Deep vs. shallow copy?

Marko Rauhamaa marko at
Thu Mar 13 13:27:48 CET 2014

Roy Smith <roy at>:

>  Steven D'Aprano <steve+comp.lang.python at> wrote:
>> Because Python doesn't have true procedures
> What do you mean by "true procedure"? Are you just talking about
> subroutines that don't return any value, i.e. fortran's SUBROUTINE vs.

Ah, the "no true procedure" argument:

 - No true procedure returns a value.

 - That's false. Python's procedures return None.

 - They are not true procedures.


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