title: How to remove any URL within a string in Python
body: <p>I want to remove all URLs inside a string (replace them with "")
  I searched around but couldn't really find what I want.</p>
  
  <p>Example:</p>
  
  <pre><code>text1
  text2
  http://url.com/bla1/blah1/
  text3
  text4
  http://url.com/bla2/blah2/
  text5
  text6
  http://url.com/bla3/blah3/
  </code></pre>
  
  <p>I want the result to be:</p>
  
  <pre><code>text1
  text2
  text3
  text4
  text5
  text6
  </code></pre>