On Sun, 2018-11-25 at 07:43 -0800, Muhammad Rizwan wrote: > for each word in each line how can we check to see if a word is already > present in a list and if it is not how to append that word to a new list
For your problem consider a set. https://en.wikipedia.org/wiki/Set_theory For the python syntax consider the py3 tutorial. https://docs.python.org/3/tutorial/index.html HTH -- https://mail.python.org/mailman/listinfo/python-list
