/Python/TypeError: can't pickle weakref objects site:stackoverflow.com

TypeError: can't pickle weakref objects site:stackoverflow.com

>>> import dill
>>> import weakref
>>> dill.loads(dill.dumps(weakref.WeakKeyDictionary()))
<WeakKeyDictionary at 4528979192>
>>> dill.loads(dill.dumps(weakref.WeakValueDictionary()))
<WeakValueDictionary at 4528976888>
>>> class _class:
...   def _method(self):
...     pass
... 
>>> _instance = _class()
>>> dill.loads(dill.dumps(weakref.ref(_instance)))
<weakref at 0x10d748940; dead>
>>> dill.loads(dill.dumps(weakref.ref(_class())))
<weakref at 0x10e246a48; dead>
>>> dill.loads(dill.dumps(weakref.proxy(_instance)))
<weakproxy at 0x10e246b50 to NoneType at 0x10d481598>
>>> dill.loads(dill.dumps(weakref.proxy(_class())))
<weakproxy at 0x10e246ba8 to NoneType at 0x10d481598>

Source: stackoverflow.com

Similar codes

-1 vote150 views1 answer
Subscript in python
Python
6 votes179 views5 answers
Format in python
Python
1 vote188 views3 answers
Django reverse lazy
Python Django
-1 vote162 views1 answer
Cannot import name 'httpresponse' from 'django.http'
Python
0 vote152 views1 answer
Python open file from explorer
Python
0 vote218 views1 answer
Django database connection isn't set to UTC postgresql
Python Django
1 vote147 views1 answer
Python problem append same value
Python
45 votes147 views6 answers
Python check if list contains
Python
0 vote151 views1 answer
Even numbers from 1 to 100 in python
Python
2 votes158 views1 answer
Running selenium on google colab
Python