[Solved] Why do we use a while loop in Python instead of a for loop? — Ans: Because we don't always know how many times the loop should run before starting. | Python

Python - While Loop

Why do we use a while loop in Python instead of a for loop?

ABecause <code>for</code> loops cannot repeat code.

BBecause we don't always know how many times the loop should run before starting.

CBecause <code>while</code> loops are faster than <code>for</code> loops.

DBecause <code>while</code> loops do not need a condition.

Step-by-Step Solution

Solution:

Step 1: Understand the difference between while and for loops
for loops run a fixed number of times, while while loops run as long as a condition is true.
Step 2: Identify when while loops are needed
while loops are useful when the number of repetitions is unknown before starting.
Final Answer:
Because we don't always know how many times the loop should run before starting. -> Option B
Quick Check:
Unknown repetitions = use while loop [OK]

Quick Trick: Use while when repeat count is unknown before start [OK]

Common Mistakes:

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Why do we use a while loop in Python instead of a for loop?