script_24.py - While Loop with Counter

Code

#!/usr/bin/env python3
"""While loop with counter"""

count = 0
limit = int(input("Count up to: "))

while count < limit:
    count += 1
    print(count)

print("Done counting!")

Explanation

Line 4: count = 0 - Counter variable initialized before loop - Integer type - Must exist before while condition checked

Line 5: limit = int(input("Count up to: ")) - Upper bound for counting

Line 7: while count < limit: - Loop continues while count is less than limit - Condition checked before each iteration - If limit=5: runs while count is 0,1,2,3,4 (stops when count=5)

Line 8: count += 1 - Increments counter (must be inside loop) - Without this, loop would be infinite (count never changes) - Ensures condition eventually becomes False - += equivalent to count = count + 1

Line 9: print(count) - Prints current value after increment - Prints 1, 2, 3, 4, 5 (not 0)

Line 11: print("Done counting!") - Executes after loop exits (when count >= limit) - Not indented under while