New submission from Adrian Sampson <asamp...@cs.washington.edu>:
The argparse module supports "subparsers," which allow CLI tools to support
invocation of subcommands (much like the svn or hg programs). For these
subcommands, it is often useful to allow multiple names for the same command.
For instance, in Mercurial, "hg blame" does the same thing as "hg annotate".
You should be able to create subparsers with command aliases, like this:
>>> subparsers.add_parser("annotate", aliases=('ann', 'blame'))
The help message for the program should display the aliases alongisde the
command names.
I'm attaching an example script that adds an Action to the library to
accomplish this. This isn't a patch, but if this approach seems right to other
people, I'll turn it into a patch.
Here's this bug on argparse's old tracker:
http://code.google.com/p/argparse/issues/detail?id=23
----------
components: Library (Lib)
files: aliases.py
messages: 110130
nosy: asampson
priority: normal
severity: normal
status: open
title: argparse: aliases for positional arguments (subparsers)
type: feature request
versions: Python 2.7
Added file: http://bugs.python.org/file17971/aliases.py
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue9234>
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