190a55438e
typing.Generic is a magical class that can be specified in any position
in the list of base classes, not affecting the MRO consistency. It's done by
the custom __mro_entries__ implementation in typing._BaseGenericAlias (Python < 3.12),
which skips this Generic entry if there are other generic classes following
it on the list of superclasses. Namely, it's possible to do the following:
```
class Base(Generic[T]):
pass
class MyClass(Generic[T], Base[T]):
pass
```
which would cause a TypeError for regular classes. Since it broke our implementation
of the C3 algorithm in PyClassImpl.getMROAncestorTypes, we now special-case it by
always moving typing.Generic to the very end of the base class list while constructing
MRO.
See https://github.com/python/cpython/blob/3.11/Lib/typing.py#L1298 for a pure-Python
version of typing._BaseGenericAlias.__mro_entries__ and a relevant discussion in
https://github.com/python/cpython/issues/106102.
GitOrigin-RevId: e7d765193d532ab8457133e8fb5ad06840d89225
PyCharm Community Edition
The "python" directory in the source repository contains the source code of PyCharm Community Edition and the Python plugin for IntelliJ IDEA Community Edition.
Building and Running
The code is part of the main IntelliJ IDEA Community Edition project and is compiled together with the rest of the codebase. To run PyCharm Community Edition, please use the provided run configuration "PyCharm Community Edition". To run IntelliJ IDEA with the Python plugin, please use the "IDEA with Python plugin" run configuration.
To run the test suite, use the built-in JUnit test runner and run all tests in the "python-community-tests" module.
Building from the Command Line
To build the distribution archive of PyCharm Community Edition, execute build.xml Ant build script in this directory. The results of the build execution can be found at out/artifacts.
Building the Python Plugin
To build the Python plugin for IntelliJ IDEA Community Edition:
-
Download the .tar.gz distribution of the most recent EAP or release build of IntelliJ IDEA Community Edition;
-
Run the following command:
ant -Didea.path= -Didea.build.number=<build number of the build you're using> plugin
The .zip file of the built plugin will be placed at distCE/python-community-.SNAPSHOT.zip