I wanna make wordlist cutter

[TheDigitalroot]

I imagine to make a wordlist cutter program with python pgrogramming . but I don't know too much with it . 

I think , first , I will make a user input as a wordlist with command 

eg , C:\john\Desktop\wordlist.txt

and than I will use a string to count

eg , Enter your count: 

at that time , my program assume count of numbers like notepad ++ which inlcude in wordlist.txt that i input with command .

How can i code for that , please guide me and help me .