title: How to replace unicode Chinese characters in Python?
body: <p>say I have a string like this</p>
  
  <pre><code>example = u"这是一段很蛋疼的中文"
  </code></pre>
  
  <p>I wanna replace <code>蛋</code> with <code>egg</code>, how can I finish this?</p>
  
  <p>It seems <code>example.replace()</code> is useless. 
  And I tried regex, using <code>re.match(u"蛋", "")</code> returns none.</p>
  
  <p>I searched a lot, it seems I should use method like <code>.decode</code>, but still it doesn't work, even <code>example.replace(u"\u86CB", "egg")</code> is useless.</p>
  
  <p>So is there a way to process Chinese characters?</p>