.maxsize
+else:
+    string_types = basestring,
+    integer_types = (int, long)
+    class_types = (type, types.ClassType)
+    text_type = unicode
+    binary_type = str
+
+    if sys.platform.startswith("java"):
+        # Jython always uses 32 bits.
+        MAXSIZE = int((1 << 31) - 1)
+    else:
+        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
+        class X(object):
+            def __len__(self):
+                return 1 << 31
+        try:
+            len(X())
+        except OverflowError:
+            # 32-bit
+            MAXSIZE = int((1 << 31) - 1)
+        else:
+            # 64-bit
+            MAXSIZE = int((1 << 63) - 1)
+        del X
+
+
+def _add_doc(func, doc):
+    """Add documentation to a function."""
+    func.__doc__ = doc
+
+
+def _import_module(name):
+    """Import module, returning the module after the last dot."""
+    __import__(name)
+    return sys.modules[name]
+
+
+class _LazyDescr(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, tp):
+        result = self._resolve()
+        setattr(obj, self.name, result) # Invokes __set__.
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
+        return result
+
+
+class MovedModule(_LazyDescr):
+
+    def __init__(self, name, old, new=None):
+        super(MovedModule, self).__init__(name)
+        if PY3:
+            if new is None:
+                new = name
+            self.mod = new
+        else:
+            self.mod = old
+
+    def _resolve(self):
+        return _import_module(self.mod)
+
+    def __getattr__(self, attr):
+        _module = self._resolve()
+        value = getattr(_module, attr)
+        setattr(self, attr, value)
+        return value
+
+
+class _LazyModule(types.ModuleType):
+
+    def __init__(self, name):
+        super(_LazyModule, self).__init__(name)
+        self.__doc__ = self.__class__.__doc__
+
+    def __dir__(self):
+        attrs = ["__doc__", "__name__"]
+        attrs += [attr.name for attr in self._moved_attributes]
+        return attrs
+
+    # Subclasses should override this
+    _moved_attributes = []
+
+
+class MovedAttribute(_LazyDescr):
+
+    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
+        super(MovedAttribute, self).__init__(name)
+        if PY3:
+            if new_mod is None:
+                new_mod = name
+            self.mod = new_mod
+            if new_attr is None:
+                if old_attr is None:
+                    new_attr = name
+                else:
+                    new_attr = old_attr
+            self.attr = new_attr
+        else:
+            self.mod = old_mod
+            if old_attr is None:
+                old_attr = name
+            self.attr = old_attr
+
+    def _resolve(self):
+        module = _import_module(self.mod)
+        return getattr(module, self.attr)
+
+
+class _SixMetaPathImporter(object):
+    """
+    A meta path importer to import six.moves and its submodules.
+
+    This class implements a PEP302 finder and loader. It should be compatible
+    with Python 2.5 and all existing versions of Python3
+    """
+    def __init__(self, six_module_name):
+        self.name = six_module_name
+        self.known_modules = {}
+
+    def _add_module(self, mod, *fullnames):
+        for fullname in fullnames:
+            self.known_modules[self.name + "." + fullname] = mod
+
+    def _get_module(self, fullname):
+        return self.known_modules[self.name + "." + fullname]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.known_modules:
+            return self
+        return None
+
+    def __get_module(self, fullname):
+        try:
+            return self.known_modules[fullname]
+        except KeyError:
+            raise ImportError("This loader does not know module " + fullname)
+
+    def load_module(self, fullname):
+        try:
+            # in case of a reload
+            return sys.modules[fullname]
+        except KeyError:
+            pass
+        mod = self.__get_module(fullname)
+        if isinstance(mod, MovedModule):
+            mod = mod._resolve()
+        else:
+            mod.__loader__ = self
+        sys.modules[fullname] = mod
+        return mod
+
+    def is_package(self, fullname):
+        """
+        Return true, if the named module is a package.
+
+        We need this method to get correct spec objects with
+        Python 3.4 (see PEP451)
+        """
+        return hasattr(self.__get_module(fullname), "__path__")
+
+    def get_code(self, fullname):
+        """Return None
+
+        Required, if is_package is implemented"""
+        self.__get_module(fullname)  # eventually raises ImportError
+        return None
+    get_source = get_code  # same as get_code
+
+_importer = _SixMetaPathImporter(__name__)
+
+
+class _MovedItems(_LazyModule):
+    """Lazy loading of moved objects"""
+    __path__ = []  # mark as package
+
+
+_moved_attributes = [
+    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
+    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
+    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
+    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
+    MovedAttribute("intern", "__builtin__", "sys"),
+    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
+    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("reload_module", "__builtin__", "imp", "reload"),
+    MovedAttribute("reduce", "__builtin__", "functools"),
+    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
+    MovedAttribute("StringIO", "StringIO", "io"),
+    MovedAttribute("UserDict", "UserDict", "collections"),
+    MovedAttribute("UserList", "UserList", "collections"),
+    MovedAttribute("UserString", "UserString", "collections"),
+    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
+    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
+
+    MovedModule("builtins", "__builtin__"),
+    MovedModule("configparser", "ConfigParser"),
+    MovedModule("copyreg", "copy_reg"),
+    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
+    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
+    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
+    MovedModule("http_cookies", "Cookie", "http.cookies"),
+    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
+    MovedModule("html_parser", "HTMLParser", "html.parser"),
+    MovedModule("http_client", "httplib", "http.client"),
+    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
+    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
+    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
+    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
+    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
+    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
+    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
+    MovedModule("cPickle", "cPickle", "pickle"),
+    MovedModule("queue", "Queue"),
+    MovedModule("reprlib", "repr"),
+    MovedModule("socketserver", "SocketServer"),
+    MovedModule("_thread", "thread", "_thread"),
+    MovedModule("tkinter", "Tkinter"),
+    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
+    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
+    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
+    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
+    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
+    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
+    MovedModule("tkinter_colorchooser", "tkColorChooser",
+                "tkinter.colorchooser"),
+    MovedModule("tkinter_commondialog", "tkCommonDialog",
+                "tkinter.commondialog"),
+    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
+    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
+    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
+                "tkinter.simpledialog"),
+    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
+    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
+    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
+    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
+    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
+    MovedModule("winreg", "_winreg"),
+]
+for attr in _moved_attributes:
+    setattr(_MovedItems, attr.name, attr)
+    if isinstance(attr, MovedModule):
+        _importer._add_module(attr, "moves." + attr.name)
+del attr
+
+_MovedItems._moved_attributes = _moved_attributes
+
+moves = _MovedItems(__name__ + ".moves")
+_importer._add_module(moves, "moves")
+
+
+class Module_six_moves_urllib_parse(_LazyModule):
+    """Lazy loading of moved objects in six.moves.urllib_parse"""
+
+
+_urllib_parse_moved_attributes = [
+    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
+    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
+    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
+    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
+    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("quote", "urllib", "urllib.parse"),
+    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("urlencode", "urllib", "urllib.parse"),
+    MovedAttribute("splitquery", "urllib", "urllib.parse"),
+    MovedAttribute("splittag", "urllib", "urllib.parse"),
+    MovedAttribute("splituser", "urllib", "urllib.parse"),
+    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
+]
+for attr in _urllib_parse_moved_attributes:
+    setattr(Module_six_moves_urllib_parse, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
+                      "moves.urllib_parse", "moves.urllib.parse")
+
+
+class Module_six_moves_urllib_error(_LazyModule):
+    """Lazy loading of moved objects in six.moves.urllib_error"""
+
+
+_urllib_error_moved_attributes = [
+    MovedAttribute("URLError", "urllib2", "urllib.error"),
+    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
+    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
+]
+for attr in _urllib_error_moved_attributes:
+    setattr(Module_six_moves_urllib_error, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
+                      "moves.urllib_error", "moves.urllib.error")
+
+
+class Module_six_moves_urllib_request(_LazyModule):
+    """Lazy loading of moved objects in six.moves.urllib_request"""
+
+
+_urllib_request_moved_attributes = [
+    MovedAttribute("urlopen", "urllib2", "urllib.request"),
+    MovedAttribute("install_opener", "urllib2", "urllib.request"),
+    MovedAttribute("build_opener", "urllib2", "urllib.request"),
+    MovedAttribute("pathname2url", "urllib", "urllib.request"),
+    MovedAttribute("url2pathname", "urllib", "urllib.request"),
+    MovedAttribute("getproxies", "urllib", "urllib.request"),
+    MovedAttribute("Request", "urllib2", "urllib.request"),
+    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
+    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
+    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
+    MovedAttribute("URLopener", "urllib", "urllib.request"),
+    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
+]
+for attr in _urllib_request_moved_attributes:
+    setattr(Module_six_moves_urllib_request, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
+                      "moves.urllib_request", "moves.urllib.request")
+
+
+class Module_six_moves_urllib_response(_LazyModule):
+    """Lazy loading of moved objects in six.moves.urllib_response"""
+
+
+_urllib_response_moved_attributes = [
+    MovedAttribute("addbase", "urllib", "urllib.response"),
+    MovedAttribute("addclosehook", "urllib", "urllib.response"),
+    MovedAttribute("addinfo", "urllib", "urllib.response"),
+    MovedAttribute("addinfourl", "urllib", "urllib.response"),
+]
+for attr in _urllib_response_moved_attributes:
+    setattr(Module_six_moves_urllib_response, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
+                      "moves.urllib_response", "moves.urllib.response")
+
+
+class Module_six_moves_urllib_robotparser(_LazyModule):
+    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
+
+
+_urllib_robotparser_moved_attributes = [
+    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
+]
+for attr in _urllib_robotparser_moved_attributes:
+    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
+                      "moves.urllib_robotparser", "moves.urllib.robotparser")
+
+
+class Module_six_moves_urllib(types.ModuleType):
+    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
+    __path__ = []  # mark as package
+    parse = _importer._get_module("moves.urllib_parse")
+    error = _importer._get_module("moves.urllib_error")
+    request = _importer._get_module("moves.urllib_request")
+    response = _importer._get_module("moves.urllib_response")
+    robotparser = _importer._get_module("moves.urllib_robotparser")
+
+    def __dir__(self):
+        return ['parse', 'error', 'request', 'response', 'robotparser']
+
+_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
+                      "moves.urllib")
+
+
+def add_move(move):
+    """Add an item to six.moves."""
