Code Template for a Pop-up Menu?

[bluepython]

Yeah it should be UI Menu or UI Menu Simple, under the Templates>>Python dropdown in the Text Editor window.

These might also help for getting it up and running:

Blender Python Tutorial : An Introduction to Scripting [how to learn python for beginners]

Blender Python Tutorial : Enumerator / Drop down Menu [learn python for beginners]

Blender Python Tutorial : Create a popup dialog box [learn python for beginners]