如下两种import方式都报错
matplot版本是matplotlib-2.2.2-cp36-cp36m-win_amd64.whl
网上说matplotlib2.0.2之后没有matplotlib.finance，改成mpl_finance了。但mpl_finance里没有quotes_historical_yahoo，如何解决呢？
1. from matplotlib.finance import quotes_historical_yahoo
Traceback (most recent call last):
File "pair.py", line 2, in
from matplotlib.finance import quotes_historical_yahoo
ModuleNotFoundError: No module named 'matplotlib.finance'
提示matplotlib下面没有finance了
2. from mpl_finance import quotes_historical_yahoo_ochl
Traceback (most recent call last):
File "pair.py", line 4, in
from mpl_finance import quotes_historical_yahoo_ochl
ImportError: cannot import name 'quotes_historical_yahoo_ochl'
改用mpl_finance，但里面没有quotes_historical_yahoo 或 quotes_historical_yahoo_ochl
