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Simplify mpl.testing._copy_metadata. #9300

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Merged
merged 1 commit into from
Oct 22, 2017
Merged

Simplify mpl.testing._copy_metadata. #9300

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29 changes: 3 additions & 26 deletions lib/matplotlib/testing/__init__.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
from __future__ import (absolute_import, division, print_function,
unicode_literals)

import functools
import inspect
import warnings
from contextlib import contextmanager
Expand All @@ -20,34 +21,10 @@ def is_called_from_pytest():
return getattr(matplotlib, '_called_from_pytest', False)


# stolen from pytest
def _getrawcode(obj, trycall=True):
"""Return code object for given function."""
try:
return obj.__code__
except AttributeError:
obj = getattr(obj, 'im_func', obj)
obj = getattr(obj, 'func_code', obj)
obj = getattr(obj, 'f_code', obj)
obj = getattr(obj, '__code__', obj)
if trycall and not hasattr(obj, 'co_firstlineno'):
if hasattr(obj, '__call__') and not inspect.isclass(obj):
x = getrawcode(obj.__call__, trycall=False)
if hasattr(x, 'co_firstlineno'):
return x
return obj


def _copy_metadata(src_func, tgt_func):
"""Replicates metadata of the function. Returns target function."""
tgt_func.__dict__.update(src_func.__dict__)
tgt_func.__doc__ = src_func.__doc__
tgt_func.__module__ = src_func.__module__
tgt_func.__name__ = src_func.__name__
if hasattr(src_func, '__qualname__'):
tgt_func.__qualname__ = src_func.__qualname__
if not hasattr(tgt_func, 'compat_co_firstlineno'):
tgt_func.compat_co_firstlineno = _getrawcode(src_func).co_firstlineno
functools.update_wrapper(tgt_func, src_func)
tgt_func.__wrapped__ = src_func # Python2 compatibility.
return tgt_func


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