Consider the file poem.txt and predict the output of following code fragment. What exactly is following code fragment doing?

Q. Consider the file poem.txt and predict the output of following code fragment. What exactly is following code fragment doing?

f = open ("poemBTH.txt", "r")

nl = 0

for line in f:

    nl += 1

print (nl)

Answer :- This program reads the number of lines present in the file "poem.txt".

For Example if poem .txt file content this :-

This is
Path Walla
Website 
Thank you : )

Our Output :-

4
>>>