New in Python. Have question on my code.

[ztx19981023]

The problem is i have to print out the average length of words in each lines in a txt documents.

My code so far: i know how to count the number in each line and how many words in each line, but have no idea how to start a average length of words.

count=0
with open('win95coolest.txt') as book:
    for lines in book:
        count+=1
        print(count,(len(lines.split())), lines)