python - 无法从 Windows10 上的 'ft2font' 导入名称 'matplotlib'

Question

我正在使用 windows10 机器并使用 PyCharm 作为我的 IDE，所以当我尝试运行以下代码时，它显示以下错误

我尝试卸载并重新安装 matplotlib，也有人建议使用 --force reinstall，但没有成功

昨天之前一切正常

import matplotlib.pyplot as plt
import numpy as np

 rng = np.random.RandomState(42)
 X = 10 * rng.rand(50)
 y = 2 * X - 1 + rng.randn(50)

plt.scatter(X, y)
plt.show()

在 Pycharm 和 Vs Code 上都显示错误

Traceback (most recent call last):
File "D:/PyCharm/exercise/numpy_exercise/pandas_py.py", line 1, in 
<module>
import matplotlib.pyplot as plt
File "C:\Users\smile\AppData\Roaming\Python\Python37\site- 
packages\matplotlib\__init__.py", line 143, in <module>
from matplotlib import ft2font
ImportError: cannot import name 'ft2font' from 'matplotlib' 
 (C:\Users\smile\AppData\Roaming\Python\Python37\site- 
 packages\matplotlib\__init__.py)

 Error showing on Jupyter Notebook

<ipython-input-1-1842680e3d86> in <module>
  1 import pandas as pd
  2 import numpy as np
    ----> 3 import matplotlib.pyplot as plt
  4 get_ipython().run_line_magic('matplotlib', 'inline')
  5 

 ~\AppData\Roaming\Python\Python37\site-packages\matplotlib\pyplot.py in 
 <module>
 30 from cycler import cycler
 31 import matplotlib
   ---> 32 import matplotlib.colorbar
 33 import matplotlib.image
 34 from matplotlib import rcsetup, style

 ~\AppData\Roaming\Python\Python37\site-packages\matplotlib\colorbar.py 
 in <module>
 25 
 26 import matplotlib as mpl
 ---> 27 import matplotlib.artist as martist
 28 import matplotlib.cbook as cbook
 29 import matplotlib.collections as collections

 ModuleNotFoundError: No module named 'matplotlib.artist'

Answer 1

我有一个类似的问题，通过强制重新安装 matplotlib 简单地解决了:

python -m pip install -I matplotlib

• python -m pip 而不是 pip install 以确保使用正确的 python 可执行文件
• -I 强制重新安装