def _is_some_method(obj):
return inspect.ismethod(obj) or inspect.ismethoddescriptor(obj)
python类ismethoddescriptor()的实例源码
def test_getmembers_descriptors(self):
class A(object):
dd = _BrokenDataDescriptor()
md = _BrokenMethodDescriptor()
def pred_wrapper(pred):
# A quick'n'dirty way to discard standard attributes of new-style
# classes.
class Empty(object):
pass
def wrapped(x):
if '__name__' in dir(x) and hasattr(Empty, x.__name__):
return False
return pred(x)
return wrapped
ismethoddescriptor = pred_wrapper(inspect.ismethoddescriptor)
isdatadescriptor = pred_wrapper(inspect.isdatadescriptor)
self.assertEqual(inspect.getmembers(A, ismethoddescriptor),
[('md', A.__dict__['md'])])
self.assertEqual(inspect.getmembers(A, isdatadescriptor),
[('dd', A.__dict__['dd'])])
class B(A):
pass
self.assertEqual(inspect.getmembers(B, ismethoddescriptor),
[('md', A.__dict__['md'])])
self.assertEqual(inspect.getmembers(B, isdatadescriptor),
[('dd', A.__dict__['dd'])])
def _is_some_method(obj):
return (inspect.isfunction(obj) or
inspect.ismethod(obj) or
inspect.isbuiltin(obj) or
inspect.ismethoddescriptor(obj))
def _from_module(self, module, object):
"""
Return true if the given object is defined in the given
module.
"""
if module is None:
return True
elif inspect.getmodule(object) is not None:
return module is inspect.getmodule(object)
elif inspect.isfunction(object):
return module.__dict__ is object.__globals__
elif inspect.ismethoddescriptor(object):
if hasattr(object, '__objclass__'):
obj_mod = object.__objclass__.__module__
elif hasattr(object, '__module__'):
obj_mod = object.__module__
else:
return True # [XX] no easy way to tell otherwise
return module.__name__ == obj_mod
elif inspect.isclass(object):
return module.__name__ == object.__module__
elif hasattr(object, '__module__'):
return module.__name__ == object.__module__
elif isinstance(object, property):
return True # [XX] no way not be sure.
else:
raise ValueError("object must be a class or function")
def params(self):
params_str, ret = self._parse_function_doc()
tokens = params_str.split(',')
if inspect.ismethoddescriptor(self.obj):
tokens.insert(0, 'self')
params = []
for p in tokens:
parts = [FakeName(part) for part in p.strip().split('=')]
if len(parts) > 1:
parts.insert(1, Operator(zero_position_modifier, '=', (0, 0)))
params.append(Param(parts, self))
return params
def api_type(self):
obj = self.obj
if inspect.isclass(obj):
return 'class'
elif inspect.ismodule(obj):
return 'module'
elif inspect.isbuiltin(obj) or inspect.ismethod(obj) \
or inspect.ismethoddescriptor(obj) or inspect.isfunction(obj):
return 'function'
# Everything else...
return 'instance'
def type(self):
"""Imitate the tree.Node.type values."""
cls = self._get_class()
if inspect.isclass(cls):
return 'classdef'
elif inspect.ismodule(cls):
return 'file_input'
elif inspect.isbuiltin(cls) or inspect.ismethod(cls) or \
inspect.ismethoddescriptor(cls):
return 'funcdef'
def _get_class(self):
if not fake.is_class_instance(self.obj) or \
inspect.ismethoddescriptor(self.obj): # slots
return self.obj
try:
return self.obj.__class__
except AttributeError:
# happens with numpy.core.umath._UFUNC_API (you get it
# automatically by doing `import numpy`.
return type
def __get__(self, instance, owner):
if inspect.ismethoddescriptor(self.value) or inspect.isdatadescriptor(self.value):
return self.value.__get__(instance, owner)
if inspect.isfunction(self.value):
if instance is None:
return self
else:
return six.create_bound_method(self.value, instance)
else:
return self.value
#------------------------------------------------[ CheckedInstance ]
def arg_checks(**checks):
def catch_wrapped(f):
if inspect.ismethoddescriptor(f):
f.__func__.arg_checks = checks
else:
f.arg_checks = checks
@wrapt.decorator
def check_call(wrapped, instance, args, kwargs):
if six.PY2:
if isinstance(wrapped, functools.partial) and not wrapped.func.__self__ and instance:
args = (instance,)+args
return ArgumentCheckedCallable(wrapped)(*args, **kwargs)
return check_call(f)
return catch_wrapped
def _from_module(self, module, object):
"""
Return true if the given object is defined in the given
module.
