Study python You want to use python Of matlabplot Drawing function , There are a lot of problems , And then all the way through , Final installation successful , It's not easy , Post in memory of .

1 Start by opening cmd

win+r

2 pip install

pip3 install --user numpy scipy matplotlib

–user Option can be set to install only under the current user , Instead of writing to the system directory . By default, foreign lines are used , It's too slow abroad , We can use the image of Tsinghua University :

pip3 install numpy scipy matplotlib -i https://pypi.tuna.tsinghua.edu.cn/simple

How the network is not good , We can install them one by one

pip3 install numpy s -i https://pypi.tuna.tsinghua.edu.cn/simple

pip3 install scipy -i https://pypi.tuna.tsinghua.edu.cn/simple

pip3 install matplotlib -i https://pypi.tuna.tsinghua.edu.cn/simple

3 install matlabplot When you encounter an error ：

Using legacy 'setup.py install' for matplotlib, since package 'wheel' is not installed.
Installing collected packages: matplotlib
Running setup.py install for matplotlib ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\diouf.guo\appdata\local\programs\python\python39\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Diouf.Guo\\AppData\\Local\\Temp\\pip-install-thjn2jbc\\matplotlib\\setup.py'"'"'; __file__='"'"'C:\\Users\\Diouf.Guo\\AppData\\Local\\Temp\\pip-install-thjn2jbc\\matplotlib\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\Diouf.Guo\AppData\Local\Temp\pip-record-kay5nve4\install-record.txt' --single-version-externally-managed --compile --install-headers 'c:\users\diouf.guo\appdata\local\programs\python\python39\Include\matplotlib'

Check out your python edition ：

Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license()" for more information.

my python yes 3.9 AMD64

stay https://www.lfd.uci.edu/~gohlke/pythonlibs/ Website found worldcould

Choose your own .whl download . My choice ：

wordcloud-1.8.0-cp39-cp39-win_amd64.whl

Then back cmd

4 install

pip install wordcloud-1.8.0-cp39-cp39-win_amd64.whl

5 There was a mistake again

Using legacy 'setup.py install' for matplotlib, since package 'wheel' is not installed.

Direct installation wheel

pip install wheel

6 Re install matlabplot

pip3 install matplotlib -i https://pypi.tuna.tsinghua.edu.cn/simple

You don't succeed

7 stay https://www.lfd.uci.edu/~gohlke/pythonlibs/ find matlabplot

Download and install ,

pip3 install matplotlib-3.3.2-cp39-cp39-win_amd64.whl

Show installation success , Find a program to try it out ：

import numpy as np
from matplotlib import pyplot as plt
x = np.arange(1,11)
y = 2 * x + 5
plt.title("Matplotlib demo")
plt.xlabel("x axis caption")
plt.ylabel("y axis caption")
plt.plot(x,y)
plt.show()

Installation successful , A wave of 50% off