Bugs

Infinite Loops in Python: Causes and Fixes

An infinite loop runs forever, consuming CPU until the process is killed. They are caused by a loop condition that never becomes false or missing increment logic.


❌ Infinite While Loop

count = 0
total = 0
while count < 10:
    total += count
    # Bug: count is never incremented!

✅ Fixed Loop

count = 0
total = 0
while count < 10:
    total += count
    count += 1  # Ensures loop terminates
print(total)
💡

Pro tip: Prefer for loops over while when the number of iterations is known. Add a max_iterations safety counter for complex termination conditions.

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