[DS-5285] implemented statistic tooltip for tables in console

[DS-5285] made get_value_counts in polars return empty string instead of None

[DS-5285] implemented statistic tooltip for tables in console


Merge-request: IJ-MR-112213
Merged-by: Georgii Zorabov <georgii.zorabov@jetbrains.com>

GitOrigin-RevId: 2099a4b284d2c8d7163238abee78b6ef409fe89a

python/helpers/pydev/_pydevd_bundle/pydevd_tables.py

@@ -12,6 +12,7 @@ MAX_COLWIDTH = 200
 class TableCommandType:
     DF_INFO = "DF_INFO"
     SLICE = "SLICE"
+    DESCRIBE = "DF_DESCRIBE"
 
 
 def is_error_on_eval(val):
@@ -45,6 +46,11 @@ def exec_table_command(init_command, command_type, start_index, end_index, f_glo
         res.append(NEXT_VALUE_SEPARATOR)
         res.append(table_provider.get_column_types(table))
 
+    elif command_type == TableCommandType.DESCRIBE:
+        res.append(table_provider.get_column_descriptions(table, MAX_COLS, MAX_COLWIDTH))
+        res.append(NEXT_VALUE_SEPARATOR)
+        res.append(table_provider.get_value_counts(table, MAX_COLS, MAX_COLWIDTH))
+
     elif command_type == TableCommandType.SLICE:
         res.append(table_provider.get_data(table, MAX_COLS, MAX_COLWIDTH, start_index, end_index))
 

python/helpers/pydev/_pydevd_bundle/tables/pydevd_polars.py

@@ -57,7 +57,7 @@ def get_column_descriptions(table, max_cols, max_colwidth):
 # Polars compute NaN-s in describe. So, we don't need get_value_counts for Polars
 def get_value_counts(table, max_cols, max_colwidth):
     # type: (Union[pl.DataFrame, pl.Series], int, int) -> str
-    return
+    return ""
 
 
 def __get_describe(table):

python/pydevSrc/com/jetbrains/python/debugger/pydev/TableCommand.kt

@@ -36,5 +36,5 @@ class TableCommand(debugger: RemoteDebugger?,
 }
 
 enum class TableCommandType {
-  DF_INFO, SLICE
+  DF_INFO, SLICE, DF_DESCRIBE
 }