[Python-mode] execfile

[Barry Warsaw]

On May 20, 2011, at 01:41 PM, Andreas Röhler wrote:

>think we should get the execfile issue fixed with next release too.

Definitely.  Sorry for letting this one get buried in my inbox, but I've now
commented on the issue.

>What about introducing a var indicating the python version the code is
>intended to?

+1

>In case that var isn't set, the python version which py-execute-region would
>call, may be queried on the fly.
>
>Should I look for this?

Yes please!  python-mode.el should know whether the file it's visiting is
Python 2 or Python 3, probably in a local variable which could be set
automatically if you can find a decent clue (e.g. #!/usr/bin/python3).  You
might want to think of other ways to set this (file local variables, or
auto-mode-alist perhaps?)  Once you have that, then the mode can do all sorts
of version-specific things, like doing different font-locking, or firing off a
different Python shell, etc.  In this specific case, you could run different
Python code, as described in my bug comment.

I think this would be a really valuable feature for python-mode.el.

Cheers,
-Barry
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