Fixed catching unnececcary exceptions
Exception Abort can't be thrown, so it is useless.
Catching SystemExit and KeyboardInterrupt makes little sense as the thread can
be terminated by KeyboardInterrupt before or after entering the wrapped command
processing function. So one have to handle these exceptions in his main function
anyway.
Catching any exception in order to print a message and re-raise it changes the
standard behaviour and might seem confusing.
=============
Opster
=============
.. toctree::
:maxdepth: 1
changelog
overview
api
Opster is a command line parser, intended to make writing command line
applications easy and painless. It uses built-in Python types (lists,
dictionaries, etc) to define options, which makes configuration clear and
concise. Additionally it contains possibility to handle subcommands (i.e.
``hg commit`` or ``svn update``).
Features
--------
- parsing arguments from sys.argv or custom strings
- converting from string to appropriate Python objects
- help message generation
- positional and named arguments
- subcommands support
- short, clean and concise definitions
- ability to shorten names of subcommand and long options
What's nice
-----------
- Opster is a `single file`_, which means that you can easily include it with
your application
- When you've decorated function as command, you can continue to use it as
usual Python function.
- It's easy to switch between usual command line options parser and
subcommands.
Read more in :doc:`overview`.
.. _single file: http://hg.piranha.org.ua/opster/file/tip/opster.py