CODEWITHSUNDEEP
c++pythonwindowsvisual-studio-2012
Mike Vella
Mike Vella

Reputation: 10575

Setting PYTHONPATH environment variable in Visual Studio C++

I have a C++ program which imports a Python module, along the lines of this snippet:

#include <Python.h>

char python_module[] = "my_module";

Py_Initialize();
PyObject* pName;
pName = PyString_FromString(python_module);
pModule = PyImport_Import(pName);

However the module needs to be on the PYTHONPATH for this line to actually load the module. On Mac or Linux this is relatively straightforward - set PYTHONPATH on the term you are running the compiled program from. Is there a way to do this for Visual Studio C++? Setting the PYTHONPATH windows environment variable hasn't helped.

Upvotes: 4

Views: 6709

Answers (1)

vershov
vershov

Reputation: 928

Here is scheme to setup module search path:

  1. The script location; the current directory without script.
  2. The PYTHONPATH variable, if set.
  3. For Win32 platforms (NT/95), paths specified in the Registry.
  4. Default directories lib, lib/win, lib/test, lib/tkinter; these are searched relative to the environment variable PYTHONHOME, if set, or relative to the executable and its ancestors, if a landmark file (Lib/string.py) is found, or the current directory (not useful).
  5. The directory containing the executable.

You probably need to restart IDE to get it working.

Upvotes: 3

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