Write pure string to file in python

Question

I have str = 'some words\n' and i want to print it to file with

with open(newfile, 'a') as the_file:
    the_file.write(str)

how can i write literally just 'some words\n' not 'some words' with enter at the end?

You have to escape the backslash as a double backslash or use a raw string: str = r'some words\n' . BTW str is a bad choice for a variable name, it will mask the built-in str type. — Klaus D.
– Klaus D., Commented Dec 28, 2017 at 7:19

Denise Fan · Accepted Answer · 2017-12-28 07:22:07Z

2

Please try doule back slash like str = "some words \\n" .

answered Dec 28, 2017 at 7:22

Denise Fan

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johnII · Accepted Answer · 2017-12-28 07:21:08Z

1

You need to escape the escape character:

str = 'some words\n'
with open(newfile, 'a') as the_file:
    str = str.replace("\n","\\n")
    the_file.write(str)

answered Dec 28, 2017 at 7:21

johnII

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1 Comment

Deniz Kaplan Over a year ago

maybe you reconsider about variable naming. Naming a variable as str will change use of str's default behaviour.

Inian · Accepted Answer · 2017-12-28 07:23:41Z

1

You can use the raw-string r'..' construct to do that, also would be nice to use the file-open constructs within the try catch blocks and close the open file descriptor once the write is complete.

try:
    str = r'some words\n'
    with open('newfile', 'a') as fd:
        fd.write(str)
        fd.close()

except IOError as e:
    print('unable to open file newfile in append mode')

answered Dec 28, 2017 at 7:23

Inian

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Deniz Kaplan · Accepted Answer · 2017-12-28 07:48:22Z

0

string = "some words\n"

with open("temp.txt", "w+") as fp:

        temp = string[:-2] + r'\n'

        fp.write(temp)

edited Dec 28, 2017 at 7:48

Deniz Kaplan

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answered Dec 28, 2017 at 7:27

Siva

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Comments

VPfB · Accepted Answer · 2017-12-28 08:45:45Z

0

You could use the string representation without the quotes. It will work with all escape sequences, not only the '\n':

w = "some\twords\n"
repr(w)[1:-1] # some\twords\n

However there is an issue with quotes:

w = '''single'double"quote'''
repr(w)[1:-1] # single\'double"quote

answered Dec 28, 2017 at 8:45

VPfB

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