+    setattr(_MovedItems, move.name, move)
+
+
+def remove_move(name):
+    """Remove item from six.moves."""
+    try:
+        delattr(_MovedItems, name)
+    except AttributeError:
+        try:
+            del moves.__dict__[name]
+        except KeyError:
+            raise AttributeError("no such move, %r" % (name,))
+
+
+if PY3:
+    _meth_func = "__func__"
+    _meth_self = "__self__"
+
+    _func_closure = "__closure__"
+    _func_code = "__code__"
+    _func_defaults = "__defaults__"
+    _func_globals = "__globals__"
+else:
+    _meth_func = "im_func"
+    _meth_self = "im_self"
+
+    _func_closure = "func_closure"
+    _func_code = "func_code"
+    _func_defaults = "func_defaults"
+    _func_globals = "func_globals"
+
+
+try:
+    advance_iterator = next
+except NameError:
+    def advance_iterator(it):
+        return it.next()
+next = advance_iterator
+
+
+try:
+    callable = callable
+except NameError:
+    def callable(obj):
+        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+
+
+if PY3:
+    def get_unbound_function(unbound):
+        return unbound
+
+    create_bound_method = types.MethodType
+
+    Iterator = object
+else:
+    def get_unbound_function(unbound):
+        return unbound.im_func
+
+    def create_bound_method(func, obj):
+        return types.MethodType(func, obj, obj.__class__)
+
+    class Iterator(object):
+
+        def next(self):
+            return type(self).__next__(self)
+
+    callable = callable
+_add_doc(get_unbound_function,
+         """Get the function out of a possibly unbound function""")
+
+
+get_method_function = operator.attrgetter(_meth_func)
+get_method_self = operator.attrgetter(_meth_self)
+get_function_closure = operator.attrgetter(_func_closure)
+get_function_code = operator.attrgetter(_func_code)
+get_function_defaults = operator.attrgetter(_func_defaults)
+get_function_globals = operator.attrgetter(_func_globals)
+
+
+if PY3:
+    def iterkeys(d, **kw):
+        return iter(d.keys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.values(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.items(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.lists(**kw))
+
+    viewkeys = operator.methodcaller("keys")
+
+    viewvalues = operator.methodcaller("values")
+
+    viewitems = operator.methodcaller("items")
+else:
+    def iterkeys(d, **kw):
+        return iter(d.iterkeys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.itervalues(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.iteritems(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.iterlists(**kw))
+
+    viewkeys = operator.methodcaller("viewkeys")
+
+    viewvalues = operator.methodcaller("viewvalues")
+
+    viewitems = operator.methodcaller("viewitems")
+
+_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
+_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
+_add_doc(iteritems,
+         "Return an iterator over the (key, value) pairs of a dictionary.")
+_add_doc(iterlists,
+         "Return an iterator over the (key, [values]) pairs of a dictionary.")
+
+
+if PY3:
+    def b(s):
+        return s.encode("latin-1")
+    def u(s):
+        return s
+    unichr = chr
+    if sys.version_info[1] <= 1:
+        def int2byte(i):
+            return bytes((i,))
+    else:
+        # This is about 2x faster than the implementation above on 3.2+
+        int2byte = operator.methodcaller("to_bytes", 1, "big")
+    byte2int = operator.itemgetter(0)
+    indexbytes = operator.getitem
+    iterbytes = iter
+    import io
+    StringIO = io.StringIO
+    BytesIO = io.BytesIO
+    _assertCountEqual = "assertCountEqual"
+    _assertRaisesRegex = "assertRaisesRegex"
+    _assertRegex = "assertRegex"
+else:
+    def b(s):
+        return s
+    # Workaround for standalone backslash
+    def u(s):
+        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
+    unichr = unichr
+    int2byte = chr
+    def byte2int(bs):
+        return ord(bs[0])
+    def indexbytes(buf, i):
+        return ord(buf[i])
+    iterbytes = functools.partial(itertools.imap, ord)
+    import StringIO
+    StringIO = BytesIO = StringIO.StringIO
+    _assertCountEqual = "assertItemsEqual"
+    _assertRaisesRegex = "assertRaisesRegexp"
+    _assertRegex = "assertRegexpMatches"
+_add_doc(b, """Byte literal""")
+_add_doc(u, """Text literal""")
+
+
+def assertCountEqual(self, *args, **kwargs):
+    return getattr(self, _assertCountEqual)(*args, **kwargs)
+
+
+def assertRaisesRegex(self, *args, **kwargs):
+    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
+
+
+def assertRegex(self, *args, **kwargs):
+    return getattr(self, _assertRegex)(*args, **kwargs)
+
+
+if PY3:
+    exec_ = getattr(moves.builtins, "exec")
+
+
+    def reraise(tp, value, tb=None):
+        if value is None:
+            value = tp()
+        if value.__traceback__ is not tb:
+            raise value.with_traceback(tb)
+        raise value
+
+else:
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+
+    exec_("""def reraise(tp, value, tb=None):
+    raise tp, value, tb
+""")
+
+
+if sys.version_info[:2] == (3, 2):
+    exec_("""def raise_from(value, from_value):
+    if from_value is None:
+        raise value
+    raise value from from_value
+""")
+elif sys.version_info[:2] > (3, 2):
+    exec_("""def raise_from(value, from_value):
+    raise value from from_value
+""")
+else:
+    def raise_from(value, from_value):
+        raise value
+
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
+    def print_(*args, **kwargs):
+        """The new-style print function for Python 2.4 and 2.5."""
+        fp = kwargs.pop("file", sys.stdout)
+        if fp is None:
+            return
+        def write(data):
+            if not isinstance(data, basestring):
+                data = str(data)
+            # If the file has an encoding, encode unicode with it.
+            if (isinstance(fp, file) and
+                isinstance(data, unicode) and
+                fp.encoding is not None):
+                errors = getattr(fp, "errors", None)
+                if errors is None:
+                    errors = "strict"
+                data = data.encode(fp.encoding, errors)
+            fp.write(data)
+        want_unicode = False
+        sep = kwargs.pop("sep", None)
+        if sep is not None:
+            if isinstance(sep, unicode):
+                want_unicode = True
+            elif not isinstance(sep, str):
+                raise TypeError("sep must be None or a string")
+        end = kwargs.pop("end", None)
+        if end is not None:
+            if isinstance(end, unicode):
+                want_unicode = True
+            elif not isinstance(end, str):
+                raise TypeError("end must be None or a string")
+        if kwargs:
+            raise TypeError("invalid keyword arguments to print()")
+        if not want_unicode:
+            for arg in args:
+                if isinstance(arg, unicode):
+                    want_unicode = True
+                    break
+        if want_unicode:
+            newline = unicode("\n")
+            space = unicode(" ")
+        else:
+            newline = "\n"
+            space = " "
+        if sep is None:
+            sep = space
+        if end is None:
+            end = newline
+        for i, arg in enumerate(args):
+            if i:
+                write(sep)
+            write(arg)
+        write(end)
+if sys.version_info[:2] < (3, 3):
+    _print = print_
+    def print_(*args, **kwargs):
+        fp = kwargs.get("file", sys.stdout)
+        flush = kwargs.pop("flush", False)
+        _print(*args, **kwargs)
+        if flush and fp is not None:
+            fp.flush()
+
+_add_doc(reraise, """Reraise an exception.""")
+
+if sys.version_info[0:2] < (3, 4):
+    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
+              updated=functools.WRAPPER_UPDATES):
+        def wrapper(f):
+            f = functools.wraps(wrapped, assigned, updated)(f)
+            f.__wrapped__ = wrapped
+            return f
+        return wrapper
+else:
+    wraps = functools.wraps
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
+
+
+def add_metaclass(metaclass):
+    """Class decorator for creating a class with a metaclass."""
