Sindbad~EG File Manager

# Copyright 2013 Eucalyptus Systems, Inc.
#
# Redistribution and use of this software in source and binary forms,
# with or without modification, are permitted provided that the following
# conditions are met:
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#   this list of conditions and the following disclaimer.
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import argparse


def cloudwatch_dimension(dim_as_str):
    try:
        name, val = dim_as_str.split('=', 1)
        return {'Name': name, 'Value': val}
    except ValueError:
        raise argparse.ArgumentTypeError('dimension filter "{0}" must have '
                                         'form KEY=VALUE'.format(dim_as_str))