Antoine Pitrou wrote:

Did your coworker run any timings instead of basing his assumptions on bytecode
size?

In any case, what are you suggesting -- that the last value
returned by a function call in the body should be the
default return value?

I don't think the unpredictability that would introduce
would be a good idea.

Never mind the fact that there is a lot of Python code out there that assumes that functions without an explicit return value, return None.

This is pretty fundamental to the Python API.

-jake