weakref		index
/usr/lib/python2.7/weakref.py

Weak reference support for Python.
 
This module is an implementation of PEP 205:
 
http://www.python.org/dev/peps/pep-0205/

 
Modules
       
UserDict

 
Classes
       
UserDict
WeakKeyDictionary
WeakValueDictionary
__builtin__.weakref(object)
KeyedRef

 
class KeyedRef(__builtin__.weakref)
    Specialized reference that includes a key corresponding to the value.
 
This is used in the WeakValueDictionary to avoid having to create
a function object for each key stored in the mapping.  A shared
callback object can use the 'key' attribute of a KeyedRef instead
of getting a reference to the key from an enclosing scope.
 
 
Method resolution order:
KeyedRef
__builtin__.weakref
object
Methods defined here:
__init__(self, ob, callback, key)
Static methods defined here:
__new__(type, ob, callback, key)
Data descriptors defined here:
key
Methods inherited from __builtin__.weakref:
__call__(...)
x.__call__(...) <==> x(...)
__eq__(...)
x.__eq__(y) <==> x==y
__ge__(...)
x.__ge__(y) <==> x>=y
__gt__(...)
x.__gt__(y) <==> x>y
__hash__(...)
x.__hash__() <==> hash(x)
__le__(...)
x.__le__(y) <==> x<=y
__lt__(...)
x.__lt__(y) <==> x<y
__ne__(...)
x.__ne__(y) <==> x!=y
__repr__(...)
x.__repr__() <==> repr(x)

 
class WeakKeyDictionary(UserDict)
    Mapping class that references keys weakly.
 
Entries in the dictionary will be discarded when there is no
longer a strong reference to the key. This can be used to
associate additional data with an object owned by other parts of
an application without adding attributes to those objects. This
can be especially useful with objects that override attribute
accesses.
 
  Methods defined here:
__contains__(self, key)
__copy__ = copy(self)
__deepcopy__(self, memo)
__delitem__(self, key)
__getitem__(self, key)
__init__(self, dict=None)
__iter__ = iterkeys(self)
__repr__(self)
__setitem__(self, key, value)
copy(self)
get(self, key, default=None)
has_key(self, key)
items(self)
iteritems(self)
iterkeyrefs(self)
Return an iterator that yields the weak references to the keys.
 
The references are not guaranteed to be 'live' at the time
they are used, so the result of calling the references needs
to be checked before being used.  This can be used to avoid
creating references that will cause the garbage collector to
keep the keys around longer than needed.
iterkeys(self)
itervalues(self)
keyrefs(self)
Return a list of weak references to the keys.
 
The references are not guaranteed to be 'live' at the time
they are used, so the result of calling the references needs
to be checked before being used.  This can be used to avoid
creating references that will cause the garbage collector to
keep the keys around longer than needed.
keys(self)
pop(self, key, *args)
popitem(self)
setdefault(self, key, default=None)
update(self, dict=None, **kwargs)
Methods inherited from UserDict:
__cmp__(self, dict)
__len__(self)
clear(self)
values(self)
Class methods inherited from UserDict:
fromkeys(cls, iterable, value=None) from __builtin__.classobj
Data and other attributes inherited from UserDict:
__hash__ = None

 
class WeakValueDictionary(UserDict)
    Mapping class that references values weakly.
 
Entries in the dictionary will be discarded when no strong
reference to the value exists anymore
 
  Methods defined here:
__contains__(self, key)
__copy__ = copy(self)
__deepcopy__(self, memo)
__delitem__(self, key)
__getitem__(self, key)
__init__(self, *args, **kw)
__iter__ = iterkeys(self)
__repr__(self)
__setitem__(self, key, value)
clear(self)
copy(self)
get(self, key, default=None)
has_key(self, key)
items(self)
iteritems(self)
iterkeys(self)
itervaluerefs(self)
Return an iterator that yields the weak references to the values.
 
The references are not guaranteed to be 'live' at the time
they are used, so the result of calling the references needs
to be checked before being used.  This can be used to avoid
creating references that will cause the garbage collector to
keep the values around longer than needed.
itervalues(self)
pop(self, key, *args)
popitem(self)
setdefault(self, key, default=None)
update(self, dict=None, **kwargs)
valuerefs(self)
Return a list of weak references to the values.
 
The references are not guaranteed to be 'live' at the time
they are used, so the result of calling the references needs
to be checked before being used.  This can be used to avoid
creating references that will cause the garbage collector to
keep the values around longer than needed.
values(self)
Methods inherited from UserDict:
__cmp__(self, dict)
__len__(self)
keys(self)
Class methods inherited from UserDict:
fromkeys(cls, iterable, value=None) from __builtin__.classobj
Data and other attributes inherited from UserDict:
__hash__ = None

 
Functions
       
getweakrefcount(...)
getweakrefcount(object) -- return the number of weak references
to 'object'.
getweakrefs(...)
getweakrefs(object) -- return a list of all weak reference objects
that point to 'object'.
proxy(...)
proxy(object[, callback]) -- create a proxy object that weakly
references 'object'.  'callback', if given, is called with a
reference to the proxy when 'object' is about to be finalized.

 
Data
        ProxyTypes = (<type 'weakproxy'>, <type 'weakcallableproxy'>)
__all__ = ['ref', 'proxy', 'getweakrefcount', 'getweakrefs', 'WeakKeyDictionary', 'ReferenceError', 'ReferenceType', 'ProxyType', 'CallableProxyType', 'ProxyTypes', 'WeakValueDictionary', 'WeakSet']
__file__ = '/usr/lib/python2.7/weakref.pyc'
__name__ = 'weakref'