在import matplotlib.pyplot as plt 出现 No module named 'PIL' 的报错，怎么办

不知道怎么 matplotlib 突然报了这个错误，之前从来没有过。

import matplotlib as mpl
import matplotlib.pyplot as plt
import numpy as np

然后就出现了以下结果

ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-7-1e03ad6f8896> in <module>
      1 import matplotlib as mpl
----> 2 import matplotlib.pyplot as plt
      3 import numpy as np

D:\anaconda\lib\site-packages\matplotlib\pyplot.py in <module>
     34 from cycler import cycler
     35 import matplotlib
---> 36 import matplotlib.colorbar
     37 import matplotlib.image
     38 from matplotlib import rcsetup, style

D:\anaconda\lib\site-packages\matplotlib\colorbar.py in <module>
     42 import matplotlib.collections as collections
     43 import matplotlib.colors as colors
---> 44 import matplotlib.contour as contour
     45 import matplotlib.cm as cm
     46 import matplotlib.gridspec as gridspec

D:\anaconda\lib\site-packages\matplotlib\contour.py in <module>
     15 import matplotlib.collections as mcoll
     16 import matplotlib.font_manager as font_manager
---> 17 import matplotlib.text as text
     18 import matplotlib.cbook as cbook
     19 import matplotlib.mathtext as mathtext

D:\anaconda\lib\site-packages\matplotlib\text.py in <module>
     14 from .font_manager import FontProperties
     15 from .patches import FancyArrowPatch, FancyBboxPatch, Rectangle
---> 16 from .textpath import TextPath  # Unused, but imported by others.
     17 from .transforms import (
     18     Affine2D, Bbox, BboxBase, BboxTransformTo, IdentityTransform, Transform)

D:\anaconda\lib\site-packages\matplotlib\textpath.py in <module>
      9 from matplotlib.font_manager import FontProperties, get_font
     10 from matplotlib.ft2font import LOAD_NO_HINTING, LOAD_TARGET_LIGHT
---> 11 from matplotlib.mathtext import MathTextParser
     12 from matplotlib.path import Path
     13 from matplotlib.transforms import Affine2D

D:\anaconda\lib\site-packages\matplotlib\mathtext.py in <module>
     25 
     26 import numpy as np
---> 27 from PIL import Image
     28 from pyparsing import (
     29     Combine, Empty, FollowedBy, Forward, Group, Literal, oneOf, OneOrMore,

ModuleNotFoundError: No module named 'PIL'

尝试了重新安装

!pip install Pillow

但是没有效果。现在再试先卸载，但是一直没有反应

我就想好好画个图/(ㄒoㄒ)/~~

你的python版本是不是3.9或者3.10的？