Importing a custom module from a custom-built Python fails

Question

I've a weird problem. I'm setting up a project with an embedded Python interpreter. I've rebuilt Python from the sources (3.3.2) and then copied the Python libs as well as the .DLL into my application redistribution folder.

The weird stuff is that, while I'm being able to import a .py module, my recompiled interpreter fails to import a .pyd custom-built file. The same file imports file launching the interpreter from a Python regular distribution.

This is my code:

Py_SetPythonHome((wchar_t *)wideBasePath.c_str());
Py_InitializeEx(0);
PyRun_SimpleString("import MClientAPI");

It fails stating unable to find MClientAPI, while I have a _MClientAPI.pyd file available. I've tried to move it either under site-packages, libs or the root folder with no difference.

Any advice?

Importing MClientAPI won't load _MClientAPI.pyd, it'll load MClientAPI.pyd. Do you have a pure python implementation which loads the _ version and then fails to itself called MClientAPI.py? That's the normal reason for such a naming scheme. — Gareth Latty
– Gareth Latty, Commented Jun 11, 2013 at 12:45
Sorry that was a typo error. Even using import _MClientAPI fails.. — Leonardo Bernardini
– Leonardo Bernardini, Commented Jun 11, 2013 at 14:36

Leonardo Bernardini · Accepted Answer · 2013-06-11 14:54:50Z

2

Well I discovered that, if you want to import a pyd file and you're in debug mode, no matter what you type, Python will always look for a _d postfixed file, in my case MClientAPI_d.pyd

answered Jun 11, 2013 at 14:54

Leonardo Bernardini

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2 Comments

Seth Over a year ago

Is the '_d' requirement documented somewhere? I've spent the better part of the morning scratching my head on this.

Leonardo Bernardini Over a year ago

Never found a documented thing about that, have to solve it alone :D

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