[Solved] Identify the error in this signal handler connection code: from django.db.models.signals import post_save from django.... | Django

Django - Signals

Identify the error in this signal handler connection code:

from django.db.models.signals import post_save
from django.dispatch import receiver

@receiver(post_save)
def handler(sender, instance, **kwargs):
    print('Saved!')

AMissing sender argument in @receiver decorator

BHandler function missing 'created' parameter

Cpost_save signal is not imported correctly

DHandler function should not have **kwargs

Step-by-Step Solution

Solution:

Step 1: Check the @receiver decorator usage
The @receiver decorator requires the signal and optionally the sender. Omitting sender means the handler listens to all senders, which is allowed but often unintended.
Step 2: Identify the likely error
Since the question asks for an error, the missing sender argument is the problem if the handler is meant for a specific model.
Final Answer:
Missing sender argument in @receiver decorator -> Option A
Quick Check:
Specify sender to target model signals [OK]

Quick Trick: Always specify sender to avoid catching all signals [OK]

Common Mistakes:

MISTAKES

Not specifying sender when needed
Assuming 'created' param is always required
Misunderstanding **kwargs usage

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More Django Quizzes

Identify the error in this signal handler connection code:

Step 1: Check the @receiver decorator usage

Step 2: Identify the likely error

Final Answer:

Quick Check:

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