title: read only numbers from text file in python
body: <p>I have a text file with the following entries:</p>
  
  <pre><code> Y-6.352 Z281.116 A3=-1.0 B3=0.0 C3=0.0
  </code></pre>
  
  <p>I want only the numbers of each variable as follows:</p>
  
  <pre><code> -6.352 281.116 -1.0 0.0 0.0
  </code></pre>
  
  <p>Any suggestions on how to approach this? I am new to python and couldn't figure a function to work this out. Any suggestions would be appreciated</p>