def print_help(self, file=None):
output = file or self.stderr<EOL>CustomStderrOptionParser.print_help(self, output)<EOL>output.write("<STR_LIT>")<EOL>for command_def in list(self.command_definitions.values()):<EOL><INDENT>command_def.opt_parser.print_help(output)<EOL>output.write("<STR_LIT:\n>")<EOL><DEDENT>
recursively call all command parsers' helps