def objdict(orig):
return UserDict(orig)
#class objdict(dict):
# def __init__(self,initial={}):
# for k,v in initial.items():
# self[k] = v
#
# def __getattr__(self, name):
# if name in self:
# return self[name]
# else:
# raise AttributeError("No such attribute: " + name)
#
# def __setattr__(self, name, value):
# self[name] = value
#
# def __delattr__(self, name):
# if name in self:
# del self[name]
# else:
# raise AttributeError("No such attribute: " + name)
python类UserDict()的实例源码
def __init__(*args, **kw):
if not args:
raise TypeError("descriptor '__init__' of 'WeakValueDictionary' "
"object needs an argument")
self = args[0]
args = args[1:]
if len(args) > 1:
raise TypeError('expected at most 1 arguments, got %d' % len(args))
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
if self._iterating:
self._pending_removals.append(wr.key)
else:
del self.data[wr.key]
self._remove = remove
# A list of keys to be removed
self._pending_removals = []
self._iterating = set()
UserDict.UserDict.__init__(self, *args, **kw)
def __init__(*args, **kw):
if not args:
raise TypeError("descriptor '__init__' of 'WeakValueDictionary' "
"object needs an argument")
self = args[0]
args = args[1:]
if len(args) > 1:
raise TypeError('expected at most 1 arguments, got %d' % len(args))
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
if self._iterating:
self._pending_removals.append(wr.key)
else:
del self.data[wr.key]
self._remove = remove
# A list of keys to be removed
self._pending_removals = []
self._iterating = set()
UserDict.UserDict.__init__(self, *args, **kw)
def __init__(*args, **kw):
if not args:
raise TypeError("descriptor '__init__' of 'WeakValueDictionary' "
"object needs an argument")
self = args[0]
args = args[1:]
if len(args) > 1:
raise TypeError('expected at most 1 arguments, got %d' % len(args))
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
if self._iterating:
self._pending_removals.append(wr.key)
else:
del self.data[wr.key]
self._remove = remove
# A list of keys to be removed
self._pending_removals = []
self._iterating = set()
UserDict.UserDict.__init__(self, *args, **kw)
def test_bad_args(self):
with self.assertRaises(TypeError):
type()
with self.assertRaises(TypeError):
type('A', ())
with self.assertRaises(TypeError):
type('A', (), {}, ())
with self.assertRaises(TypeError):
type('A', (), dict={})
with self.assertRaises(TypeError):
type('A', [], {})
with self.assertRaises(TypeError):
type('A', (), UserDict.UserDict())
with self.assertRaises(TypeError):
type('A', (None,), {})
with self.assertRaises(TypeError):
type('A', (bool,), {})
with self.assertRaises(TypeError):
type('A', (int, str), {})
class B:
pass
with self.assertRaises(TypeError):
type('A', (B,), {})
def __init__(*args, **kw):
if not args:
raise TypeError("descriptor '__init__' of 'WeakValueDictionary' "
"object needs an argument")
self = args[0]
args = args[1:]
if len(args) > 1:
raise TypeError('expected at most 1 arguments, got %d' % len(args))
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
if self._iterating:
self._pending_removals.append(wr.key)
else:
del self.data[wr.key]
self._remove = remove
# A list of keys to be removed
self._pending_removals = []
self._iterating = set()
UserDict.UserDict.__init__(self, *args, **kw)
def test_bad_args(self):
with self.assertRaises(TypeError):
type()
with self.assertRaises(TypeError):
type('A', ())
with self.assertRaises(TypeError):
type('A', (), {}, ())
with self.assertRaises(TypeError):
type('A', (), dict={})
with self.assertRaises(TypeError):
type('A', [], {})
with self.assertRaises(TypeError):
type('A', (), UserDict.UserDict())
with self.assertRaises(TypeError):
type('A', (None,), {})
with self.assertRaises(TypeError):
type('A', (bool,), {})
with self.assertRaises(TypeError):
type('A', (int, str), {})
class B:
pass
with self.assertRaises(TypeError):
type('A', (B,), {})
def __init__(*args, **kw):
if not args:
raise TypeError("descriptor '__init__' of 'WeakValueDictionary' "
"object needs an argument")
self = args[0]
args = args[1:]
if len(args) > 1:
raise TypeError('expected at most 1 arguments, got %d' % len(args))
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
if self._iterating:
self._pending_removals.append(wr.key)
else:
del self.data[wr.key]
self._remove = remove
# A list of keys to be removed
self._pending_removals = []
self._iterating = set()
UserDict.UserDict.__init__(self, *args, **kw)
def __init__(*args, **kw):
if not args:
raise TypeError("descriptor '__init__' of 'WeakValueDictionary' "
"object needs an argument")
self = args[0]
args = args[1:]
if len(args) > 1:
raise TypeError('expected at most 1 arguments, got %d' % len(args))
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
if self._iterating:
self._pending_removals.append(wr.key)
else:
del self.data[wr.key]
self._remove = remove
# A list of keys to be removed
self._pending_removals = []
self._iterating = set()
UserDict.UserDict.__init__(self, *args, **kw)
def __init__(*args, **kw):
if not args:
raise TypeError("descriptor '__init__' of 'WeakValueDictionary' "
"object needs an argument")
self = args[0]
args = args[1:]
if len(args) > 1:
raise TypeError('expected at most 1 arguments, got %d' % len(args))
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
if self._iterating:
self._pending_removals.append(wr.key)
else:
del self.data[wr.key]
self._remove = remove
# A list of keys to be removed
self._pending_removals = []
self._iterating = set()
UserDict.UserDict.__init__(self, *args, **kw)
def __getattr__(self, name):
"""
override the class attribute get method. Return the value
from the Userdict
"""
try:
return self.data[name]
except KeyError:
error = 'Attribute key error: %s' %(name)
raise PBSError(error)
## Disabled for this moment, BvdV 16 July 2010
#
#def __setattr__(self, name, value):
# """
# override the class attribute set method only when the UserDict
# has set its class attribute
# """
# if self.__dict__.has_key('data'):
# self.data[name] = value
# else:
# self.__dict__[name] = value
def __init__(self, *args, **kw):
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
del self.data[wr.key]
self._remove = remove
UserDict.UserDict.__init__(self, *args, **kw)
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def __init__(self, *args, **kw):
def remove(wr, selfref=ref(self)):
self = selfref()
if self is not None:
if self._iterating:
self._pending_removals.append(wr.key)
else:
del self.data[wr.key]
self._remove = remove
# A list of keys to be removed
self._pending_removals = []
self._iterating = set()
UserDict.UserDict.__init__(self, *args, **kw)
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def __init__(self,data=None,size=100):
UserDict.UserDict.__init__(self,data)
self.size = size
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
def modifies_known_mutable(obj, attr):
"""This function checks if an attribute on a builtin mutable object
(list, dict, set or deque) would modify it if called. It also supports
the "user"-versions of the objects (`sets.Set`, `UserDict.*` etc.) and
with Python 2.6 onwards the abstract base classes `MutableSet`,
`MutableMapping`, and `MutableSequence`.
>>> modifies_known_mutable({}, "clear")
True
>>> modifies_known_mutable({}, "keys")
False
>>> modifies_known_mutable([], "append")
True
>>> modifies_known_mutable([], "index")
False
If called with an unsupported object (such as unicode) `False` is
returned.
>>> modifies_known_mutable("foo", "upper")
False
"""
for typespec, unsafe in _mutable_spec:
if isinstance(obj, typespec):
return attr in unsafe
return False
