Question

How can I detect in my python script if its being run by the debug interpreter (ie python_d.exe rather than python.exe)? I need to change the paths to some dlls that I pass to an extension.

eg Id like to do something like this at the start of my python script:

#get paths to graphics dlls if debug_build:     d3d9Path   = 'bin\\debug\\direct3d9.dll'     d3d10Path  = 'bin\\debug\\direct3d10.dll'     openGLPath = 'bin\\debug\\openGL2.dll' else:     d3d9Path   = 'bin\\direct3d9.dll'     d3d10Path  = 'bin\\direct3d10.dll'     openGLPath = 'bin\\openGL2.dll' 

I thought about adding an ‘IsDebug()’ method to the extension which would return true if it is the debug build (ie was built with ‘#define DEBUG’) and false otherwise. But this seems a bit of a hack for somthing Im sure I can get python to tell me…

Answer 1

Distutils use sys.gettotalrefcount to detect a debug python build:

# ... if hasattr(sys, 'gettotalrefcount'):    plat_specifier += '-pydebug' 

• this method doesn’t rely on an executable name ‘*_d.exe‘. It works for any name.
• this method is cross-platform. It doesn’t depend on ‘_d.pyd‘ suffix.

See Debugging Builds and Misc/SpecialBuilds.txt