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並前往https://community.backtrader.com/topic/2784/cannot-import-name-warnings-from-matplotlib-dates

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

9 Mar 2021, 16:32. MacOS big Sur python 3.9.2 matplotlib 3.3.4 backtrader 1.9.76.123. Change /usr/local/lib/python3.9/site-packages/backtrader/plot/locator.py.

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