Message 169965 - Python tracker

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In-reply-to
Author	r.david.murray
Recipients	ZhuangZi, bethard, r.david.murray
Date	2012年09月07日.01:38:17
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1346981898.51.0.124628451129.issue15874@psf.upfronthosting.co.za>

Content
I'm not sure this is a good idea. $BAR is supported on the command line because your shell supports it. To support it in files, argparse would have to (re)implement shell parsing, and while we do have a parser in the stdlib that can do some of this (shlex), actually implementing environment variable substitution correctly would be a non-trivial undertaking. And what about the csh users? (Assuming there are any left :)

Content

I'm not sure this is a good idea. $BAR is supported on the command line because your shell supports it. To support it in files, argparse would have to (re)implement shell parsing, and while we do have a parser in the stdlib that can do some of this (shlex), actually implementing environment variable substitution correctly would be a non-trivial undertaking. And what about the csh users? (Assuming there are any left :)

History
Date	User	Action	Args
2012年09月07日 01:38:18	r.david.murray	set	recipients: + r.david.murray, bethard, ZhuangZi
2012年09月07日 01:38:18	r.david.murray	set	messageid: <1346981898.51.0.124628451129.issue15874@psf.upfronthosting.co.za>
2012年09月07日 01:38:17	r.david.murray	link	issue15874 messages
2012年09月07日 01:38:17	r.david.murray	create

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