+    def wrapper(cls):
+        orig_vars = cls.__dict__.copy()
+        slots = orig_vars.get('__slots__')
+        if slots is not None:
+            if isinstance(slots, str):
+                slots = [slots]
+            for slots_var in slots:
+                orig_vars.pop(slots_var)
+        orig_vars.pop('__dict__', None)
+        orig_vars.pop('__weakref__', None)
+        return metaclass(cls.__name__, cls.__bases__, orig_vars)
+    return wrapper
+
+
+def python_2_unicode_compatible(klass):
+    """
+    A decorator that defines __unicode__ and __str__ methods under Python 2.
+    Under Python 3 it does nothing.
+
+    To support Python 2 and 3 with a single code base, define a __str__ method
+    returning text and apply this decorator to the class.
+    """
+    if PY2:
+        if '__str__' not in klass.__dict__:
+            raise ValueError("@python_2_unicode_compatible cannot be applied "
+                             "to %s because it doesn't define __str__()." %
+                             klass.__name__)
+        klass.__unicode__ = klass.__str__
+        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
+    return klass
+
+
+# Complete the moves implementation.
+# This code is at the end of this module to speed up module loading.
+# Turn this module into a package.
+__path__ = []  # required for PEP 302 and PEP 451
+__package__ = __name__  # see PEP 366 @ReservedAssignment
+if globals().get("__spec__") is not None:
+    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
+# Remove other six meta path importers, since they cause problems. This can
+# happen if six is removed from sys.modules and then reloaded. (Setuptools does
+# this for some reason.)
+if sys.meta_path:
+    for i, importer in enumerate(sys.meta_path):
+        # Here's some real nastiness: Another "instance" of the six module might
+        # be floating around. Therefore, we can't use isinstance() to check for
+        # the six meta path importer, since the other six instance will have
+        # inserted an importer with different class.
+        if (type(importer).__name__ == "_SixMetaPathImporter" and
+            importer.name == __name__):
+            del sys.meta_path[i]
+            break
+    del i, importer
+# Finally, add the importer to the meta path import hook.
+sys.meta_path.append(_importer)
diff --git a/python/helpers/sphinxcontrib/__init__.py b/python/helpers/sphinxcontrib/__init__.py
new file mode 100644
index 000000000000..ce7beff5d83a
--- /dev/null
+++ b/python/helpers/sphinxcontrib/__init__.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+"""
+    sphinxcontrib
+    ~~~~~~~~~~~~~
+
+    This package is a namespace package that contains all extensions
+    distributed in the ``sphinx-contrib`` distribution.
+
+    :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+__import__('pkg_resources').declare_namespace(__name__)
diff --git a/python/helpers/sphinxcontrib/napoleon/__init__.py b/python/helpers/sphinxcontrib/napoleon/__init__.py
new file mode 100644
index 000000000000..f76efd191338
--- /dev/null
+++ b/python/helpers/sphinxcontrib/napoleon/__init__.py
@@ -0,0 +1,387 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014 Rob Ruana
+# Licensed under the BSD License, see LICENSE file for details.
+
+"""Sphinx napoleon extension -- support for NumPy and Google style docstrings.
+"""
+
+import sys
+
+from six import iteritems
+from sphinxcontrib.napoleon.docstring import GoogleDocstring, NumpyDocstring
+from sphinxcontrib.napoleon._version import __version__
+assert __version__  # silence pyflakes
+
+
+class Config(object):
+    """Sphinx napoleon extension settings in `conf.py`.
+
+    Listed below are all the settings used by napoleon and their default
+    values. These settings can be changed in the Sphinx `conf.py` file. Make
+    sure that both "sphinx.ext.autodoc" and "sphinxcontrib.napoleon" are
+    enabled in `conf.py`::
+
+        # conf.py
+
+        # Add any Sphinx extension module names here, as strings
+        extensions = ['sphinx.ext.autodoc', 'sphinxcontrib.napoleon']
+
+        # Napoleon settings
+        napoleon_google_docstring = True
+        napoleon_numpy_docstring = True
+        napoleon_include_private_with_doc = False
+        napoleon_include_special_with_doc = True
+        napoleon_use_admonition_for_examples = False
+        napoleon_use_admonition_for_notes = False
+        napoleon_use_admonition_for_references = False
+        napoleon_use_ivar = False
+        napoleon_use_param = True
+        napoleon_use_rtype = True
+
+    .. _Google style:
+       http://google.github.io/styleguide/pyguide.html
+    .. _NumPy style:
+       https://github.com/numpy/numpy/blob/master/doc/HOWTO_DOCUMENT.rst.txt
+
+    Attributes
+    ----------
+    napoleon_google_docstring : bool, defaults to True
+        True to parse `Google style`_ docstrings. False to disable support
+        for Google style docstrings.
+    napoleon_numpy_docstring : bool, defaults to True
+        True to parse `NumPy style`_ docstrings. False to disable support
+        for NumPy style docstrings.
+    napoleon_include_private_with_doc : bool, defaults to False
+        True to include private members (like ``_membername``) with docstrings
+        in the documentation. False to fall back to Sphinx's default behavior.
+
+        **If True**::
+
+            def _included(self):
+                \"\"\"
+                This will be included in the docs because it has a docstring
+                \"\"\"
+                pass
+
+            def _skipped(self):
+                # This will NOT be included in the docs
+                pass
+
+    napoleon_include_special_with_doc : bool, defaults to True
+        True to include special members (like ``__membername__``) with
+        docstrings in the documentation. False to fall back to Sphinx's
+        default behavior.
+
+        **If True**::
+
+            def __str__(self):
+                \"\"\"
+                This will be included in the docs because it has a docstring
+                \"\"\"
+                return unicode(self).encode('utf-8')
+
+            def __unicode__(self):
+                # This will NOT be included in the docs
+                return unicode(self.__class__.__name__)
+
+    napoleon_use_admonition_for_examples : bool, defaults to False
+        True to use the ``.. admonition::`` directive for the **Example** and
+        **Examples** sections. False to use the ``.. rubric::`` directive
+        instead. One may look better than the other depending on what HTML
+        theme is used.
+
+        This `NumPy style`_ snippet will be converted as follows::
+
+            Example
+            -------
+            This is just a quick example
+
+        **If True**::
+
+            .. admonition:: Example
+
+               This is just a quick example
+
+        **If False**::
+
+            .. rubric:: Example
+
+            This is just a quick example
+
+    napoleon_use_admonition_for_notes : bool, defaults to False
+        True to use the ``.. admonition::`` directive for **Notes** sections.
+        False to use the ``.. rubric::`` directive instead.
+
+        Note
+        ----
+        The singular **Note** section will always be converted to a
+        ``.. note::`` directive.
+
+        See Also
+        --------
+        :attr:`napoleon_use_admonition_for_examples`
+
+    napoleon_use_admonition_for_references : bool, defaults to False
+        True to use the ``.. admonition::`` directive for **References**
+        sections. False to use the ``.. rubric::`` directive instead.
+
+        See Also
+        --------
+        :attr:`napoleon_use_admonition_for_examples`
+
+    napoleon_use_ivar : bool, defaults to False
+        True to use the ``:ivar:`` role for instance variables. False to use
+        the ``.. attribute::`` directive instead.
+
+        This `NumPy style`_ snippet will be converted as follows::
+
+            Attributes
+            ----------
+            attr1 : int
+                Description of `attr1`
+
+        **If True**::
+
+            :ivar attr1: Description of `attr1`
+            :vartype attr1: int
+
+        **If False**::
+
+            .. attribute:: attr1
+
+               *int*
+
+               Description of `attr1`
+
+    napoleon_use_param : bool, defaults to True
+        True to use a ``:param:`` role for each function parameter. False to
+        use a single ``:parameters:`` role for all the parameters.
+
+        This `NumPy style`_ snippet will be converted as follows::
+
+            Parameters
+            ----------
+            arg1 : str
+                Description of `arg1`
+            arg2 : int, optional
+                Description of `arg2`, defaults to 0
+
+        **If True**::
+
+            :param arg1: Description of `arg1`
+            :type arg1: str
+            :param arg2: Description of `arg2`, defaults to 0
+            :type arg2: int, optional
+
+        **If False**::
+
+            :parameters: * **arg1** (*str*) --
+                           Description of `arg1`
+                         * **arg2** (*int, optional*) --
+                           Description of `arg2`, defaults to 0
+
+    napoleon_use_rtype : bool, defaults to True
+        True to use the ``:rtype:`` role for the return type. False to output
+        the return type inline with the description.
+
+        This `NumPy style`_ snippet will be converted as follows::
+
+            Returns
+            -------
+            bool
+                True if successful, False otherwise
+
+        **If True**::
+
+            :returns: True if successful, False otherwise
+            :rtype: bool
+
+        **If False**::
+
+            :returns: *bool* -- True if successful, False otherwise
+
+    """
+    _config_values = {
+        'napoleon_google_docstring': (True, 'env'),
+        'napoleon_numpy_docstring': (True, 'env'),
+        'napoleon_include_private_with_doc': (False, 'env'),
+        'napoleon_include_special_with_doc': (True, 'env'),
+        'napoleon_use_admonition_for_examples': (False, 'env'),
+        'napoleon_use_admonition_for_notes': (False, 'env'),
+        'napoleon_use_admonition_for_references': (False, 'env'),
+        'napoleon_use_ivar': (False, 'env'),
+        'napoleon_use_param': (True, 'env'),
+        'napoleon_use_rtype': (True, 'env'),
+    }
+
+    def __init__(self, **settings):
+        for name, (default, rebuild) in iteritems(self._config_values):
+            setattr(self, name, default)
+        for name, value in iteritems(settings):
+            setattr(self, name, value)
+
+
+def setup(app):
+    """Sphinx extension setup function.
