WeakMethod
- WeakMethod(method[, callback])
A custom `weakref.ref` subclass which simulates a weak reference to a bound method, working around the lifetime problem of bound methods.
© Python Software Foundation. PSF License Version 2 · Official docs ↗
1 Example
>>> class C: ... def method(self): ... print("method called!") ... >>> c = C() >>> r = weakref.ref(c.method) >>> r() >>> r = weakref.WeakMethod(c.method) >>> r() <bound method C.method of <__main__.C object at 0x7fc859830220>> >>> r()() method called! >>> del c >>> gc.collect() 0 >>> r() >>>
from the Python docs