erase a linebreak from a string in python

Question

I'm working with .txt files in python.

I have linebreaks in the text files. Example:

line1
line2

I need to get rid of those linebreaks for my code to work.

I tried everything: text.replace("\n", ""), when that didn't work, I wrote out the ord() of every character in the string and found out the linebreak character was 10, so I tried text.replace(chr(10), ""), when even that didn't work, I even got to the point of writing a terrible for cycle, out of despair, to replace the chars, whose ord() == 10, with an empty string.

Nothing works.

Please help, I really need to get rid of those linebreaks.

I'm desperate.

Thank you.

Edit: I need regular spaces (" ") to stay in my text files.

Just call str.rstrip() without arguments, it will clean all whitespaces (including newline). — Olvin Roght
– Olvin Roght, Commented Jan 23, 2022 at 18:37
@OlvinRoght Will it strip regular spaces too, though? I need those to stay in my text files... — Mymokol
– Mymokol, Commented Jan 23, 2022 at 18:46
rstrip removes the trailing whitespace at the end of the line, so you don't have to worry about it removing other whitespace characters. This is what's normally used to remove the '\n' and '\r\n' at the end of lines. — DarrylG
– DarrylG, Commented Jan 23, 2022 at 18:53

score 3 · Accepted Answer · 2022-07-09 09:52:44Z

3

The replace function should work, I'm not sure why it didn't work for you:

with open("test.txt", "r") as test:
    for line in test:
        print(line.rstrip("\n", ""), end="")

edited Jul 9, 2022 at 9:52

answered Jan 23, 2022 at 18:49

user16779014

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16 Comments

Mymokol Over a year ago

Thanks! It seems to have worked! I have no idea why this for loop worked while simple replace() didn't, but thanks a lot!

Mark Ransom Over a year ago

@Mymokol You can prevent print from adding a newline with end=''.

Mark Ransom Over a year ago

And no need to call readlines, you can just use for lines in test:.

user16779014 Over a year ago

@MarkRansom Oops, my bad. Thanks, I didn't know you could do that. I have fixed the post.

Olvin Roght Over a year ago

Answer is accepted, but it's wrong. To remove trailing char you should use .rstrip(), cause .replace() will iterate over all string.

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