title: What does the "0b" mean at the begining of the byte 0b1100010?
body: <p>As part of a small python project I'm working on, I needed to convert text to a binary string. To accomplish this I used </p>
  
  <pre><code>list(map(bin,bytearray(message,'utf8')))
  </code></pre>
  
  <p>The result was <code>0b1100010</code> and I get the <code>1100010</code> part, but what does the <code>0b</code> part mean?</p>