You want to add a custom attribute status to multiple instances of a class Task only if their priority is above 5. Which code correctly does this?
hard🚀 Application Q15 of Q15
Python - Custom Exceptions
You want to add a custom attribute status to multiple instances of a class Task only if their priority is above 5. Which code correctly does this?
Afor t in tasks:
if t.priority > 5:
t.status = 'urgent'
Bfor t in tasks:
t.status = 'urgent' if t.priority > 5 else None
Cfor t in tasks:
if t.priority > 5:
t['status'] = 'urgent'
Dfor t in tasks:
t.status = 'urgent'
if t.priority <= 5:
del t.status
Step-by-Step Solution
Solution:
Step 1: Understand the condition and attribute addition
We want to add status only if priority > 5, so we check this condition inside the loop.
Step 2: Check each option's logic and syntax
for t in tasks:
if t.priority > 5:
t.status = 'urgent' adds status only when priority > 5 using dot notation correctly. for t in tasks:
t.status = 'urgent' if t.priority > 5 else None assigns status to None for others, which adds the attribute unnecessarily. for t in tasks:
if t.priority > 5:
t['status'] = 'urgent' uses dictionary syntax which is invalid. for t in tasks:
t.status = 'urgent'
if t.priority <= 5:
del t.status adds status to all then deletes for low priority, which is inefficient and error-prone.
Final Answer:
for t in tasks:
if t.priority > 5:
t.status = 'urgent' -> Option A
Quick Check:
Use if condition and dot notation to add attributes selectively [OK]
Quick Trick:Add attributes inside if-block with dot notation [OK]
Common Mistakes:
MISTAKES
Using dictionary syntax on objects
Adding attribute to all instances regardless of condition
Assigning None instead of skipping attribute
Master "Custom Exceptions" in Python
9 interactive learning modes - each teaches the same concept differently
