Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
If all you want to do is trigger Python scripts from a GUI interface, you can use a macro program like Keyboard Maestro to do this. Just set up a macro for each script and trigger them via the macro palette.

Alternatively, you can just put all of the scripts in ~/Library/Scripts, and they'll appear under the Script menubar item, which you can enable in the preferences for AppleScript Editor.

A third option would be to bake each scripts into a separate application using Platypus, then just launch them like any other app.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.