title: sys.stdout.writelines("hello") and sys.stdout.write("hello")
body: <p>What is the difference between the following two commands?</p>
  
  <pre><code>In [57]: sys.stdout.writelines("hello")                                                                           
  hello
  In [58]: sys.stdout.write("hello")                                                                                
  Out[58]: hello5
  </code></pre>