Why does my program work with a .py extension but not with a .pyw extension?

Question

I have a script that converts Google Earth .kml / .kmz files to shapefiles with a simple GUI interface written in Tkinter.

My problem is t

Answer 1

.pyw files are run differently than .py files -- they are associated with a different interpreter, pythonw.exe instead of python.exe, which doesn't have a console associated with it.

According to some sources, including this old mailing list thread some operations don't work without a console.

Without seeing the exact script, we can't know exactly is causing the problem for pythonw.