title: Python Remove all Lines starting with specific word
body: <p>Suppose I have a string that contains:</p>
  
  <pre><code>ASFksdfasf a
  Oh sadfafas
  Yeasd: asdfaf
  Oh asdfaf
  </code></pre>
  
  <p>And I want to delete the lines from the string that start with "Oh". How exactly would I approach this? Right now I know I can do something in regex similar to this:</p>
  
  <pre><code>\b[Oh]\S*
  </code></pre>
  
  <p>But I am unsure on how to store this result to a variable, and even then, I believe it only finds the words, not deletes them.</p>