Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #37538

Re: Retrieving the full command line

Show all headers | View raw

On Thu, Jan 24, 2013 at 3:49 PM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> Note however that there is an ambiguity between calling "python -mspam"
> and calling a script literally named "-mspam". But that same ambiguity
> exists in the shell, so I don't consider it a problem. You cannot call a
> script named -mspam unless you use something like this "python ./-mspam".

Another spanner for your works: "python -- -mspam" succeeds. That sets
argv[0] to '-mspam'.

> People hardly ever care about argv[0]. At least, I don't think I ever
> have. But the OP does, and Python mangling argv[0] is causing him grief
> because it lies, claiming to have called the __main__.py of his package
> directly when in fact he called it with -m.

Usually when I reference argv[0], $0, or any equivalent, it's for a
usage display - eg:

USAGE: $0 [opts] infile [outfile]
--foo    Fooify the file
--bar    Burn your computer to the ground

So I don't particularly care about symlinks or relative paths (if it
worked once, it'll probably work another time). But ambiguities may be
an issue.

ChrisA

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: Retrieving the full command line Tim Golden <mail@timgolden.me.uk> - 2013-01-22 15:07 +0000
  Re: Retrieving the full command line Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:46 +0000
    Re: Retrieving the full command line Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-23 00:53 +0000
      Re: Retrieving the full command line Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-23 03:58 +0000
        Re: Retrieving the full command line Tim Golden <mail@timgolden.me.uk> - 2013-01-23 09:58 +0000
        Re: Retrieving the full command line Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-23 10:01 +0000
          Re: Retrieving the full command line Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-24 04:49 +0000
            Re: Retrieving the full command line Chris Angelico <rosuav@gmail.com> - 2013-01-24 16:06 +1100
            Re: Retrieving the full command line Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-24 10:06 +0000
            Re: Retrieving the full command line Tim Golden <mail@timgolden.me.uk> - 2013-01-24 10:56 +0000
            Re: Retrieving the full command line Tim Golden <mail@timgolden.me.uk> - 2013-01-24 11:04 +0000
            Re: Retrieving the full command line Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-24 11:30 +0000
            Re: Retrieving the full command line Tim Golden <mail@timgolden.me.uk> - 2013-01-24 13:45 +0000
            Re: Retrieving the full command line Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-24 15:28 +0000
            Re: Retrieving the full command line Tim Golden <mail@timgolden.me.uk> - 2013-01-24 15:51 +0000
            Re: Retrieving the full command line Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-24 16:08 +0000
            Re: Retrieving the full command line Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-24 16:53 +0000
            Re: Retrieving the full command line Tim Golden <mail@timgolden.me.uk> - 2013-01-24 17:13 +0000
            Re: Retrieving the full command line Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-24 20:01 +0000
            Re: Retrieving the full command line Tim Golden <mail@timgolden.me.uk> - 2013-01-24 20:54 +0000

csiph-web