Should I put #! (shebang) in Python scripts, and what form should it take?

Question

Should I put the shebang in my Python scripts? In what form?

#!/usr/bin/env python 

or

Answer 1

It's really just a matter of taste. Adding the shebang means people can invoke the script directly if they want (assuming it's marked as executable); omitting it just means python has to be invoked manually.

The end result of running the program isn't affected either way; it's just options of the means.