title: How to parse a string without comma to python list?
body: <p>I want to parse a string like this to a python list:</p>
  
  <pre class="lang-py prettyprint-override"><code>"[[ 3.14  2.12] [1.11 2.22 ] [10.0 12.0]]"    # Not separated by comma
  </code></pre>
  
  <p>I tried to use <code>eval()</code> function, but it failed with invalid syntax.
  Is there another way to easily parse such a string into python list?</p>
  
  <p>What I hope to achieve is to obtain a real python list like this:</p>
  
  <pre><code>mylist = [[ 3.14,  2.12], [1.11, 2.22 ], [10.0, 12.0]]
  </code></pre>
  
  <p>and <code>mylist[0]</code> will return [3.14, 2.12] and <code>mylist[0][1]</code> will return 2.12.</p>