title: Remove 0x from Hex String
body: <pre><code>val1 = hex(100)
  val2 = hex(50)
  val3 = hex(int(val1, 16) - int(val2, 16))
  
  hex_str = str(val1) + str(val2) + str(val3)
  
  print(hex_str)
  </code></pre>
  
  <p>In the above example, my end goal is to have a string that looks like this: <code>643232</code></p>
  
  <p>Currently however the result I am getting has the string as <code>0x640x320x32</code></p>
  
  <p>Is there a way in Python to remove the <code>0x</code> from the beginning of a hex string?</p>
  
  <p>Or will I have to remove it using a regular expression with something like <code>re.sub()</code>?</p>
  
  <p>EDIT: I also need to make sure I am always getting too characters.  So for example if I was looking for the hex value of 5 I'd get <code>05</code></p>