+
+    When the extension is loaded, Sphinx imports this module and executes
+    the ``setup()`` function, which in turn notifies Sphinx of everything
+    the extension offers.
+
+    Parameters
+    ----------
+    app : sphinx.application.Sphinx
+        Application object representing the Sphinx process
+
+    See Also
+    --------
+    `The Sphinx documentation on Extensions
+    <http://sphinx-doc.org/extensions.html>`_
+
+    `The Extension Tutorial <http://sphinx-doc.org/extdev/tutorial.html>`_
+
+    `The Extension API <http://sphinx-doc.org/extdev/appapi.html>`_
+
+
+    """
+    from sphinx.application import Sphinx
+    if not isinstance(app, Sphinx):
+        return  # probably called by tests
+
+    app.connect('autodoc-process-docstring', _process_docstring)
+    app.connect('autodoc-skip-member', _skip_member)
+
+    for name, (default, rebuild) in iteritems(Config._config_values):
+        app.add_config_value(name, default, rebuild)
+
+
+def _process_docstring(app, what, name, obj, options, lines):
+    """Process the docstring for a given python object.
+
+    Called when autodoc has read and processed a docstring. `lines` is a list
+    of docstring lines that `_process_docstring` modifies in place to change
+    what Sphinx outputs.
+
+    The following settings in conf.py control what styles of docstrings will
+    be parsed:
+
+    * ``napoleon_google_docstring`` -- parse Google style docstrings
+    * ``napoleon_numpy_docstring`` -- parse NumPy style docstrings
+
+    Parameters
+    ----------
+    app : sphinx.application.Sphinx
+        Application object representing the Sphinx process.
+    what : str
+        A string specifying the type of the object to which the docstring
+        belongs. Valid values: "module", "class", "exception", "function",
+        "method", "attribute".
+    name : str
+        The fully qualified name of the object.
+    obj : module, class, exception, function, method, or attribute
+        The object to which the docstring belongs.
+    options : sphinx.ext.autodoc.Options
+        The options given to the directive: an object with attributes
+        inherited_members, undoc_members, show_inheritance and noindex that
+        are True if the flag option of same name was given to the auto
+        directive.
+    lines : list of str
+        The lines of the docstring, see above.
+
+        .. note:: `lines` is modified *in place*
+
+    """
+    result_lines = lines
+    if app.config.napoleon_numpy_docstring:
+        docstring = NumpyDocstring(result_lines, app.config, app, what, name,
+                                   obj, options)
+        result_lines = docstring.lines()
+    if app.config.napoleon_google_docstring:
+        docstring = GoogleDocstring(result_lines, app.config, app, what, name,
+                                    obj, options)
+        result_lines = docstring.lines()
+    lines[:] = result_lines[:]
+
+
+def _skip_member(app, what, name, obj, skip, options):
+    """Determine if private and special class members are included in docs.
+
+    The following settings in conf.py determine if private and special class
+    members are included in the generated documentation:
+
+    * ``napoleon_include_private_with_doc`` --
+      include private members if they have docstrings
+    * ``napoleon_include_special_with_doc`` --
+      include special members if they have docstrings
+
+    Parameters
+    ----------
+    app : sphinx.application.Sphinx
+        Application object representing the Sphinx process
+    what : str
+        A string specifying the type of the object to which the member
+        belongs. Valid values: "module", "class", "exception", "function",
+        "method", "attribute".
+    name : str
+        The name of the member.
+    obj : module, class, exception, function, method, or attribute.
+        For example, if the member is the __init__ method of class A, then
+        `obj` will be `A.__init__`.
+    skip : bool
+        A boolean indicating if autodoc will skip this member if `_skip_member`
+        does not override the decision
+    options : sphinx.ext.autodoc.Options
+        The options given to the directive: an object with attributes
+        inherited_members, undoc_members, show_inheritance and noindex that
+        are True if the flag option of same name was given to the auto
+        directive.
+
+    Returns
+    -------
+    bool
+        True if the member should be skipped during creation of the docs,
+        False if it should be included in the docs.
+
+    """
+    has_doc = getattr(obj, '__doc__', False)
+    is_member = (what == 'class' or what == 'exception' or what == 'module')
+    if name != '__weakref__' and name != '__init__' and has_doc and is_member:
+        cls_is_owner = False
+        if what == 'class' or what == 'exception':
+            if sys.version_info[0] < 3:
+                cls = getattr(obj, 'im_class', getattr(obj, '__objclass__',
+                              None))
+                cls_is_owner = (cls and hasattr(cls, name) and
+                                name in cls.__dict__)
+            elif sys.version_info[1] >= 3:
+                qualname = getattr(obj, '__qualname__', '')
+                cls_path, _, _ = qualname.rpartition('.')
+                if cls_path:
+                    try:
+                        if '.' in cls_path:
+                            import importlib
+                            import functools
+
+                            mod = importlib.import_module(obj.__module__)
+                            mod_path = cls_path.split('.')
+                            cls = functools.reduce(getattr, mod_path, mod)
+                        else:
+                            cls = obj.__globals__[cls_path]
+                    except:
+                        cls_is_owner = False
+                    else:
+                        cls_is_owner = (cls and hasattr(cls, name) and
+                                        name in cls.__dict__)
+                else:
+                    cls_is_owner = False
+            else:
+                cls_is_owner = True
+
+        if what == 'module' or cls_is_owner:
+            is_special = name.startswith('__') and name.endswith('__')
+            is_private = not is_special and name.startswith('_')
+            inc_special = app.config.napoleon_include_special_with_doc
+            inc_private = app.config.napoleon_include_private_with_doc
+            if (is_special and inc_special) or (is_private and inc_private):
+                return False
+    return skip
diff --git a/python/helpers/sphinxcontrib/napoleon/_version.py b/python/helpers/sphinxcontrib/napoleon/_version.py
new file mode 100644
index 000000000000..d305fdb86e77
--- /dev/null
+++ b/python/helpers/sphinxcontrib/napoleon/_version.py
@@ -0,0 +1,8 @@
+# Package versioning solution originally found here:
+# http://stackoverflow.com/q/458550
+
+# Store the version here so:
+# 1) we don't load dependencies by storing it in __init__.py
+# 2) we can import it in setup.py for the same reason
+# 3) we can import it into your module
+__version__ = '0.3.11'
diff --git a/python/helpers/sphinxcontrib/napoleon/docstring.py b/python/helpers/sphinxcontrib/napoleon/docstring.py
new file mode 100644
index 000000000000..400c24925205
--- /dev/null
+++ b/python/helpers/sphinxcontrib/napoleon/docstring.py
@@ -0,0 +1,928 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014 Rob Ruana
+# Licensed under the BSD License, see LICENSE file for details.
+
+"""Classes for docstring parsing and formatting."""
+
+import collections
+import inspect
+import re
+import sys
+
+from pockets import modify_iter
+from six import string_types
+from six.moves import range
+
+
+_directive_regex = re.compile(r'\.\. \S+::')
+_google_section_regex = re.compile(r'^(\s|\w)+:\s*$')
+_google_typed_arg_regex = re.compile(r'\s*(.+?)\s*\(\s*(.+?)\s*\)')
+_numpy_section_regex = re.compile(r'^[=\-`:\'"~^_*+#<>]{2,}\s*$')
+_xref_regex = re.compile(r'(:\w+:\S+:`.+?`|:\S+:`.+?`|`.+?`)')
+
+
+class GoogleDocstring(object):
+    """Convert Google style docstrings to reStructuredText.
+
+    Parameters
+    ----------
+    docstring : str or List[str]
+        The docstring to parse, given either as a string or split into
+        individual lines.
+    config : Optional[sphinxcontrib.napoleon.Config or sphinx.config.Config]
+        The configuration settings to use. If not given, defaults to the
+        config object on `app`; or if `app` is not given defaults to the
+        a new `sphinxcontrib.napoleon.Config` object.
+
+        See Also
+        --------
+        :class:`sphinxcontrib.napoleon.Config`
+
+    Other Parameters
+    ----------------
+    app : Optional[sphinx.application.Sphinx]
+        Application object representing the Sphinx process.
+    what : Optional[str]
+        A string specifying the type of the object to which the docstring
+        belongs. Valid values: "module", "class", "exception", "function",
+        "method", "attribute".
+    name : Optional[str]
+        The fully qualified name of the object.
+    obj : module, class, exception, function, method, or attribute
+        The object to which the docstring belongs.
+    options : Optional[sphinx.ext.autodoc.Options]
+        The options given to the directive: an object with attributes
+        inherited_members, undoc_members, show_inheritance and noindex that
+        are True if the flag option of same name was given to the auto
+        directive.
