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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 get_modules(paths, toplevel=True):
 """Take files from the command line even if they don't end with .py."""

    modules = []
    for path in paths:
        path = os.path.abspath(path)
        if toplevel and path.endswith('.pyc'):
            sys.exit('.pyc files are not supported: {0}'.format(path))
        if os.path.isfile(path) and (path.endswith('.py') or toplevel):
            modules.append(path)
        elif os.path.isdir(path):
            subpaths = [
                os.path.join(path, filename)
                for filename in sorted(os.listdir(path))]
            modules.extend(get_modules(subpaths, toplevel=False))
        elif toplevel:
            sys.exit('Error: {0} could not be found.'.format(path))
    return modules