title: Python search text file and count occurrences of a specified string
body: <p>I am attempting to use python to search a text file and count the number of times a user defined word appears. But when I run my code below instead of getting a sum of the number of times that unique word appears in the file, I am getting a count for the number lines within that file contain that word. </p>
  
  <p>Example: the word 'bob' exists 56 times in the text file, appearing in 19 of the total 63 lines of text.  When I run my code the console prints '19'.</p>
  
  <p>I am guessing I need to do something different with my split method?  I am running Python 2.7.10.</p>
  
  <pre><code>user_search_value = raw_input("Enter the value or string to search for: ")
  
  count = 0    
  
  with open(file.txt, 'r') as f:
      for word in f.readlines():
          words = word.lower().split()
          if user_search_value in words:
              count += 1
      print count
  </code></pre>