+
+    Example
+    -------
+    >>> from sphinxcontrib.napoleon import Config
+    >>> config = Config(napoleon_use_param=True, napoleon_use_rtype=True)
+    >>> docstring = '''One line summary.
+    ...
+    ... Extended description.
+    ...
+    ... Args:
+    ...   arg1(int): Description of `arg1`
+    ...   arg2(str): Description of `arg2`
+    ... Returns:
+    ...   str: Description of return value.
+    ... '''
+    >>> print(GoogleDocstring(docstring, config))
+    One line summary.
+    <BLANKLINE>
+    Extended description.
+    <BLANKLINE>
+    :param arg1: Description of `arg1`
+    :type arg1: int
+    :param arg2: Description of `arg2`
+    :type arg2: str
+    <BLANKLINE>
+    :returns: Description of return value.
+    :rtype: str
+    <BLANKLINE>
+
+    """
+    def __init__(self, docstring, config=None, app=None, what='', name='',
+                 obj=None, options=None):
+        self._config = config
+        self._app = app
+
+        if not self._config:
+            from sphinxcontrib.napoleon import Config
+            self._config = self._app and self._app.config or Config()
+
+        if not what:
+            if inspect.isclass(obj):
+                what = 'class'
+            elif inspect.ismodule(obj):
+                what = 'module'
+            elif isinstance(obj, collections.Callable):
+                what = 'function'
+            else:
+                what = 'object'
+
+        self._what = what
+        self._name = name
+        self._obj = obj
+        self._opt = options
+        if isinstance(docstring, string_types):
+            docstring = docstring.splitlines()
+        self._lines = docstring
+        self._line_iter = modify_iter(docstring, modifier=lambda s: s.rstrip())
+        self._parsed_lines = []
+        self._is_in_section = False
+        self._section_indent = 0
+        if not hasattr(self, '_directive_sections'):
+            self._directive_sections = []
+        if not hasattr(self, '_sections'):
+            self._sections = {
+                'args': self._parse_parameters_section,
+                'arguments': self._parse_parameters_section,
+                'attributes': self._parse_attributes_section,
+                'example': self._parse_examples_section,
+                'examples': self._parse_examples_section,
+                'keyword args': self._parse_keyword_arguments_section,
+                'keyword arguments': self._parse_keyword_arguments_section,
+                'methods': self._parse_methods_section,
+                'note': self._parse_note_section,
+                'notes': self._parse_notes_section,
+                'other parameters': self._parse_other_parameters_section,
+                'parameters': self._parse_parameters_section,
+                'return': self._parse_returns_section,
+                'returns': self._parse_returns_section,
+                'raises': self._parse_raises_section,
+                'references': self._parse_references_section,
+                'see also': self._parse_see_also_section,
+                'warning': self._parse_warning_section,
+                'warnings': self._parse_warning_section,
+                'warns': self._parse_warns_section,
+                'yield': self._parse_yields_section,
+                'yields': self._parse_yields_section,
+            }
+        self._parse()
+
+    def __str__(self):
+        """Return the parsed docstring in reStructuredText format.
+
+        Returns
+        -------
+        str
+            UTF-8 encoded version of the docstring.
+
+        """
+        if sys.version_info[0] >= 3:
+            return self.__unicode__()
+        else:
+            return self.__unicode__().encode('utf8')
+
+    def __unicode__(self):
+        """Return the parsed docstring in reStructuredText format.
+
+        Returns
+        -------
+        unicode
+            Unicode version of the docstring.
+
+        """
+        return u'\n'.join(self.lines())
+
+    def lines(self):
+        """Return the parsed lines of the docstring in reStructuredText format.
+
+        Returns
+        -------
+        List[str]
+            The lines of the docstring in a list.
+
+        """
+        return self._parsed_lines
+
+    def _consume_indented_block(self, indent=1):
+        lines = []
+        line = self._line_iter.peek()
+        while(not self._is_section_break() and
+              (not line or self._is_indented(line, indent))):
+            lines.append(next(self._line_iter))
+            line = self._line_iter.peek()
+        return lines
+
+    def _consume_contiguous(self):
+        lines = []
+        while (self._line_iter.has_next() and
+               self._line_iter.peek() and
+               not self._is_section_header()):
+            lines.append(next(self._line_iter))
+        return lines
+
+    def _consume_empty(self):
+        lines = []
+        line = self._line_iter.peek()
+        while self._line_iter.has_next() and not line:
+            lines.append(next(self._line_iter))
+            line = self._line_iter.peek()
+        return lines
+
+    def _consume_field(self, parse_type=True, prefer_type=False):
+        line = next(self._line_iter)
+
+        before, colon, after = self._partition_field_on_colon(line)
+        _name, _type, _desc = before, '', after
+
+        if parse_type:
+            match = _google_typed_arg_regex.match(before)
+            if match:
+                _name = match.group(1)
+                _type = match.group(2)
+
+        if _name[:2] == '**':
+            _name = r'\*\*'+_name[2:]
+        elif _name[:1] == '*':
+            _name = r'\*'+_name[1:]
+
+        if prefer_type and not _type:
+            _type, _name = _name, _type
+        indent = self._get_indent(line) + 1
+        _desc = [_desc] + self._dedent(self._consume_indented_block(indent))
+        _desc = self.__class__(_desc, self._config).lines()
+        return _name, _type, _desc
+
+    def _consume_fields(self, parse_type=True, prefer_type=False):
+        self._consume_empty()
+        fields = []
+        while not self._is_section_break():
+            _name, _type, _desc = self._consume_field(parse_type, prefer_type)
+            if _name or _type or _desc:
+                fields.append((_name, _type, _desc,))
+        return fields
+
+    def _consume_inline_attribute(self):
+        line = next(self._line_iter)
+        _type, colon, _desc = self._partition_field_on_colon(line)
+        if not colon:
+            _type, _desc = _desc, _type
+        _desc = [_desc] + self._dedent(self._consume_to_end())
+        _desc = self.__class__(_desc, self._config).lines()
+        return _type, _desc
+
+    def _consume_returns_section(self):
+        lines = self._dedent(self._consume_to_next_section())
+        if lines:
+            before, colon, after = self._partition_field_on_colon(lines[0])
+            _name, _type, _desc = '', '', lines
+
+            if colon:
+                if after:
+                    _desc = [after] + lines[1:]
+                else:
+                    _desc = lines[1:]
+
+                match = _google_typed_arg_regex.match(before)
+                if match:
+                    _name = match.group(1)
+                    _type = match.group(2)
+                else:
+                    _type = before
+
+            _desc = self.__class__(_desc, self._config).lines()
+            return [(_name, _type, _desc,)]
+        else:
+            return []
+
+    def _consume_usage_section(self):
+        lines = self._dedent(self._consume_to_next_section())
+        return lines
+
+    def _consume_section_header(self):
+        section = next(self._line_iter)
+        stripped_section = section.strip(':')
+        if stripped_section.lower() in self._sections:
+            section = stripped_section
+        return section
+
+    def _consume_to_end(self):
+        lines = []
+        while self._line_iter.has_next():
+            lines.append(next(self._line_iter))
+        return lines
+
+    def _consume_to_next_section(self):
+        self._consume_empty()
+        lines = []
+        while not self._is_section_break():
+            lines.append(next(self._line_iter))
+        return lines + self._consume_empty()
+
+    def _dedent(self, lines, full=False):
+        if full:
+            return [line.lstrip() for line in lines]
+        else:
+            min_indent = self._get_min_indent(lines)
+            return [line[min_indent:] for line in lines]
+
+    def _format_admonition(self, admonition, lines):
+        lines = self._strip_empty(lines)
+        if len(lines) == 1:
+            return ['.. %s:: %s' % (admonition, lines[0].strip()), '']
+        elif lines:
+            lines = self._indent(self._dedent(lines), 3)
+            return ['.. %s::' % admonition, ''] + lines + ['']
+        else:
+            return ['.. %s::' % admonition, '']
+
+    def _format_block(self, prefix, lines, padding=None):
+        if lines:
+            if padding is None:
+                padding = ' ' * len(prefix)
+            result_lines = []
+            for i, line in enumerate(lines):
+                if i == 0:
+                    result_lines.append((prefix + line).rstrip())
+                elif line:
+                    result_lines.append(padding + line)
+                else:
+                    result_lines.append('')
+            return result_lines
+        else:
+            return [prefix]
+
+    def _format_field(self, _name, _type, _desc):
+        _desc = self._strip_empty(_desc)
+        has_desc = any(_desc)
+        separator = has_desc and ' -- ' or ''
+        if _name:
+            if _type:
+                if '`' in _type:
+                    field = '**%s** (%s)%s' % (_name, _type, separator)
+                else:
+                    field = '**%s** (*%s*)%s' % (_name, _type, separator)
+            else:
+                field = '**%s**%s' % (_name, separator)
+        elif _type:
+            if '`' in _type:
+                field = '%s%s' % (_type, separator)
+            else:
+                field = '*%s*%s' % (_type, separator)
+        else:
+            field = ''
+
+        if has_desc:
+            return [field + _desc[0]] + _desc[1:]
+        else:
+            return [field]
+
+    def _format_fields(self, field_type, fields):
+        field_type = ':%s:' % field_type.strip()
+        padding = ' ' * len(field_type)
+        multi = len(fields) > 1
+        lines = []
+        for _name, _type, _desc in fields:
+            field = self._format_field(_name, _type, _desc)
+            if multi:
+                if lines:
+                    lines.extend(self._format_block(padding + ' * ', field))
+                else:
+                    lines.extend(self._format_block(field_type + ' * ', field))
+            else:
+                lines.extend(self._format_block(field_type + ' ', field))
+        if lines and lines[-1]:
+            lines.append('')
+        return lines
+
+    def _get_current_indent(self, peek_ahead=0):
+        line = self._line_iter.peek(peek_ahead + 1)[peek_ahead]
+        while line != self._line_iter.sentinel:
