title: Reading a list of lists from a file as list of lists in python
body: <p>I collected data in the form of list of lists and wrote the data into a text file. The data in the text file looks like </p>
  
  <pre><code>[[123231,2345,888754],[223467,85645]]
  </code></pre>
  
  <p>I want to read it back and store in a list of lists in my program. But when I do <code>read()</code> from the file and try creating a flat list then it takes everything as a string and the interpretation changes totally and i am not able to query the result I get after reading as normal list of lists in python.</p>
  
  <p>Can someone help me with reading the file and storing in the same format as list of lists?</p>
  
  <p>Thank you!</p>