How do I convert a list in quotes ( '[1,2,3]' ) to a proper list ( [1,2,3] ) in python? : <p>The problem is very fundamental. All I want to know is if there is a function to perform the task without appending to a new list.</p>

<p>I tried using loop but it will become a little complex for cases like...
'[1,2,3],[4,5,6]'</p>
