[issue36085] Enable better DLL resolution

[Eryk Sun]

Eryk Sun <eryksun at gmail.com> added the comment:

> There are no specific "import" tests, because it's such a pain to set 
> those up (I need to delete files from the build directory during the 
> test, and if other tests have already used them that will fail, or I 
> need to copy the Python install elsewhere so it doesn't pick those
> up). 

Instead of copying the whole install, you should be able to symlink the core binaries (e.g. python.exe, python38.dll, python3.dll, vcruntime140.dll) to a temporary directory and set PYTHONHOME. Most (or at least some) of the build bots should be set up to grant the symlink privilege to the current user or all standard users, and %TEMP% should be on an NTFS/ReFS volume that supports reparse points.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36085>
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