Explanation:
Step 1: List Creation
lst = [1, 2, 3, 4]
A list named lst is created.
It contains four elements.
Initial List
[1, 2, 3, 4]
Step 2: Start of the For Loop
for i in lst:
Python starts iterating over the list.
The loop takes each element one by one from the list.
But here we are modifying the list while iterating, which causes unusual behavior.
Step 3: First Iteration
i = 1
Current list:
[1, 2, 3, 4]
Execution:
lst.remove(i)
Removes 1
New list:
[2, 3, 4]
Step 4: Second Iteration
Now the loop moves to the next index, not the next value.
Current list:
[2, 3, 4]
Next element picked:
i = 3
(2 is skipped because list shifted after removal)
Execution:
lst.remove(3)
New list:
[2, 4]
Step 5: Loop Ends
Now Python tries to go to the next index, but the list length has changed.
Final list:
[2, 4]
Final Output
print(lst)
Output:
[2, 4]
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