Opened 4 years ago

Last modified 4 years ago

#32450 closed Bug

"TypeError: cannot pickle" when applying | operator to a Q object — at Version 1

Reported by: Daniel Izquierdo Owned by: nobody
Component: Database layer (models, ORM) Version: 3.1
Severity: Normal Keywords:
Cc: Tom Forbes Triage Stage: Ready for checkin
Has patch: yes Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description (last modified by Daniel Izquierdo)

Using a reference to a non-pickleable type of object such as dict_keys in a Q object makes the | operator fail:

>>> from django.db.models import Q
>>> Q(x__in={}.keys())
<Q: (AND: ('x__in', dict_keys([])))>
>>> Q() | Q(x__in={}.keys())
Traceback (most recent call last):
...
TypeError: cannot pickle 'dict_keys' object

Even though this particular example could be solved by doing Q() | Q(x__in={}) it still feels like using .keys() should work.

I can work on a patch if there's agreement that this should not crash.

Change History (1)

comment:1 by Daniel Izquierdo, 4 years ago

Description: modified (diff)
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