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gh-103193: Speedup and inline `inspect._is_type` (#103321)
Improve performance of `inspect.getattr_static`
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@ -1791,13 +1791,6 @@ def _check_class(klass, attr):
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return entry.__dict__[attr]
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return _sentinel
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def _is_type(obj):
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try:
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_static_getmro(obj)
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except TypeError:
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return False
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return True
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def _shadowed_dict(klass):
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for entry in _static_getmro(klass):
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dunder_dict = _get_dunder_dict_of_class(entry)
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@ -1821,8 +1814,10 @@ def getattr_static(obj, attr, default=_sentinel):
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documentation for details.
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"""
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instance_result = _sentinel
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if not _is_type(obj):
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klass = type(obj)
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objtype = type(obj)
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if type not in _static_getmro(objtype):
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klass = objtype
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dict_attr = _shadowed_dict(klass)
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if (dict_attr is _sentinel or
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type(dict_attr) is types.MemberDescriptorType):
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