title: Extracting data from text files using python
body: <p>I have a text file which contains a line like this:</p>
  
  <pre><code>Component Sizing Information, AirTerminal:SingleDuct:VAV:Reheat, SPACE2-1 VAV REHEAT, Design Size Maximum Flow per Zone Floor Area during Reheat [m3/s-m2], 1.31927E-003
  </code></pre>
  
  <p>I want to extract the number at the end of the line (1.31927E-003) when the statement before the number is (just an example!): </p>
  
  <pre><code>Design Size Maximum Flow per Zone Floor Area during Reheat [m3/s-m2]
  </code></pre>
  
  <p>In fact, there are several of these key statements in the text file which I need to extract the numbers coming right after them, respectively. </p>
  
  <p>What library and method do you recommend? (using python 3). Thanks!</p>