90% Python Developers Fail This 😱 | List Mutation During Iteration #shorts

In this Python code, we loop through a list while modifying it at the same time.

a = [1, 2, 3]
A list with three elements is created.

for i in a:
The loop starts iterating over the list.

if i == 2:
a.remove(i)
When the value 2 is found, it is removed from the list during iteration.

⚠️ Important Concept:
When you modify a list while iterating over it, Python does not re-iterate from the start.
After removing 2, the list becomes:

[1, 3]
The loop then skips the next element because the list indices shift.

print(a)
So the final output is:

[1, 3]
🚨 This is a common Python interview trap and a mistake many beginners make.

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Видео 90% Python Developers Fail This 😱 | List Mutation During Iteration #shorts канала Full Stack Hive