Philippe Ombredanne <pombreda...@nexb.com> added the comment:

>From https://bugs.python.org/issue41836 closed as a dupe of this:

When the dependency of a DLL is missing (at least on Windows) the error " 
OSError: [WinError 126] The specified module could not be found" is raised when 
calling ctypes.CDLL(dll_path) even when this "dll_path" exists... because the 
error comes from another DLL.

These errors are really hard to diagnose because the path of the missing DLL is 
not returned in the exception message. Returning it would help fixing these 
kind of errors quickly.

Researching errors such as this one 
https://github.com/nexB/scancode-toolkit/issues/2236 wastes quite a bit of time 
and would be made a non issue if we had the path in the error message.


and this reply from Eric Smith: https://bugs.python.org/msg377324

> Author: Eric V. Smith (eric.smith) * (Python committer)       Date: 
> 2020-09-22 14:13

> My understanding is that Windows doesn't tell you which DLL is missing. I 
> think the best we could do is append something to the error message saying 
> "or one its dependencies".

----------
nosy: +pombredanne

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