##// END OF EJS Templates
wireproto: bounce kwargs to/from bytes/str as needed...
wireproto: bounce kwargs to/from bytes/str as needed Differential Revision: https://phab.mercurial-scm.org/D1107

File last commit:

r34398:765eb17a default
r34740:b880cc11 default
Show More
converters.py
24 lines | 531 B | text/x-python | PythonLexer
"""
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