/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

0 vote308 views1 answer
Windows 10 reset django migrations
Python
0 vote272 views3 answers
Convert c code to python code online
Python
0 vote323 views1 answer
ConversionofDatatypes-I
Python
20 votes278 views2 answers
Plot data python
Python
0 vote317 views1 answer
ImportError: matplotlib is required for plotting when the default backend "matplotlib" is selected.
Python
4 votes259 views1 answer
Django is null
Python
1 vote263 views2 answers
Python try except raise error
Python
2 votes278 views3 answers
How to reboot a python script
Python
1 vote324 views1 answer
Python count words in file
Python
3 votes279 views2 answers
Python script that executes at time
Python