def parse_args(args=None):
if args is None:<EOL><INDENT>args = sys.argv<EOL><DEDENT>parser = argparse.ArgumentParser(description='<STR_LIT>'<EOL>'<STR_LIT>',<EOL>parents=[INSTALL_REQUIREMENTS_PARSER])<EOL>return parser.parse_args()<EOL>
Parses arguments, returns ``(options, args)``.