pypa / pypa/setuptools

v46.0: cannot find MSVC on 32 bits python

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Description

on a 32 bits win7 with python 3.6 32 bits and MSVC 2017, setuptools v 46.0 cannot find MSVC:

error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio": https://visualstudio.microsoft.com/downloads/

It worked OK with setuptools 45.2 (did not test with 45.3), and 46.0 is working with python 64 bits on a 64 bits machine.

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Research direction

Reproduce the failure with 32-bit Python 3.6 on 32-bit Windows 7 and MSVC 2017, then compare setuptools 46.0 with 45.2. Trace the MSVC detection entry point and verify that the 32-bit environment locates the installed compiler without breaking the working 64-bit case.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
build-system
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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