#29970: Cannot use cached_property instance without calling __set_name__() on
it.
-------------------------------------------+------------------------
Reporter: Collin Anderson | Owner: nobody
Type: Bug | Status: new
Component: Utilities | Version: master
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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With Python 3.6.7 (on Ubuntu 18.04), I'm getting this error for a fairly
standard use of `cached_property`:
`TypeError: Cannot use cached_property instance without calling
__set_name__() on it.`
{{{
class MyModel(models.Model):
@cached_property
def my_method(self):
return 'test'
}}}
I assume this was broken by #29478. Maybe Django's custom `__new__` code
for models breaks the `__set_name__` hook?
--
Ticket URL: <https://code.djangoproject.com/ticket/29970>
Django <https://code.djangoproject.com/>
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