title: Concatenate backslash on python
body: <p>I'm new to python so forgive me if this sounds simple. I want to join a few variables to produce a path. Like this:</p>
  
  <pre><code>AAAABBBBCCCC\2\2014_04\2014_04_01.csv
  
  Id + '\' + TypeOfMachine + '\' + year + '_' + month + '\' + year + '_' + month + '_' + day + '.csv'
  </code></pre>
  
  <p>How do I concatenate this? I putted single quotes around underline or backslash, but stackoverflow omits/modifies them.</p>