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Date: Mon, 01 Dec 2014 15:19:51 -0800
From: Ethan Furman <ethan@stoneleaf.us>
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To: python-list@python.org
Subject: Re: How about some syntactic sugar for " __name__ == '__main__' "?
References: <71b9a111-283f-4006-bc9d-e35782d9888c@googlegroups.com> <CAPM-O+yukMKq8m1Udcw23=kgPc6zvncfS1ohPcyme_4RXMTATg@mail.gmail.com> <CALvWhxuo8EB_FqkeUXe9nRj1CGFxrVtzw76afc21cB5=D4aZwg@mail.gmail.com> <CALwzid=i6vKUnQU1pfO3qs8H5u+_J4ff_XdkQUxt4ajN5JNYfQ@mail.gmail.com> <5464F958.4070404@stoneleaf.us>
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On 11/13/2014 10:32 AM, Ethan Furman wrote:
> On 11/12/2014 01:51 PM, Ian Kelly wrote:
>> On Wed, Nov 12, 2014 at 2:33 PM, Chris Kaynor wrote:
>>>
>>> A decorator is an interesting idea, and should be easy to implement (=
only
>>> lightly tested):
>>>
>>> def main(func):
>>>      if func.__module__ =3D=3D "__main__":
>>>              func()
>>>      return func # The return could be omitted to block the function =
from
>>> being manually called after import.
>>
>> This calls it at the wrong time, though.  [...]
>=20
> One decorator that won't call too early is atexit.register().

Well, I've tried this out, and it's only okay.  As soon as interesting th=
ings start happening, spurious errors about
thread IDs start printing, which really messes up the user experience [1]=
=2E


[1] something like Exception KeyError: KeyError(139924387112272,) in <mod=
ule 'threading' from
'/usr/lib/python2.7/threading.pyc'> ignored

--
~Ethan~


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