/Python/Use a callable instead, e.g., use `dict` instead of `{}`

Use a callable instead, e.g., use `dict` instead of `{}`

# You have two options here:

# 1.Rely on dict as a default; this will result in your models using an empty dict {} if none is supplied:
class UnderwritingValidator(TimeStampedModel):
    plan = models.PositiveIntegerField(null=True, blank=True, unique=True)
    logic = JSONField(default=dict)

# 2.Create your own "callable" and use it as default:
def get_default_something():
    return {'accept_list': [], 'reject_list': []}

class UnderwritingValidator(TimeStampedModel):
    plan = models.PositiveIntegerField(null=True, blank=True, unique=True)
    logic = JSONField(default=get_default_something)

Source: stackoverflow.com

Similar codes

-1 vote107 views1 answer
'DataFrame' object has no attribute 'as_matrix'
Python
7 votes124 views2 answers
What is the django orm
Python Django
0 vote90 views1 answer
Sort object by one attribute python
Python
-1 vote103 views1 answer
Python if else interview questions
Python
3 votes112 views1 answer
PowerShell says “execution of scripts is disabled on this system.”
Python
0 vote101 views1 answer
Pythongalaxy.com
Python
13 votes111 views3 answers
Legend size matplotlib
Python
0 vote117 views1 answer
F-string expression part cannot include a backslash
Python
0 vote108 views1 answer
Error: The file/path provided (flaskr) does not appear to exist. Please verify the path is correct. If app is not on PYTHONPATH, ensure the extension is .py
Python
0 vote189 views1 answer
Access kwargs in template django
Python Django