4 examples of 'python get arguments from shell' in Python

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def Shell(*args, **kwargs):
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    pass

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def _run_shell(env, args):
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    return env.run_shell()

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def get_arglist(self, objtxt):
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    """Get func/method argument list"""
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    raise NotImplementedError

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def get_args():
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    argv = sys.argv
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    if len(argv) > 3 or len(argv) <= 1:
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        print 'error: too many or too few options!'
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        print 'usage: %s %s' % (argv[0], ' install|uninstall [--prefix=INSTALL_PATH]')
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        sys.exit(0)
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    action = ''
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    install_root = ''
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    for arg in argv[1:]:
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        if arg == 'install':
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            action = 'install'
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        elif arg == 'uninstall':
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            action = 'uninstall'
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        elif arg.find('--prefix=') == 0:
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            install_root = os.path.expanduser(arg[arg.rindex('=')+1:]) + '/buildc'
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        else:
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            print 'error: unsupport option: %s' % arg
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            print 'usage: %s %s' % (argv[0], ' install|uninstall [--prefix=INSTALL_PATH]')
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    if action == '':
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        print 'usage: %s %s' % (argv[0], ' install|uninstall [--prefix=INSTALL_PATH]')
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    if install_root == '':
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        install_root = DEFAULT_INSTALL_ROOT
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    return action, install_root