Got It!!!, Finally. Thanks Dave So, the control goes back to the place after the recursive function is called once the no. of element is equal to one and starts merging after which it will again start to split the remaining items.
Thank you Chris for your multiple explanations. It was also very useful. One final question, Is there a way to edit the message once it has been posted? -- http://mail.python.org/mailman/listinfo/python-list
