title: python's re: return True if string contains regex pattern
body: <p>I have a regular expression like this:</p>
  
  <pre><code>regexp = u'ba[r|z|d]'
  </code></pre>
  
  <p>Function must return True if word contains <strong>bar</strong>, <strong>baz</strong> or <strong>bad</strong>.
  In short, I need regexp analog for Python's</p>
  
  <pre><code>'any-string' in 'text'
  </code></pre>
  
  <p>How can I realize it? Thanks!</p>