Book Titles Code

Question

***Why when running this code do I always get an index error, when x = 0 and I use the variable in the code, but if you just input the actual integer of 0 there is no error. Can someone please explain this.

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

info = file.readlines()

x = 0

while x<5:
charc_ = (len(info[x]))-1
print(charc_)

x+=1

file.close()

Answer 1

In the file books.txt, there are 4 books name means 4 lines and you have written in while that-
while x<5: # Here it goes from 0 to 4
charc_ = (len(info[x]))-1 # Here when x is 4 it is IndexError: list index out of range, because index starts from 0 and there are 4 lines so till 3. So in 4, it gives index error

So you have to write - while x<4:
Then No error