cannot import name 'warnings' from 'matplotlib.dates'

 

cannot import name 'warnings' from 'matplotlib.dates' (C:\Users\greg chu\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\dates.py)

pip install matplotlib==3.2.2 --user

$ python
Python 2.7.6 (default, Jan 30 2014, 20:19:23) 
[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.2.79)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>> matplotlib.__version__
'1.1.1'

import matplotlib
matplotlib.__version__
https://community.backtrader.com/topic/981/importerror-cannot-import-name-min_per_hour-when-trying-to-plot/8