AttributeError when embedding python in C++ (Ubuntu)

Question content

I have a c program embedded in python3.11.2. When calling a python script from embedded python (importing 3rd party modules as well as standard library modules), I get the following error:

excType: 'AttributeError'
excValue: AttributeError("module 'abc' has no attribute '__file__'")
excTraceback: <traceback object at 0x7f1e48c5f200>

When I run the script from normal (non-embedded) python, everything works fine and I am also able to find the file attributes for the abc module.

I compiled python3.11.2 from source using the following configuration: --enable-optimizations --enable-shared --prefix="path/to/my/custom/build/folder/

The weird thing is that every 3rd party module my script imports has a file attribute and loads fine.

Does anyone have any insight into what could be causing this?

My operating system: ubuntu 22.04.3

I tested other standard library modules such as os. If I call a function in the OS from embedded python, it works fine, but the file attribute of the OS is not found. If I do this from non-embedded python, it does find the file attribute.

Update: I just discovered that embedded python has an empty prefix. How can I change this prefix? Setting pythonhome doesn't change anything.

Correct answer

I found the solution by manually adding the file attribute of the module. I still don't understand why the file property is not set by default, but this works for me now.

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