On 11/12/2014 6:26 PM, Chris Angelico wrote:
On Thu, Nov 13, 2014 at 10:19 AM, Terry Reedy <tjre...@udel.edu> wrote:
Functions have an implicit 'return None' at the end (which, in CPython,
become an explicit pair of bytecodes, even when the function already ends
with return something'. The simplest proposal is that modules have an
implicit "if __name__ == '__main__': main()" at the end. I think this would
not have to be added to the bytecode.
This magical invocation mimics C and some other languages, and I think it
works well.
Yes, but it conflicts with the existing and common usage of having
that explicitly in the code.
Yeh, calling main twice could be a problem.
Safer - and more in line with the way
other such functions are written - would be a dunder function:
if __name__ == '__main__': __main__()
I presume you mean that calling __main__ implicitly would be both
consistent and safer. No code should be using that now.
--
Terry Jan Reedy
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