Cannot import matplotlib, vscode says 'no module named matplotlib'

Question

I am unable to import matplotlib or numpy.

trying to import the packages through cmd (opening a python console in cmd) and vscode throw different errors.

cmd error

 ** On entry to DGEBAL parameter number  3 had an illegal value
 ** On entry to DGEHRD  parameter number  2 had an illegal value
 ** On entry to DORGHR DORGQR parameter number  2 had an illegal value
 ** On entry to DHSEQR parameter number  4 had an illegal value
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\as116\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\__init__.py", line 107, in <module>
    from . import cbook, rcsetup
  File "C:\Users\as116\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\cbook\__init__.py", line 28, in <module>
    import numpy as np
  File "C:\Users\as116\AppData\Local\Programs\Python\Python38\lib\site-packages\numpy\__init__.py", line 305, in <module>
    _win_os_check()
  File "C:\Users\as116\AppData\Local\Programs\Python\Python38\lib\site-packages\numpy\__init__.py", line 302, in _win_os_check
    raise RuntimeError(msg.format(__file__)) from None
RuntimeError: The current Numpy installation ('C:\\Users\\as116\\AppData\\Local\\Programs\\Python\\Python38\\lib\\site-packages\\numpy\\__init__.py') fails to pass a sanity check due to a bug in the windows runtime. See this issue for more information: <tiniyurl not allowed to post here>

vscode error

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'matplotlib'

I was experiencing multiple problems (regarding python and vscode)for unknown reasons and I had an assignment to complete so I had to reset (windows function which allows to keep personal files but removes apps) my pc today. I installed python 3.9 but uninstalled it and installed python 3.8.6 while trying find out the errors.

I could not install matplotlib and numpy at all before resetting my pc.

Answer 1

I had the same problem when using numpy1.19.4.

Installed 1.19.3 and worked...

From this thread How do you fix "runtimeError: package fails to pass a sanity check" for numpy and pandas? "This error occurs when using python3.9 and numpy1.19.4 So uninstalling numpy1.19.4 and installing 1.19.3 will work."