title: How can I increase index i in range python in if-clause?
body: <pre><code>a = "a4b4t8a3a3w2q5a8o9i8"
  for i in range(0, len(a)):
    if a[i].isdigit() is False:
      print("detected letter")
      i +=5 #this does not increase the i by 5 each tiem I find a letter
  </code></pre>
  
  <p>This does not help the index 'i' jump forward by 5. Why?</p>