On Tue, Oct 20, 2020 at 8:06 PM Michael Smith <mich...@smith-li.com> wrote:

> On Tue, Oct 20, 2020 at 10:19 PM Guido van Rossum <gu...@python.org>
> wrote:
> >
> > I think it would be a tad more convincing if there was a way to pass
> arguments too (even if just a list of strings). At the very least extra
> arguments should end up in sys.argv[1:].
>
> Could python -m 'module:thunk' have exactly the same behavior with
> respect to arguments as `python3.8 -m module` does today?
>
> ```
> $ cat bar.py
> import pprint, sys
>
> def thunk():
>     pprint.pprint(sys.argv)
>
> if __name__ == "__main__":
>     thunk()
>
> $ python3.8 -m bar -- -1 --two --three=3
> ['/Users/michael/bar.py', '--', '-1', '--two', '--three=3']
> ```
>
> So then with the same bar.py, `python -m bar:thunk -- -2 --three
> --four=4` would print `['/Users/michael/bar.py', '--', '-1', '--two',
> '--three=3']`. I like this better than my previous suggestion to
> shorthand python -c.
>

Actually it should print the same except for sys.argv[0]. (We could argue
about what sys.argv[0] should be.)


> > Then again, presumably the function must be specially crafted for this
> usage. Why can't you just specially craft a module's main()?
>
> I'm not sure I know what you mean by "specially crafted", other than
> the function only needs not require any formal parameters. It doesn't
> need to be special-er than that. It can handle args via sys.argv, as
> you suggested. Most of the `main` functions I write today are just
> like that.
>

Okay, so this is just a way to choose an alternative main() function.

I'm kind of meh at this point, I'll leave it to the usual crowd. :-)

-- 
--Guido van Rossum (python.org/~guido)
*Pronouns: he/him **(why is my pronoun here?)*
<http://feministing.com/2015/02/03/how-using-they-as-a-singular-pronoun-can-change-the-world/>
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