How can i exclude "\n" from being counted by len(list()) in Python?

Question

I am working in Python.
I have booktitles in the file and my task is to print the first letter of the title and the length of the title. The "readlines" operation outputs every title in a separate line by "\n" and i do not know how to exclude this from being counted by "len()".
This is what i have so far.

file = open("/usercode/files/books.txt", "r")
list = file.readlines()
for line in list:
print(line[0] + str(len(line)))
file.close()

Answer 1

use .strip()

https://www.sololearn.com/Discuss/2589736/?ref=app

Answer 2

[Edited with bug fix]
The way I solved this is to use the string replace command like "string".replace("\n","") functionality.

Thus for your code:
file = open("/usercode/files/books.txt", "r")
list = file.readlines()
for line in list:
line = line.replace("\n","")
print(line + str(len(line)))
file.close()

Let me know if that helps!

Answer 3

Magnus ,

the issue you are having is that the lines read from the file all (except the last one) have a trailing new-line sequence (\n), that also counts as a character.

this can be removed by using the string method strip(). it removes all leading and trailing whitespace (new-line sequences are considered as whitespace).

...
print(line[0] + str(len(line.strip())))
...

Answer 4

Katya Ergieva ,

your hint does not work, did you try it before posting?

Answer 5

Magnus ,

if you still have trouble with this exercise, please post the latest version of your code.

can you also post: tutorial name, exercise name / number

Answer 6

Mangus, great catch, I edited it to remove two bugs, not saving result and a double dot.

Answer 7

Melba55 what do you mean? I gave the answer and I asked this question a year ago with lots of relevant help. What more do you need?

Answer 8

Thank you, Slick!

Answer 9

Hey jht,

i tried your version but that actually leaves me with the same mistake as before, that "len" still counts "\n".

Answer 10

Hi, you could do \\n and dont use quotations

Answer 11

Lothar, yes, and I think it even said it in a lesson in the Beginner Python course