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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def wheel_version(source_dir):
 """ Return the Wheel-Version of an extracted wheel, if possible. Otherwise, return None if we couldn't parse / extract it. """

    try:
        dist = [d for d in pkg_resources.find_on_path(None, source_dir)][0]

        wheel_data = dist.get_metadata('WHEEL')
        wheel_data = Parser().parsestr(wheel_data)

        version = wheel_data['Wheel-Version'].strip()
        version = tuple(map(int, version.split('.')))
        return version
    except Exception:
        return None