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Title: numpy, scipy packages failed to install via pip - Windows 10 Pro 64 bit
Type: behavior Stage: resolved
Components: Extension Modules, Installation, Windows Versions: Python 3.9
Status: closed Resolution: third party
Dependencies: Superseder:
Assigned To: Nosy List: christian.heimes, jugmac00, paul.moore, steve.dower, tim.golden, tma, zach.ware
Priority: normal Keywords:

Created on 2020-10-09 05:10 by tma, last changed 2022-04-11 14:59 by admin. This issue is now closed.

Messages (3)
msg378303 - (view) Author: Thomas M. Alldread (tma) Date: 2020-10-09 05:10
Several attempts to install numpy/scipy packages failed. Pip reported pages of error information. Reverting back to version 3.8.5 resolved the issue using the exact same procedure.
msg378304 - (view) Author: Jürgen Gmach (jugmac00) * Date: 2020-10-09 06:20
While e.g. numpy already shows Python 3.9 support on their GitHub repository ( ), there is no Python 3.9 compatible package on PyPI yet ( ).

I guess you have to wait a bit more until there will be a new release.

Also, this is the cpython issue tracker. When you have problems with a specific package, it is best to seek help at their issue tracker. For numpy this would be

Actually, there is already an issue on their tracker about support for Python 3.9

I suggest to close this issue here.
msg378306 - (view) Author: Christian Heimes (christian.heimes) * (Python committer) Date: 2020-10-09 07:23
As Jürgen said numpy does not provide binaries for Python 3.9 yet. Please report the issue with numpy and request builds for Python 3.9.
Date User Action Args
2022-04-11 14:59:36adminsetgithub: 86144
2020-10-09 07:23:10christian.heimessetstatus: open -> closed

nosy: + christian.heimes
messages: + msg378306

resolution: third party
stage: resolved
2020-10-09 06:20:16jugmac00setnosy: + jugmac00
messages: + msg378304
2020-10-09 05:10:30tmacreate