I am a beginner.Help out with this question.The following code causes an infinite loop. Can you figure out what’s missing and how to fix it?

Question

1  def print_range(start, end):
2     # Loop through the numbers from start to end
3   n = start
4   while n <= end:
5       print(n)
6  print_range(1, 5)  # Should print 1 2 3 4 5 (each number on its own line)

Line 6 should print "1 2 3 4 5" (each number on its own line), but doesn't. Why is that?

@CoolBots [Python doesn't support i++ notation](https://stackoverflow.com/a/2632687/9710338) — LorenzBung, Aug 14 '20 at 08:31

score 2 · Answer 1 · answered Aug 14 '20 at 08:29

2

n always has the value of start, because it is never incremented in the while loop. In comparison to the for-loop, the while doesn't automatically change the variable you iterate over.

So, you need between lines 5 and 6:

n += 1

answered Aug 14 '20 at 08:29

LorenzBung

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score 1 · Answer 2 · edited Nov 03 '20 at 13:27

1

 1  def print_range(start, end):
 2    n = start
 3    while n <= end:
 4      print(n)
 5      n+=1
 6  print_range(1, 5)  # Should print 1 2 3 4 5 (each number on its own line)

edited Nov 03 '20 at 13:27

Elletlar

2,991
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answered Nov 03 '20 at 12:55

Chirag

11
3

2

Please add some explanation to your answer such that others can learn from it – Nico Haase Nov 03 '20 at 13:31

I am a beginner.Help out with this question.The following code causes an infinite loop. Can you figure out what’s missing and how to fix it?

2 Answers2