title: for range - invalid syntax of loop
body: <pre><code>def amp1(array):
      for i in range (0,len(array),400)
      amp1 [array]= abs(max(array[i:i+400]))
      return amp1
  
  print(amp1(node1[3]))
  </code></pre>
  <p>I get this response:</p>
  <pre><code>File &quot;&lt;ipython-input-53-972793b81fd0&gt;&quot;, line 7
      for i in range (0,len(array),400)
                                       ^
  SyntaxError: invalid syntax
  </code></pre>