title: Python - convert list of tuples to string
body: <p>Which is the most pythonic way to convert a list of tuples to string?</p>
  
  <p>I have:</p>
  
  <pre><code>[(1,2), (3,4)]
  </code></pre>
  
  <p>and I want:</p>
  
  <pre><code>"(1,2), (3,4)"
  </code></pre>
  
  <p>My solution to this has been:</p>
  
  <pre><code>l=[(1,2),(3,4)]
  s=""
  for t in l:
      s += "(%s,%s)," % t
  s = s[:-1]
  </code></pre>
  
  <p>Is there a more pythonic way to do this?</p>