I have the following string:
string = """
Hello World
123
HelloWorld
"""
I want to clear all the line-breaks from the string in python.
I tried
string.strip()
But it's not working as desired.
What I should do?
I'm using python 3.3
Thanks.
5 Answers
I would like to point out that, depending on how that triple-quoted string is being used, you could avoid the issue entirely.
In Python triple-quoted strings, you can put a backslash ("\") at the end of a line to ignore the line break. In other words, you can use it to put a line break at that spot in your code without making a line break in your string.
For example:
"""line 1 \
line 2 \
line 3"""
will actually become
line 1 line 2 line 3
if printed or written to some file or other output.
Using it this way can eliminate any need for a function to replace the line breaks, making your code clearer and cleaner.
EDIT:
If you're using backslash line continuations like this, you can also use simple single-quoted strings the same way;
"line 1 \
line 2 \
line 3"
is also equivalent to
line 1 line 2 line 3
2 Comments
Variadicism
@AllDaniSpringer You could also do a single quoted string and it would work the same way; I just kept the triple quotes because that's what the question was asking about. I'll make an edit to mention that, though.
str.strip removes whitespace from the start and the end of the string.
>>> string
'\nHello World\n123\nHelloWorld\n'
>>> string.strip()
'Hello World\n123\nHelloWorld'
If you want to remove the new line characters inside of the string, you can replace them by something else using str.replace:
>>> string.replace('\n', ' ')
' Hello World 123 HelloWorld '
Comments
Use translate instead of replace for this kind of operation.
>> string.translate(None, "\n")
Hello World123HelloWorld
You will realize how fast translate is when you work with big files.
Comments
Simple str.replace:
string.replace('\n', ' ')
Comments
The main question is already answered, but I would like to add that if you plan on using the individual lines you might be better off doing this -
string = """
Hello World
123
HelloWorld
"""
for line in string.strip().split('\n'):
print(line)
# do something with the line
Output from above code -
Hello World
123
HelloWorld
4 Comments
poke
That’s no different to
print(string.strip()).
shad0w_wa1k3r
But what if he wants to use individual lines?
poke
That would be a different problem and nothing in the question suggests OP wants to do that.
shad0w_wa1k3r
I just wanted to show another way of doing it while describing it's specific use. Partial answer.
string.replace('\n', '')not working?