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Description
If you don't specify arguments for the interface, you are correctly given the usage and "too few arguments" as excepted. However, if you put -h or --help after the interface, an error is thrown by argparse.
nipype_cmd nipype.interfaces.ants.registration Registration --help
Traceback (most recent call last):
File ".../anaconda/bin/nipype_cmd", line 8, in <module>
main(sys.argv)
File ".../anaconda/lib/python2.7/site-packages/nipype/utils/nipype_cmd.py", line 71, in main
args = interface_parser.parse_args(args=argv[3:])
File ".../anaconda/lib/python2.7/argparse.py", line 1701, in parse_args
args, argv = self.parse_known_args(args, namespace)
File ".../anaconda/lib/python2.7/argparse.py", line 1733, in parse_known_args
namespace, args = self._parse_known_args(args, namespace)
File ".../anaconda/lib/python2.7/argparse.py", line 1939, in _parse_known_args
start_index = consume_optional(start_index)
File ".../anaconda/lib/python2.7/argparse.py", line 1879, in consume_optional
take_action(action, args, option_string)
File ".../anaconda/lib/python2.7/argparse.py", line 1807, in take_action
action(self, namespace, argument_values, option_string)
File ".../anaconda/lib/python2.7/argparse.py", line 996, in __call__
parser.print_help()
File ".../anaconda/lib/python2.7/argparse.py", line 2340, in print_help
self._print_message(self.format_help(), file)
File ".../anaconda/lib/python2.7/argparse.py", line 2314, in format_help
return formatter.format_help()
File ".../anaconda/lib/python2.7/argparse.py", line 281, in format_help
help = self._root_section.format_help()
File ".../anaconda/lib/python2.7/argparse.py", line 211, in format_help
func(*args)
File ".../anaconda/lib/python2.7/argparse.py", line 211, in format_help
func(*args)
File ".../anaconda/lib/python2.7/argparse.py", line 517, in _format_action
help_text = self._expand_help(action)
File ".../anaconda/lib/python2.7/argparse.py", line 603, in _expand_help
return self._get_help_string(action) % params
TypeError: %d format: a number is required, not dict