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branchmap: force Exception to bytes before logging...
branchmap: force Exception to bytes before logging Here was an instance where `black` mangled the formatting so that `pytype` didn't recognize the suppression directive. But it seems that the error was correct, and the code should follow other recent changes around exception conversion. File "/mnt/c/Users/Matt/hg/mercurial/branchmap.py", line 303, in fromfile: Function _bytestr.__init__ was called with the wrong arguments [wrong-arg-types] Expected: (self, ints: Iterable[int]) Actually passed: (self, ints: Exception) The following methods aren't implemented on Exception: __iter__ Differential Revision: https://phab.mercurial-scm.org/D10170

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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