[Python-Dev] PEP 441 - Improving Python ZIP Application Support

[Barry Warsaw]

On Feb 17, 2015, at 08:52 PM, Paul Moore wrote:

>I'm pretty sure that's the way the general feeling is going.

Though the more I think about it, the more I like sys.executable. :)

>> However, -p must be able to accept any number of strings, including
>> "/usr/bin/env python3" if the user wants that.
>
>The code simply writes
>'#!{}\n'.format(p_option).encode(sys.filesystemencoding()) to the file, so
>you can put whatever you want in. Given that it isn't the name of the Python
>executable, maybe the option should be --interpreter instead?

(Quoting out of order.)

>I'm not quite sure what you mean here, but maybe you're thinking that
>the -p option is the executable name rather than what gets put in the
>#! line directly? Let me know if it's not covered by what I've already
>said.

I was thinking it would be useful to mimic virtualenv's -p/--python option,
but I think that doesn't actually do the $PATH parsing, so maybe taking -p
verbatim is fine.

>Oh, and am I right that the shebang line should be encoded using the
>filesystem encoding on Unix? I know 99.999% of use cases will be
>ascii, but someone could have a Python interpreter in
>/home/léon/.local/bin/python...

Well, actually probably utf-8 in most cases, at least for Python 3 on *nix.
I'm not sure sys.getfilesystemencoding() is the right encoding, rather than
sys.getdefaultencoding(), if you're talking about the encoding of the shebang
line rather than the encoding of the resulting pyz filename.

Cheers,
-Barry
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