"""
if module is None:
return True
elif inspect.isfunction(object):
return module.__dict__ is object.__globals__
elif inspect.isbuiltin(object):
return module.__name__ == object.__module__
elif inspect.isclass(object):
return module.__name__ == object.__module__
elif inspect.ismethod(object):
# This one may be a bug in cython that fails to correctly set the
# __module__ attribute of methods, but since the same error is easy
# to make by extension code writers, having this safety in place
# isn't such a bad idea
return module.__name__ == object.__self__.__class__.__module__
elif inspect.getmodule(object) is not None:
return module is inspect.getmodule(object)
elif hasattr(object, '__module__'):
return module.__name__ == object.__module__
elif isinstance(object, property):
return True # [XX] no way not be sure.
elif inspect.ismethoddescriptor(object):
# Unbound PyQt signals reach this point in Python 3.4b3, and we want
# to avoid throwing an error. See also http://bugs.python.org/issue3158
return False
else:
raise ValueError("object must be a class or function, got %r" % object)
def check_data_classes(test, classes):
import inspect
for data_class in classes:
test.assertTrue(data_class.__doc__ is not None,
'The class %s should have a docstring' % data_class)
if hasattr(data_class, '_qname'):
qname_versions = None
if isinstance(data_class._qname, tuple):
qname_versions = data_class._qname
else:
qname_versions = (data_class._qname,)
for versioned_qname in qname_versions:
test.assertTrue(isinstance(versioned_qname, str),
'The class %s has a non-string _qname' % data_class)
test.assertTrue(not versioned_qname.endswith('}'),
'The _qname for class %s is only a namespace' % (
data_class))
for attribute_name, value in data_class.__dict__.items():
# Ignore all elements that start with _ (private members)
if not attribute_name.startswith('_'):
try:
if not (isinstance(value, str) or inspect.isfunction(value)
or (isinstance(value, list)
and issubclass(value[0], atom.core.XmlElement))
or type(value) == property # Allow properties.
or inspect.ismethod(value) # Allow methods.
or inspect.ismethoddescriptor(value) # Allow method descriptors.
# staticmethod et al.
or issubclass(value, atom.core.XmlElement)):
test.fail(
'XmlElement member should have an attribute, XML class,'
' or list of XML classes as attributes.')
except TypeError:
test.fail('Element %s in %s was of type %s' % (
attribute_name, data_class._qname, type(value)))
def _is_some_method(obj):
return inspect.ismethod(obj) or inspect.ismethoddescriptor(obj)
def test_getmembers_descriptors(self):
class A(object):
dd = _BrokenDataDescriptor()
md = _BrokenMethodDescriptor()
def pred_wrapper(pred):
# A quick'n'dirty way to discard standard attributes of new-style
# classes.
class Empty(object):
pass
def wrapped(x):
if '__name__' in dir(x) and hasattr(Empty, x.__name__):
return False
return pred(x)
return wrapped
ismethoddescriptor = pred_wrapper(inspect.ismethoddescriptor)
isdatadescriptor = pred_wrapper(inspect.isdatadescriptor)
self.assertEqual(inspect.getmembers(A, ismethoddescriptor),
[('md', A.__dict__['md'])])
self.assertEqual(inspect.getmembers(A, isdatadescriptor),
[('dd', A.__dict__['dd'])])
class B(A):
pass
self.assertEqual(inspect.getmembers(B, ismethoddescriptor),
[('md', A.__dict__['md'])])
self.assertEqual(inspect.getmembers(B, isdatadescriptor),
[('dd', A.__dict__['dd'])])
def _is_some_method(obj):
return (inspect.isfunction(obj) or
inspect.ismethod(obj) or
inspect.isbuiltin(obj) or
inspect.ismethoddescriptor(obj))
def _from_module(self, module, object):
"""
Return true if the given object is defined in the given
module.
"""
if module is None:
return True
elif inspect.getmodule(object) is not None:
return module is inspect.getmodule(object)
elif inspect.isfunction(object):
return module.__dict__ is object.__globals__
elif inspect.ismethoddescriptor(object):
if hasattr(object, '__objclass__'):
obj_mod = object.__objclass__.__module__
elif hasattr(object, '__module__'):
obj_mod = object.__module__
else:
return True # [XX] no easy way to tell otherwise
return module.__name__ == obj_mod
elif inspect.isclass(object):
return module.__name__ == object.__module__
elif hasattr(object, '__module__'):
return module.__name__ == object.__module__
elif isinstance(object, property):
return True # [XX] no way not be sure.
else:
raise ValueError("object must be a class or function")
def _is_some_method(obj):
return inspect.ismethod(obj) or inspect.ismethoddescriptor(obj)
def _is_some_method(obj):
return inspect.ismethod(obj) or inspect.ismethoddescriptor(obj)
def get_params(self):
return [] # TODO Fix me.
params_str, ret = self._parse_function_doc()
tokens = params_str.split(',')
if inspect.ismethoddescriptor(self.obj):
tokens.insert(0, 'self')
params = []
for p in tokens:
parts = [FakeName(part) for part in p.strip().split('=')]
if len(parts) > 1:
parts.insert(1, Operator('=', (0, 0)))
params.append(Param(parts, self))
return params
def get_param_names(self):
params_str, ret = self._parse_function_doc()
tokens = params_str.split(',')
if inspect.ismethoddescriptor(self.obj):
tokens.insert(0, 'self')
for p in tokens:
parts = p.strip().split('=')
if len(parts) > 1:
parts.insert(1, Operator('=', (0, 0)))
yield UnresolvableParamName(self, parts[0])