+            if line:
+                return self._get_indent(line)
+            peek_ahead += 1
+            line = self._line_iter.peek(peek_ahead + 1)[peek_ahead]
+        return 0
+
+    def _get_indent(self, line):
+        for i, s in enumerate(line):
+            if not s.isspace():
+                return i
+        return len(line)
+
+    def _get_min_indent(self, lines):
+        min_indent = None
+        for line in lines:
+            if line:
+                indent = self._get_indent(line)
+                if min_indent is None:
+                    min_indent = indent
+                elif indent < min_indent:
+                    min_indent = indent
+        return min_indent or 0
+
+    def _indent(self, lines, n=4):
+        return [(' ' * n) + line for line in lines]
+
+    def _is_indented(self, line, indent=1):
+        for i, s in enumerate(line):
+            if i >= indent:
+                return True
+            elif not s.isspace():
+                return False
+        return False
+
+    def _is_section_header(self):
+        section = self._line_iter.peek().lower()
+        match = _google_section_regex.match(section)
+        if match and section.strip(':') in self._sections:
+            header_indent = self._get_indent(section)
+            section_indent = self._get_current_indent(peek_ahead=1)
+            return section_indent > header_indent
+        elif self._directive_sections:
+            if _directive_regex.match(section):
+                for directive_section in self._directive_sections:
+                    if section.startswith(directive_section):
+                        return True
+        return False
+
+    def _is_section_break(self):
+        line = self._line_iter.peek()
+        return (not self._line_iter.has_next() or
+                self._is_section_header() or
+                (self._is_in_section and
+                    line and
+                    not self._is_indented(line, self._section_indent)))
+
+    def _parse(self):
+        self._parsed_lines = self._consume_empty()
+
+        if self._name and (self._what == 'attribute' or self._what == 'data'):
+            self._parsed_lines.extend(self._parse_attribute_docstring())
+            return
+
+        while self._line_iter.has_next():
+            if self._is_section_header():
+                try:
+                    section = self._consume_section_header()
+                    self._is_in_section = True
+                    self._section_indent = self._get_current_indent()
+                    if _directive_regex.match(section):
+                        lines = [section] + self._consume_to_next_section()
+                    else:
+                        lines = self._sections[section.lower()](section)
+                finally:
+                    self._is_in_section = False
+                    self._section_indent = 0
+            else:
+                if not self._parsed_lines:
+                    lines = self._consume_contiguous() + self._consume_empty()
+                else:
+                    lines = self._consume_to_next_section()
+            self._parsed_lines.extend(lines)
+
+    def _parse_attribute_docstring(self):
+        _type, _desc = self._consume_inline_attribute()
+        return self._format_field('', _type, _desc)
+
+    def _parse_attributes_section(self, section):
+        lines = []
+        for _name, _type, _desc in self._consume_fields():
+            if self._config.napoleon_use_ivar:
+                field = ':ivar %s: ' % _name
+                lines.extend(self._format_block(field, _desc))
+                if _type:
+                    lines.append(':vartype %s: %s' % (_name, _type))
+            else:
+                lines.extend(['.. attribute:: ' + _name, ''])
+                field = self._format_field('', _type, _desc)
+                lines.extend(self._indent(field, 3))
+                lines.append('')
+        if self._config.napoleon_use_ivar:
+            lines.append('')
+        return lines
+
+    def _parse_examples_section(self, section):
+        use_admonition = self._config.napoleon_use_admonition_for_examples
+        return self._parse_generic_section(section, use_admonition)
+
+    def _parse_usage_section(self, section):
+        header = ['.. rubric:: Usage:', '']
+        block = ['.. code-block:: python', '']
+        lines = self._consume_usage_section()
+        lines = self._indent(lines, 3)
+        return header + block + lines + ['']
+
+    def _parse_generic_section(self, section, use_admonition):
+        lines = self._strip_empty(self._consume_to_next_section())
+        lines = self._dedent(lines)
+        if use_admonition:
+            header = '.. admonition:: %s' % section
+            lines = self._indent(lines, 3)
+        else:
+            header = '.. rubric:: %s' % section
+        if lines:
+            return [header, ''] + lines + ['']
+        else:
+            return [header, '']
+
+    def _parse_keyword_arguments_section(self, section):
+        return self._format_fields('Keyword Arguments', self._consume_fields())
+
+    def _parse_methods_section(self, section):
+        lines = []
+        for _name, _, _desc in self._consume_fields(parse_type=False):
+            lines.append('.. method:: %s' % _name)
+            if _desc:
+                lines.extend([''] + self._indent(_desc, 3))
+            lines.append('')
+        return lines
+
+    def _parse_note_section(self, section):
+        lines = self._consume_to_next_section()
+        return self._format_admonition('note', lines)
+
+    def _parse_notes_section(self, section):
+        use_admonition = self._config.napoleon_use_admonition_for_notes
+        return self._parse_generic_section('Notes', use_admonition)
+
+    def _parse_other_parameters_section(self, section):
+        return self._format_fields('Other Parameters', self._consume_fields())
+
+    def _parse_parameters_section(self, section):
+        fields = self._consume_fields()
+        if self._config.napoleon_use_param:
+            lines = []
+            for _name, _type, _desc in fields:
+                field = ':param %s: ' % _name
+                lines.extend(self._format_block(field, _desc))
+                if _type:
+                    lines.append(':type %s: %s' % (_name, _type))
+            return lines + ['']
+        else:
+            return self._format_fields('Parameters', fields)
+
+    def _parse_raises_section(self, section):
+        fields = self._consume_fields(parse_type=False, prefer_type=True)
+        field_type = ':raises:'
+        padding = ' ' * len(field_type)
+        multi = len(fields) > 1
+        lines = []
+        for _, _type, _desc in fields:
+            _desc = self._strip_empty(_desc)
+            has_desc = any(_desc)
+            separator = has_desc and ' -- ' or ''
+            if _type:
+                has_refs = '`' in _type or ':' in _type
+                has_space = any(c in ' \t\n\v\f ' for c in _type)
+
+                if not has_refs and not has_space:
+                    _type = ':exc:`%s`%s' % (_type, separator)
+                elif has_desc and has_space:
+                    _type = '*%s*%s' % (_type, separator)
+                else:
+                    _type = '%s%s' % (_type, separator)
+
+                if has_desc:
+                    field = [_type + _desc[0]] + _desc[1:]
+                else:
+                    field = [_type]
+            else:
+                field = _desc
+            if multi:
+                if lines:
+                    lines.extend(self._format_block(padding + ' * ', field))
+                else:
+                    lines.extend(self._format_block(field_type + ' * ', field))
+            else:
+                lines.extend(self._format_block(field_type + ' ', field))
+        if lines and lines[-1]:
+            lines.append('')
+        return lines
+
+    def _parse_references_section(self, section):
+        use_admonition = self._config.napoleon_use_admonition_for_references
+        return self._parse_generic_section('References', use_admonition)
+
+    def _parse_returns_section(self, section):
+        fields = self._consume_returns_section()
+        multi = len(fields) > 1
+        if multi:
+            use_rtype = False
+        else:
+            use_rtype = self._config.napoleon_use_rtype
+
+        lines = []
+        for _name, _type, _desc in fields:
+            if use_rtype:
+                field = self._format_field(_name, '', _desc)
+            else:
+                field = self._format_field(_name, _type, _desc)
+
+            if multi:
+                if lines:
+                    lines.extend(self._format_block('          * ', field))
+                else:
+                    lines.extend(self._format_block(':returns: * ', field))
+            else:
+                lines.extend(self._format_block(':returns: ', field))
+                if _type and use_rtype:
+                    lines.extend([':rtype: %s' % _type, ''])
+        if lines and lines[-1]:
+            lines.append('')
+        return lines
+
+    def _parse_see_also_section(self, section):
+        lines = self._consume_to_next_section()
+        return self._format_admonition('seealso', lines)
+
+    def _parse_warning_section(self, section):
+        lines = self._consume_to_next_section()
+        return self._format_admonition('warning', lines)
+
+    def _parse_warns_section(self, section):
+        return self._format_fields('Warns', self._consume_fields())
+
+    def _parse_yields_section(self, section):
+        fields = self._consume_returns_section()
+        return self._format_fields('Yields', fields)
+
+    def _partition_field_on_colon(self, line):
+        before_colon = []
+        after_colon = []
+        colon = ''
+        found_colon = False
+        for i, source in enumerate(_xref_regex.split(line)):
+            if found_colon:
+                after_colon.append(source)
+            else:
+                if (i % 2) == 0 and ":" in source:
+                    found_colon = True
+                    before, colon, after = source.partition(":")
+                    before_colon.append(before)
+                    after_colon.append(after)
+                else:
+                    before_colon.append(source)
+
+        return ("".join(before_colon).strip(),
+                colon,
+                "".join(after_colon).strip())
+
+    def _strip_empty(self, lines):
+        if lines:
+            start = -1
+            for i, line in enumerate(lines):
+                if line:
+                    start = i
+                    break
+            if start == -1:
+                lines = []
+            end = -1
+            for i in reversed(range(len(lines))):
+                line = lines[i]
+                if line:
+                    end = i
+                    break
+            if start > 0 or end + 1 < len(lines):
+                lines = lines[start:end + 1]
+        return lines
+
+
+class NumpyDocstring(GoogleDocstring):
+    """Convert NumPy style docstrings to reStructuredText.
