title: TypeError: unsupported operand type(s) for &: 'str' and 'int' on compile re
body: <p>Good Afternoon, I have a problem with regular expressions.
  I want to pull a value to the following expression:</p>
  
  <pre><code>findall_localizacao_tema = re.compile (':.? (*)' + findall_tema [0] + '/', arquivo_salva)
  </code></pre>
  
  <p>More time to run the code it returns me the following error:</p>
  
  <pre><code>Traceback (most recent call last):
    File "index.py", line 75, in &lt;module&gt;
      main()
    File "index.py", line 68, in main
      puxar_.Wordpress(executa_comandos[0])
    File "/home/arthur/Projeto-Secreto-do-Arthur/parser.py", line 29, in Wordpress
      findall_localizacao_tema = re.compile(': (.*?)' + findall_tema[0] + '/',arquivo_salva)
    File "/usr/lib/python3.4/re.py", line 223, in compile
      return _compile(pattern, flags)
    File "/usr/lib/python3.4/re.py", line 279, in _compile
      bypass_cache = flags &amp; DEBUG
  TypeError: unsupported operand type(s) for &amp;: 'str' and 'int'
  </code></pre>
  
  <p>What do you think can be already that I'm not adding an integer value more string but a list more strings.</p>