On 5 Des, 12:55, Andreas Waldenburger <use...@geekmail.invalid> wrote:
> Can you please elaborate? To me, a function is something that > transforms some input to some output [1]. Which is exactly what Python > functions do, without fail. A mathematical function cannot have side effects. That is what functional languages strive for. However, without allowing side- effects, how can you control hardware (printer, file i/o, etc.)? A Python callable is never a computer science "routine", as it always returns a value. If no value is explicitely returned, it will silently return None. All Python callables are functions. Also in C, calling a void function "routine" is dubious. Fortran and Basic have a destinction between functions and routines, however. -- http://mail.python.org/mailman/listinfo/python-list
