Why is the code i wrote for 'Book Titles' failing?

Question

I can't pass the 4th project even my output is correct. Could you please explain why?

file = open("/usercode/files/books.txt", "r")

x = file.readlines()
y = len(x)

for i in range(y):

A = x[i][0]
B = x[i]
z = len(B) - 1

print(A,z, sep="")

file.close()

Answer 1

Last line doesn't contain '\n'. So subtract 1 from each line except the last one.

Answer 2

Berk , as QTWizard already mentioned, is the problem the trailing new-line sequence. Instead of doing some weird slicing, you can strip off the new-line sequence by using the string method strip(), which removes all kind of whitespaces from the left and right side of a string.

Answer 3

Thank you QTWizard , Lothar i got it now.