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BUG: detect buggy windows version and raise at import#17553

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mattip wants to merge 4 commits into
numpy:masterfrom
mattip:issue16744
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BUG: detect buggy windows version and raise at import#17553
mattip wants to merge 4 commits into
numpy:masterfrom
mattip:issue16744

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@mattip mattip commented Oct 14, 2020

xref gh-16744. Use a check at import to make sure we are not sensitive to the fmod bug in windows. Alternative to gh-17547.

@bashtage could you check if these PRs works as advertised?

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bashtage commented Oct 14, 2020

Does what it says.

In [1]: import numpy as np
---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
<ipython-input-1-0aa0b027fcb6> in <module>
----> 1 import numpy as np

c:\anaconda\envs\python-pip\lib\site-packages\numpy\__init__.py in <module>
    374
    375     if sys.platform == "win32" and sys.maxsize > 2**32:
--> 376         _win_os_check()
    377
    378     del _mac_os_check

c:\anaconda\envs\python-pip\lib\site-packages\numpy\__init__.py in _win_os_check()
    371                    "See this issue for more information "
    372                    "https://developercommunity.visualstudio.com/content/problem/1208774/fpu-exception-in-fmod0-x-in-windows-10-version-200.html")
--> 373             raise RuntimeError(msg.format(__file__)) from None
    374
    375     if sys.platform == "win32" and sys.maxsize > 2**32:

RuntimeError: The current Numpy installation ('c:\\anaconda\\envs\\python-pip\\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 https://developercommunity.visualstudio.com/content/problem/1208774/fpu-exception-in-fmod0-x-in-windows-10-version-200.html

bashtage
bashtage reviewed Oct 14, 2020
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Comment thread numpy/__init__.py Outdated
eric-wieser
eric-wieser reviewed Oct 14, 2020
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Comment thread numpy/__init__.py Outdated
mattip and others added 2 commits October 14, 2020 13:27
@mattip @eric-wieser
Update numpy/__init__.py
4583b1c 
Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
@mattip @eric-wieser
Update numpy/__init__.py
536f897 
Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
@charris charris added the 09 - Backport-Candidate PRs tagged should be backported label Oct 14, 2020
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bashtage commented Oct 14, 2020

Maybe you need to make the exception more explicit?

mattip
mattip commented Oct 14, 2020
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mattip commented Oct 14, 2020

@bashtage if you could try it again that would be great. There were various typos and mistakes in the original version.

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bashtage commented Oct 14, 2020

@mattip Still does the job.

@charris charris mentioned this pull request Oct 19, 2020
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pv commented Oct 21, 2020

Maybe this is OK to merge, even if also gh-17547 gets in? Import-time sanity check probably can't hurt, in case similar bug gets reintroduced in another Windows update.

@mattip mattip added the triage review Issue/PR to be discussed at the next triage meeting label Oct 21, 2020
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mattip commented Oct 29, 2020

Since OpenBLAS 0.3.12 avoids using the messed-up registers, this check is no longer relevant. Closing.

@mattip mattip closed this Oct 29, 2020
@charris charris reopened this Oct 29, 2020
charris
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Comment thread numpy/__init__.py
_win_os_check()

del _win_os_check

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@charris charris Oct 29, 2020

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I think there are some hard tabs in here.

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charris reviewed Oct 29, 2020
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Comment thread numpy/__init__.py
msg = ("The current Numpy installation ({!r}) fails to "
"pass a sanity check due to a bug in the windows runtime. "
"See this issue for more information "
"https://developercommunity.visualstudio.com/content/problem/1208774/fpu-exception-in-fmod0-x-in-windows-10-version-200.html")
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@charris charris Oct 29, 2020

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2004, not 200?

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@bashtage bashtage Oct 29, 2020

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The URL is correct, despite missing the 4.

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@charris charris Oct 30, 2020

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NVM.

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@charris charris Oct 30, 2020

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I used "https://tinyurl.com/y3dm3h86" instead.

@charris charris mentioned this pull request Oct 30, 2020
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@mattip mattip removed the triage review Issue/PR to be discussed at the next triage meeting label Nov 4, 2020
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wonkodv commented Nov 7, 2020

Hi, I came here from a pip installation that is refusing to work now, looking for a workaround, but did not find anything.

Am I correct in saying, that this is not a problme on 32 bit python?

If so, I would ask you to change the error message so that it links to this wiki page I just made instead of to the visual studio bugtracker.

https://github.com/numpy/numpy/wiki/FMod-Bug-on-Windows

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bashtage commented Nov 7, 2020

You are correct that there is no issue on 32 but windows. The best workarounds are to either use WSL or 32 bit. Neither has the fmod bug.

@charris charris removed the 09 - Backport-Candidate PRs tagged should be backported label Nov 14, 2020
@mattip mattip closed this Dec 17, 2020
@mattip mattip deleted the issue16744 branch April 8, 2021 11:13
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