Pandas DOC:fix EX02 plot.line and parallel_coordinates

          Hi I'm going to work on:

pandas.plotting.parallel_coordinates and pandas.DataFrame.plot.line

Originally posted by @zgdjcls in https://github.com/pandas-dev/pandas/issues/51236#issuecomment-1444250238 But when I run the docstrings I got this error: Partially validate docstrings (EX02) :1: PerformanceWarning: indexing past lexsort depth may impact performance. df.xs(('mammal', 'dog')) Traceback (most recent call last): File "/Users/zhengyiming/Desktop/pandas/./ci/../scripts/validate_docstrings.py", line 494, in main( File "/Users/zhengyiming/Desktop/pandas/./ci/../scripts/validate_docstrings.py", line 429, in main return print_validate_all_results( File "/Users/zhengyiming/Desktop/pandas/./ci/../scripts/validate_docstrings.py", line 373, in print_validate_all_results result = validate_all(prefix, ignore_deprecated, ignore_functions) File "/Users/zhengyiming/Desktop/pandas/./ci/../scripts/validate_docstrings.py", line 329, in validate_all for func_name, _, section, subsection in get_all_api_items(): File "/Users/zhengyiming/Desktop/pandas/./ci/../scripts/validate_docstrings.py", line 360, in get_all_api_items yield from get_api_items(f) File "/Users/zhengyiming/Desktop/pandas/./ci/../scripts/validate_docstrings.py", line 137, in get_api_items func = getattr(func, part) AttributeError: type object 'CombinedDatetimelikeProperties' has no attribute 'unit' Partially validate docstrings (EX02) DONE

I'm not sure why it says 'CombinedDatetimelikeProperties' has no attribute 'unit', is this my environment issue? How should I fix this

Comment From: MarcoGorelli

Hi - my guess is that you didn't follow everything in https://pandas.pydata.org/docs/dev/development/contributing_environment.html ?

Comment From: MarcoGorelli

closing as per https://github.com/pandas-dev/pandas/issues/51236#issuecomment-1448961676