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Add py3k compatibility to is_simple_callable
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@ -49,20 +49,34 @@ class empty:
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pass
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def is_simple_callable(obj):
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"""
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True if the object is a callable that takes no arguments.
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"""
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function = inspect.isfunction(obj)
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method = inspect.ismethod(obj)
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if six.PY3:
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def is_simple_callable(obj):
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"""
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True if the object is a callable that takes no arguments.
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"""
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if not callable(obj):
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return False
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if not (function or method):
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return False
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sig = inspect.signature(obj)
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params = sig.parameters.values()
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return all(param.default != param.empty for param in params)
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args, _, _, defaults = inspect.getargspec(obj)
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len_args = len(args) if function else len(args) - 1
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len_defaults = len(defaults) if defaults else 0
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return len_args <= len_defaults
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else:
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def is_simple_callable(obj):
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function = inspect.isfunction(obj)
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method = inspect.ismethod(obj)
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if not (function or method):
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return False
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if method:
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is_unbound = obj.im_self is None
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args, _, _, defaults = inspect.getargspec(obj)
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len_args = len(args) if function or is_unbound else len(args) - 1
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len_defaults = len(defaults) if defaults else 0
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return len_args <= len_defaults
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def get_attribute(instance, attrs):
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