Name	Size	Mode	Actions
__pycache__/	-	0755	rm
converters.py	531	0644	editdlrm
exceptions.py	1105	0644	editdlrm
filters.py	1151	0644	editdlrm
validators.py	4960	0644	editdlrm
_compat.py	4294	0644	editdlrm
_config.py	514	0644	editdlrm
_funcs.py	7894	0644	editdlrm
_make.py	49291	0644	editdlrm
__init__.py	1160	0644	editdlrm

""" Commonly useful converters. """ from __future__ import absolute_import, division, print_function def optional(converter): """ A converter that allows an attribute to be optional. An optional attribute is one which can be set to ``None``. :param callable converter: the converter that is used for non-``None`` values. .. versionadded:: 17.1.0 """ def optional_converter(val): if val is None: return None return converter(val) return optional_converter