[Python-ideas] Default arguments in Python - the return - running out of ideas but...

[Tennessee Leeuwenburg]

A thought from another direction...

Any chance we could have the interpreter raise a warning for the case

def foo(a = []):
  #stuff

?

The empty list and empty dict args would, I imagine, be the two most common
mistakes. Showing a warning might, at least, solve the problem of people
tripping over the syntax.

Cheers,
-T
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