i can be wrong but i guess that inserting at the begining does not cause troubles as insertion at index 0 is constant (time does not scale with number of data)
Abdur-Rahmaan Janhangeer http://www.pythonmembers.club | https://github.com/Abdur-rahmaanJ Mauritius -- https://mail.python.org/mailman/listinfo/python-list
