When I try to run “import matplotlib.pyplot as plt”, I receive the following error: “ModuleNotFoundError: No module named 'PIL'”

Question

EDIT: I noticed that this problem only occurs when I'm using Jupyter Notebook. When I tried to use Google Colab, it worked fine. Is there a way to resolve this issue?

I tried uninstalling and installing pillow, image, and even matplotlib, but I keep receiving the same error. Note that when I try to run "import image", "import pil" and "import matplotlib", they all worked fine.

This is the exact message:

ModuleNotFoundError Traceback (most recent call last)

in

  5 import matplotlib.pyplot as plt

~\Anaconda3\lib\site-packages\matplotlib\pyplot.py in

 34 from cycler import cycler
 35 import matplotlib
 36 import matplotlib.colorbar
 37 import matplotlib.image
 38 from matplotlib import rcsetup, style

~\Anaconda3\lib\site-packages\matplotlib\colorbar.py in

 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

~\Anaconda3\lib\site-packages\matplotlib\contour.py in

 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

~\Anaconda3\lib\site-packages\matplotlib\text.py in

 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)

~\Anaconda3\lib\site-packages\matplotlib\textpath.py in

  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

~\Anaconda3\lib\site-packages\matplotlib\mathtext.py in

 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'

Answer 1

Try importing like this

import PIL as Image

Answer 2

It's import PIL not import pil . Normally you should also be able to see which line causes the error. There is nothing wrong with the matplotlib import that you mentioned.

Answer 3

1. First, install PIL through command line python -m pip install pillow .

2. Second, use it, do in your script from PIL import Image .

Answer 4

I found that this issue only occurred when using Jupyter Notebook, so after several tries I uninstalled Anaconda and reinstalled it and now it works.