title: Python: Plot data against time in X axis
body: <p>I got data like this and i wanna plot temperature vs time</p>
  
  <pre><code>time=`['16:00:00', '16:00:00.013733', '16:00:00.020599', '16:00:00.034332', 
  '16:00:00.041199', '16:00:00.048065', '16:00:00.061798', '16:00:00.068665', 
  '16:00:00.075531', '16:00:00.089264', '16:00:00.102997', '16:00:00.109863', 
  '16:00:00.123596', '16:00:00.130463', '16:00:00.137329', '16:00:00.151062', 
  '16:00:00.157928', '16:00:00.171661', '16:00:00.178528', '16:00:00.192261']`
  
  temperature=`[ 691.70001221,  691.54998779,  691.90002441,  691.79998779,
                 691.29998779,  691.65002441,  691.59997559,  691.79998779,
                 691.95001221,  692.34997559,  691.59997559,  691.34997559,
                 690.90002441,  691.40002441,  691.95001221,  690.84997559,
                 691.54998779,  691.70001221,  691.95001221,  691.59997559]`
  </code></pre>
  
  <p>i tried to this</p>
  
  <pre><code>import datetime as DT
  datetimes = [DT.datetime.strptime(t, "%H:%M:%S") for t in time]
  </code></pre>
  
  <p>and i stop here because it appears an error</p>
  
  <pre><code>ValueError: unconverted data remains: .013733
  </code></pre>
  
  <p>i think referred to decimals of seconds in the time arrange</p>
  
  <p>Thanks</p>