CODEWITHSUNDEEP
pythonfilepython-modulepython-c-api
PeterG
PeterG

Reputation: 519

embedding python module error

So i have a c to python wrapper that takes input strings and pass them to a python function. the error im getting is that the python API is not recognizing my python file...

PyObject *pName, *pModule, *pFunc;
QString pyFile="Test.py";
Py_Initialize();
pName = PyUnicode_FromString(pyFile.toAscii().data());
pModule = PyImport_Import(pName);

error is "ImportError: No module named Test.py" This is when i have my Test.py in the same directory as my project

when i placed my Test.py up one level in my directory tree, another error came up error is "Import by filename is not supported"

so i guess absolute paths dont work? but in the first case in my example, i clearly placed my Test.py in the same directory as my project, why am i getting the error? python code is:

import sys
import os

def printFileClass(fileName, className):
    print ("The OMC CORBA File name is ", fileName,"\n")
    print ("The selected Modelica Class is ", className)
    return ("Done operations")


def main():
    print ("Hello! Here is testing script's main \n")



if __name__=='__main__':
main()

Upvotes: 1

Views: 2559

Answers (2)

Radu C
Radu C

Reputation: 1370

The PYTHONPATH environment variable can be used to fix your problem.

In your code, you can do this somewhere before Py_Initialize():

setenv("PYTHONPATH", ".", 0); // #include <stdlib.h> to get the prototype

The third parameter, 0, means overwrite - it's zero so you can also pass PYTHONPATH from the shell. If you want to always use a path that you coded, you can set that to 1.

I'm not sure this doesn't expose you to other problems, but for a simple test it works.

Also, don't include the .py extension in the module name you pass to PyImport_Import.

I tested this on a Linux system.

Upvotes: 3

kindall
kindall

Reputation: 184071

It's true in the first case there is no module named "Test.py". Your module, in the file "Test.py", is named "Test". Try importing that. "Test.py" would be the "py" submodule in a package named "Test."

Upvotes: 2

Related Questions