title: Python: Converting string to timestamp with microseconds
body: <p>I would like to convert string date format to timestamp with microseconds 
  I try the following but not giving expected result:</p>
  
  <pre><code>"""input string date -&gt; 2014-08-01 04:41:52,117
  expected result -&gt; 1410748201.117"""
  
  import time
  import datetime
  
  myDate = "2014-08-01 04:41:52,117"
  timestamp = time.mktime(datetime.datetime.strptime(myDate, "%Y-%m-%d %H:%M:%S,%f").timetuple())
  
  print timestamp
  &gt; 1410748201.0
  </code></pre>
  
  <p>Where did the milliseconds go?</p>