title: What does index mean in python?
body: <p>Perhaps, it sounds like a stupid question. However, I have to learn what index is because I want to learn python.</p>
  
  <p>For example, in a website, I saw this:</p>
  
  <blockquote>
    <p>The method find() determines if string str occurs in string, or in a
    substring of string if starting index beg and ending index end are
    given.</p>
  </blockquote>
  
  <p><a href="http://www.tutorialspoint.com/python/string_find.htm" rel="noreferrer">http://www.tutorialspoint.com/python/string_find.htm</a></p>
  
  <p>What does "index" mean here? I would like you to explain it to me like you are explaining something to a child. Because my comprehension is somewhat bad. Anyway. You can even provide examples to explain what index is.</p>
  
  <p>Many thanks.</p>