title: Python counting in nested forloops
body: <p>I'm brand new to python and have an assignment to "Use two nested for loops. Count up in the outer for loop from 0 to 9 and then at every step count back down to zero."</p>
  
  <p>The answer is supposed to be this:</p>
  
  <pre><code>i= 0
  k= 0
  i= 1
  k= 1
  k= 0
  i= 2
  k= 2
  k= 1
  k= 0
  i= 3
  k= 3
  k= 2
  k= 1
  k= 0
  i= 4
  k= 4
  k= 3
  k= 2
  k= 1
  k= 0
  i= 5
  k= 5
  k= 4
  k= 3
  k= 2
  k= 1
  k= 0
  i= 6
  k= 6
  k= 5
  k= 4
  k= 3
  k= 2
  k= 1
  k= 0
  i= 7
  k= 7
  k= 6
  k= 5
  k= 4
  k= 3
  k= 2
  k= 1
  k= 0
  i= 8
  k= 8
  k= 7
  k= 6
  k= 5
  k= 4
  k= 3
  k= 2
  k= 1
  k= 0
  i= 9
  k= 9
  k= 8
  k= 7
  k= 6
  k= 5
  k= 4
  k= 3
  k= 2
  k= 1
  k= 0
  </code></pre>
  
  <p>So every time the i counts up, k counts down starting from the previous value of i. I believe I understand the general concept of nested forloops, but I'm not sure if my problem lies in identifying the range for k or in printing i and/or k. Here's what I have:</p>
  
  <pre><code>for i in range(0,10):
  for k in range(i+1):
      print 'i=',i,''
      print 'k=',k,''
  </code></pre>
  
  <p>But it doesn't give me what I need. It seems like k is going up when I run it, probably because of the (i+1) but it's the closest answer I've gotten so far and I've been having a fair amount of trouble. I'm not looking for the answer itself, but if someone could point me in the right direction that would be very helpful. Thanks!</p>