title: Robot Framework: Calling external Keyword from Python file
body: <p>I have a Keyword created in external python file which takes only one argument. When called in Ride, I get the error message (displayed below):</p>
  
  <blockquote>
    <p>Keyword 'CustomUtilityLibrary.CUSTOM Get List Count' expected 1 argument, got 6.</p>
  </blockquote>
  
  <p>This is the keyword definition</p>
  
  <pre><code>def CUSTOM_Get_List_Count(self, s1):
      """Returns the total number of elements in a list
      """
      return len(s1)
  </code></pre>