remark: is it necessary to download a tar.gz version of the same wheel, if the wheel already doesn't satisfy pip ?

[stonebig]

pip master of 2021-01-15 downloads fastai-2.2.5-py3-none-any.whl then fastai-2.2.5.tar.gz (... not logical)

pip download --dest  C:\WinP\a  fastai
Collecting fastai
  Using cached fastai-2.2.5-py3-none-any.whl (191 kB)
Collecting pillow>6.0.0
  File was already downloaded c:\winp\a\Pillow-8.1.0-cp38-cp38-win_amd64.whl
Collecting matplotlib
  File was already downloaded c:\winp\a\matplotlib-3.3.3-cp38-cp38-win_amd64.whl
Collecting packaging
  File was already downloaded c:\winp\a\packaging-20.8-py2.py3-none-any.whl
Collecting scikit-learn
  File was already downloaded c:\winp\a\scikit_learn-0.24.0-cp38-cp38-win_amd64.whl
Collecting fastai
  Downloading fastai-2.2.5.tar.gz (45.5 MB)
     |██████████████████████          | 30.9 MB 1.6 MB/s eta 0:00:10

[uranusjr]

Weird, #9432 should have fixed this.

[uranusjr]

I could not reproduce this, and my resolution log is vastly different from yours. Are you sure you're on master?

[stonebig]

well, I thought I did compile from there... will check in the source in 5'

[stonebig]

ok, my bad: I used an installation where pip was not updated to latest yet.
It works with master.

sorry for the false alarm.

[uranusjr]

No problem, thanks for verifying the fix did indeed work!