+
+    Parameters
+    ----------
+    docstring : str or List[str]
+        The docstring to parse, given either as a string or split into
+        individual lines.
+    config : Optional[sphinxcontrib.napoleon.Config or sphinx.config.Config]
+        The configuration settings to use. If not given, defaults to the
+        config object on `app`; or if `app` is not given defaults to the
+        a new `sphinxcontrib.napoleon.Config` object.
+
+        See Also
+        --------
+        :class:`sphinxcontrib.napoleon.Config`
+
+    Other Parameters
+    ----------------
+    app : Optional[sphinx.application.Sphinx]
+        Application object representing the Sphinx process.
+    what : Optional[str]
+        A string specifying the type of the object to which the docstring
+        belongs. Valid values: "module", "class", "exception", "function",
+        "method", "attribute".
+    name : Optional[str]
+        The fully qualified name of the object.
+    obj : module, class, exception, function, method, or attribute
+        The object to which the docstring belongs.
+    options : Optional[sphinx.ext.autodoc.Options]
+        The options given to the directive: an object with attributes
+        inherited_members, undoc_members, show_inheritance and noindex that
+        are True if the flag option of same name was given to the auto
+        directive.
+
+    Example
+    -------
+    >>> from sphinxcontrib.napoleon import Config
+    >>> config = Config(napoleon_use_param=True, napoleon_use_rtype=True)
+    >>> docstring = '''One line summary.
+    ...
+    ... Extended description.
+    ...
+    ... Parameters
+    ... ----------
+    ... arg1 : int
+    ...     Description of `arg1`
+    ... arg2 : str
+    ...     Description of `arg2`
+    ... Returns
+    ... -------
+    ... str
+    ...     Description of return value.
+    ... '''
+    >>> print(NumpyDocstring(docstring, config))
+    One line summary.
+    <BLANKLINE>
+    Extended description.
+    <BLANKLINE>
+    :param arg1: Description of `arg1`
+    :type arg1: int
+    :param arg2: Description of `arg2`
+    :type arg2: str
+    <BLANKLINE>
+    :returns: Description of return value.
+    :rtype: str
+    <BLANKLINE>
+
+    Methods
+    -------
+    __str__()
+        Return the parsed docstring in reStructuredText format.
+
+        Returns
+        -------
+        str
+            UTF-8 encoded version of the docstring.
+
+    __unicode__()
+        Return the parsed docstring in reStructuredText format.
+
+        Returns
+        -------
+        unicode
+            Unicode version of the docstring.
+
+    lines()
+        Return the parsed lines of the docstring in reStructuredText format.
+
+        Returns
+        -------
+        List[str]
+            The lines of the docstring in a list.
+
+    """
+    def __init__(self, docstring, config=None, app=None, what='', name='',
+                 obj=None, options=None):
+        self._directive_sections = ['.. index::']
+        super(NumpyDocstring, self).__init__(docstring, config, app, what,
+                                             name, obj, options)
+
+    def _consume_field(self, parse_type=True, prefer_type=False):
+        line = next(self._line_iter)
+        if parse_type:
+            _name, _, _type = self._partition_field_on_colon(line)
+        else:
+            _name, _type = line, ''
+        _name, _type = _name.strip(), _type.strip()
+        if prefer_type and not _type:
+            _type, _name = _name, _type
+        indent = self._get_indent(line)
+        _desc = self._dedent(self._consume_indented_block(indent + 1))
+        _desc = self.__class__(_desc, self._config).lines()
+        return _name, _type, _desc
+
+    def _consume_returns_section(self):
+        return self._consume_fields(prefer_type=True)
+
+    def _consume_section_header(self):
+        section = next(self._line_iter)
+        if not _directive_regex.match(section):
+            # Consume the header underline
+            next(self._line_iter)
+        return section
+
+    def _is_section_break(self):
+        line1, line2 = self._line_iter.peek(2)
+        return (not self._line_iter.has_next() or
+                self._is_section_header() or
+                ['', ''] == [line1, line2] or
+                (self._is_in_section and
+                    line1 and
+                    not self._is_indented(line1, self._section_indent)))
+
+    def _is_section_header(self):
+        section, underline = self._line_iter.peek(2)
+        section = section.lower()
+        if section in self._sections and isinstance(underline, string_types):
+            return bool(_numpy_section_regex.match(underline))
+        elif self._directive_sections:
+            if _directive_regex.match(section):
+                for directive_section in self._directive_sections:
+                    if section.startswith(directive_section):
+                        return True
+        return False
+
+    _name_rgx = re.compile(r"^\s*(:(?P<role>\w+):`(?P<name>[a-zA-Z0-9_.-]+)`|"
+                           r" (?P<name2>[a-zA-Z0-9_.-]+))\s*", re.X)
+
+    def _parse_see_also_section(self, section):
+        lines = self._consume_to_next_section()
+        try:
+            return self._parse_numpydoc_see_also_section(lines)
+        except ValueError:
+            return self._format_admonition('seealso', lines)
+
+    def _parse_numpydoc_see_also_section(self, content):
+        """
+        Derived from the NumpyDoc implementation of _parse_see_also.
+
+        See Also
+        --------
+        func_name : Descriptive text
+            continued text
+        another_func_name : Descriptive text
+        func_name1, func_name2, :meth:`func_name`, func_name3
+
+        """
+        items = []
+
+        def parse_item_name(text):
+            """Match ':role:`name`' or 'name'"""
+            m = self._name_rgx.match(text)
+            if m:
+                g = m.groups()
+                if g[1] is None:
+                    return g[3], None
+                else:
+                    return g[2], g[1]
+            raise ValueError("%s is not a item name" % text)
+
+        def push_item(name, rest):
+            if not name:
+                return
+            name, role = parse_item_name(name)
+            items.append((name, list(rest), role))
+            del rest[:]
+
+        current_func = None
+        rest = []
+
+        for line in content:
+            if not line.strip():
+                continue
+
+            m = self._name_rgx.match(line)
+            if m and line[m.end():].strip().startswith(':'):
+                push_item(current_func, rest)
+                current_func, line = line[:m.end()], line[m.end():]
+                rest = [line.split(':', 1)[1].strip()]
+                if not rest[0]:
+                    rest = []
+            elif not line.startswith(' '):
+                push_item(current_func, rest)
+                current_func = None
+                if ',' in line:
+                    for func in line.split(','):
+                        if func.strip():
+                            push_item(func, [])
+                elif line.strip():
+                    current_func = line
+            elif current_func is not None:
+                rest.append(line.strip())
+        push_item(current_func, rest)
+
+        if not items:
+            return []
+
+        roles = {
+            'method': 'meth',
+            'meth': 'meth',
+            'function': 'func',
+            'func': 'func',
+            'class': 'class',
+            'exception': 'exc',
+            'exc': 'exc',
+            'object': 'obj',
+            'obj': 'obj',
+            'module': 'mod',
+            'mod': 'mod',
+            'data': 'data',
+            'constant': 'const',
+            'const': 'const',
+            'attribute': 'attr',
+            'attr': 'attr'
+        }
+        if self._what is None:
+            func_role = 'obj'
+        else:
+            func_role = roles.get(self._what, '')
+        lines = []
+        last_had_desc = True
+        for func, desc, role in items:
+            if role:
+                link = ':%s:`%s`' % (role, func)
+            elif func_role:
+                link = ':%s:`%s`' % (func_role, func)
+            else:
+                link = "`%s`_" % func
+            if desc or last_had_desc:
+                lines += ['']
+                lines += [link]
+            else:
+                lines[-1] += ", %s" % link
+            if desc:
+                lines += self._indent([' '.join(desc)])
+                last_had_desc = True
+            else:
+                last_had_desc = False
+        lines += ['']
+
+        return self._format_admonition('seealso', lines)
diff --git a/python/src/com/jetbrains/python/PythonHelpersLocator.java b/python/src/com/jetbrains/python/PythonHelpersLocator.java
index 56def0180bfa..7ef77e124c9f 100644
--- a/python/src/com/jetbrains/python/PythonHelpersLocator.java
+++ b/python/src/com/jetbrains/python/PythonHelpersLocator.java
@@ -19,6 +19,7 @@ import com.intellij.openapi.application.PathManager;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.util.PathUtil;
 import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
 
@@ -33,6 +34,7 @@ public class PythonHelpersLocator {
   /**
    * @return the base directory under which various scripts, etc are stored.
    */
+  @NotNull
   public static File getHelpersRoot() {
     @NonNls String jarPath = PathUtil.getJarPathForClass(PythonHelpersLocator.class);
     if (jarPath.endsWith(".jar")) {
@@ -55,7 +57,7 @@ public class PythonHelpersLocator {
    * @param resourceName a path relative to helper root
    * @return absolute path of the resource
    */
-  public static String getHelperPath(String resourceName) {
+  public static String getHelperPath(@NotNull String resourceName) {
     return getHelperFile(resourceName).getAbsolutePath();
   }
 
@@ -64,7 +66,8 @@ public class PythonHelpersLocator {
    * @param resourceName a path relative to helper root
    * @return a file object pointing to that path; existence is not checked.
    */
-  public static File getHelperFile(String resourceName) {
+  @NotNull
+  public static File getHelperFile(@NotNull String resourceName) {
     return new File(getHelpersRoot(), resourceName);
   }
 
diff --git a/python/src/com/jetbrains/python/documentation/DocStringUtil.java b/python/src/com/jetbrains/python/documentation/DocStringUtil.java
index 001d2c5070f0..d1929e609b47 100644
--- a/python/src/com/jetbrains/python/documentation/DocStringUtil.java
+++ b/python/src/com/jetbrains/python/documentation/DocStringUtil.java
@@ -22,9 +22,12 @@ import com.intellij.psi.util.PsiTreeUtil;
 import com.jetbrains.python.codeInsight.controlflow.ScopeOwner;
 import com.jetbrains.python.psi.*;
 import com.jetbrains.python.psi.impl.PyPsiUtils;
+import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.regex.Matcher;
+
 /**
  * User: catherine
  */
@@ -55,7 +58,16 @@ public class DocStringUtil {
   public static boolean isEpydocDocString(@NotNull String text) {
     return text.contains("@param ") || text.contains("@rtype") || text.contains("@type");
   }
-
+  
+  public static boolean isGoogleDocString(@NotNull String text) {
+    final Matcher matcher = GoogleCodeStyleDocString.SECTION_HEADER_RE.matcher(text);
+    if (!matcher.find()) {
+      return false;
+    }
+    @NonNls final String foundName = matcher.group(1).trim();
+    return SectionBasedDocString.SECTION_NAMES.contains(foundName.toLowerCase());
+  }
+  
   /**
    * Looks for a doc string under given parent.
    * @param parent where to look. For classes and functions, this would be PyStatementList, for modules, PyFile.
diff --git a/python/src/com/jetbrains/python/documentation/GoogleCodeStyleDocString.java b/python/src/com/jetbrains/python/documentation/GoogleCodeStyleDocString.java
index 3d0308614d1e..9be70da5b461 100644
--- a/python/src/com/jetbrains/python/documentation/GoogleCodeStyleDocString.java
+++ b/python/src/com/jetbrains/python/documentation/GoogleCodeStyleDocString.java
@@ -30,7 +30,7 @@ import java.util.regex.Pattern;
  * @author Mikhail Golubev
  */
 public class GoogleCodeStyleDocString extends SectionBasedDocString {
-  private static final Pattern SECTION_HEADER_RE = Pattern.compile("^\\s*(\\w[\\s\\w]*):\\s*$");
+  public static final Pattern SECTION_HEADER_RE = Pattern.compile("^\\s*(\\w[\\s\\w]*):\\s*$");
   private static final Pattern FIELD_NAME_AND_TYPE_RE = Pattern.compile("\\s*(.+?)\\s*\\(\\s*(.+?)\\s*\\)\\s*");
   private static final Pattern SPHINX_REFERENCE_RE = Pattern.compile("(:\\w+:\\S+:`.+?`|:\\S+:`.+?`|`.+?`)"); 
 
diff --git a/python/src/com/jetbrains/python/documentation/PyDocumentationSettings.java b/python/src/com/jetbrains/python/documentation/PyDocumentationSettings.java
index 617e9996e7c2..e89448e3d70b 100644
--- a/python/src/com/jetbrains/python/documentation/PyDocumentationSettings.java
+++ b/python/src/com/jetbrains/python/documentation/PyDocumentationSettings.java
@@ -57,6 +57,10 @@ public class PyDocumentationSettings implements PersistentStateComponent<PyDocum
   public boolean isNumpyFormat(PsiFile file) {
     return isFormat(file, DocStringFormat.NUMPY);
   }
+  
+  public boolean isGoogleFormat(PsiFile file) {
+    return isFormat(file, DocStringFormat.GOOGLE);
+  }
 
   public boolean isPlain(PsiFile file) {
     return isFormat(file, DocStringFormat.PLAIN);
@@ -82,7 +86,7 @@ public class PyDocumentationSettings implements PersistentStateComponent<PyDocum
 
   public void setFormat(String format) {
     myDocStringFormat = format;
-  }
+  }                                                                                                                                                                                                                                                                                                               
 
   @Transient
   public String getFormat() {
diff --git a/python/src/com/jetbrains/python/documentation/PyStructuredDocstringFormatter.java b/python/src/com/jetbrains/python/documentation/PyStructuredDocstringFormatter.java
index 26ed6ef45197..b4e511f1302d 100644
--- a/python/src/com/jetbrains/python/documentation/PyStructuredDocstringFormatter.java
+++ b/python/src/com/jetbrains/python/documentation/PyStructuredDocstringFormatter.java
@@ -67,27 +67,31 @@ public class PyStructuredDocstringFormatter {
     final String preparedDocstring = StringUtil.join(lines, "\n");
 
     final String formatter;
-    final TagBasedDocString structuredDocString;
-    if (documentationSettings.isEpydocFormat(element.getContainingFile()) ||
-        DocStringUtil.isEpydocDocString(preparedDocstring)) {
+    final StructuredDocString structuredDocString;
+    if (documentationSettings.isEpydocFormat(element.getContainingFile()) || DocStringUtil.isEpydocDocString(preparedDocstring)) {
       formatter = PythonHelpersLocator.getHelperPath("epydoc_formatter.py");
       structuredDocString = new EpydocString(preparedDocstring);
       result.add(formatStructuredDocString(structuredDocString));
     }
-    else if (documentationSettings.isReSTFormat(element.getContainingFile()) ||
-             DocStringUtil.isSphinxDocString(preparedDocstring)) {
+    else if (documentationSettings.isReSTFormat(element.getContainingFile()) || DocStringUtil.isSphinxDocString(preparedDocstring)) {
       formatter = PythonHelpersLocator.getHelperPath("rest_formatter.py");
       structuredDocString = new SphinxDocString(preparedDocstring);
     }
+    else if (documentationSettings.isGoogleFormat(element.getContainingFile()) || DocStringUtil.isGoogleDocString(preparedDocstring)) {
+      formatter = PythonHelpersLocator.getHelperPath("google_formatter.py");
+      structuredDocString = new GoogleCodeStyleDocString(preparedDocstring);
+    }
     else {
       return null;
     }
 
     final String output = runExternalTool(module, formatter, docstring);
-    if (output != null)
+    if (output != null) {
       result.add(0, output);
-    else
+    }
+    else {
       result.add(0, structuredDocString.getDescription());
+    }
 
     return result;
   }
diff --git a/python/src/com/jetbrains/python/documentation/SectionBasedDocString.java b/python/src/com/jetbrains/python/documentation/SectionBasedDocString.java
index 1042674b5d32..269a38b983ee 100644
--- a/python/src/com/jetbrains/python/documentation/SectionBasedDocString.java
+++ b/python/src/com/jetbrains/python/documentation/SectionBasedDocString.java
@@ -28,10 +28,7 @@ import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 /**
  * Common base class for docstring styles supported by Napoleon Sphinx extension.
@@ -66,9 +63,10 @@ public abstract class SectionBasedDocString implements StructuredDocString {
                 .put("warnings", "warnings")
                 .build();
 
-  private static ImmutableSet<String> SECTIONS_WITH_NAME_AND_TYPE = ImmutableSet.of("attributes", "methods",
-                                                                                    "parameters", "keyword arguments", "other parameters");
-  private static ImmutableSet<String> SECTIONS_WITH_TYPE = ImmutableSet.of("returns", "raises", "yields");
+  public static Set<String> SECTION_NAMES = SECTION_ALIASES.keySet();
+  private static final ImmutableSet<String> SECTIONS_WITH_NAME_AND_TYPE = 
+    ImmutableSet.of("attributes", "methods", "parameters", "keyword arguments", "other parameters");
+  private static final ImmutableSet<String> SECTIONS_WITH_TYPE = ImmutableSet.of("returns", "raises", "yields");
 
   protected final List<Substring> myLines;