How do you replace one backslash in python?

Question

No need to use str.replace or string.replace here, just convert that string to a raw string:

Nội dung chính Show

How do I find and replace backslash in Python?
How do you replace a backslash in a string in Python?
How do you remove a single backslash from a string in Python?
How do you replace a backslash?

>>> strs = r"C:\Users\Josh\Desktop\20130216"
           ^
           |
       notice the 'r'

Below is the repr version of the above string, that's why you're seeing \\ here. But, in fact the actual string contains just '\' not \\.

>>> strs
'C:\\Users\\Josh\\Desktop\\20130216'

>>> s = r"f\o"
>>> s            #repr representation
'f\\o'
>>> len(s)   #length is 3, as there's only one `'\'`
3

But when you're going to print this string you'll not get '\\' in the output.

>>> print strs
C:\Users\Josh\Desktop\20130216

If you want the string to show '\\' during print then use str.replace:

>>> new_strs = strs.replace('\\','\\\\')
>>> print new_strs
C:\\Users\\Josh\\Desktop\\20130216

repr version will now show \\\\:

>>> new_strs
'C:\\\\Users\\\\Josh\\\\Desktop\\\\20130216'

Thread Rating:

1 Vote(s) - 1 Average
1
2
3
4
5

Replace Single Backslash with Double Backslash in python

Mar-19-2017, 07:56 AM (This post was last modified: Mar-19-2017, 07:56 AM by saswatidas437.)

I have a need to replace single backslashes with double backslashes. I know that the replace method of the string object can be used, however I'm not able to figure out the correct combination given that the backslash serves as an escape character. Adding one more point below string is not constant below string i will read from a config file so i can't use python raw string r'\\[string]\[string]\[string]'

\\[string]\[string]\[string]
Needs to become
\\\\[string]\\[string]\\[string]

Example \\user\build\field to \\\\user\\build\\field

Posts: 4,231

Threads: 97

Joined: Sep 2016

Reputation: 273

>>> single = r'\folder\file'
>>> print(single)
\folder\file
>>> double = single.replace('\\', '\\\\')
>>> print(double)
\\folder\\file

Basically, any time you need to indicate a single backslash, you use a double backslash.

Posts: 687

Threads: 37

Joined: Sep 2016

Reputation: 24

See below. Note the difference between the interactive interpreter printing the results (uses repr()) and the output of explicit print statements (that use str()).

Output:
>>> x="a\\b\\c"
>>> x
'a\\b\\c'
>>> print x
a\b\c
>>> x.replace('\\','\\\\')
'a\\\\b\\\\c'
>>> print x.replace('\\','\\\\')
a\\b\\c
>>>

But... doing this is seldom required, and when it is (escaping string in regular expressions, for instance), this alone is not sufficient, and there is usually a function that does a complete job (usually called quote() or escape()).

Unless noted otherwise, code in my posts should be understood as "coding suggestions", and its use may require more neurones than the two necessary for Ctrl-C/Ctrl-V.
Your one-stop place for all your GIMP needs: gimp-forum.net

Possibly Related Threads…
Thread	Author	Replies	Views	Last Post
	change backslash into slash in a path	paul18fr	7	398	Jul-21-2022, 04:26 PM Last Post: deanhystad
	Setup Portable Python on Windows for script starts with double clicks?	pstein	0	618	Feb-18-2022, 01:29 PM Last Post: pstein
	python regex: get rid of double dot	wardancer84	4	1,298	Sep-09-2021, 03:03 PM Last Post: wardancer84
	Find and replace in files with regex and Python	Melcu54	0	1,248	Jun-03-2021, 09:33 AM Last Post: Melcu54
	Remove single and double quotes from a csv file in 3 to 4 column	shantanu97	0	5,095	Mar-31-2021, 10:52 AM Last Post: shantanu97
	Single digits seem to be greater than double digits	Frosty_GM	4	1,893	Nov-20-2020, 10:13 AM Last Post: DeaD_EyE
	Deny backslash using regex	JohnnyCoffee	1	1,111	Mar-18-2020, 10:21 PM Last Post: snippsat
	Cannot Remove the Double Quotes on a Certain Word (String) Python BeautifulSoup	soothsayerpg	5	5,558	Oct-27-2019, 09:53 AM Last Post: newbieAuggie2019
	merging sublist into single list in python	abhishek8singhai	8	6,567	Mar-22-2019, 11:46 PM Last Post: micseydel
	Replace characters from file in Python 2.7	melmouja	2	1,844	Feb-04-2019, 01:32 PM Last Post: melmouja

How do I find and replace backslash in Python?

To replace backslashes in a string with Python, the easiest way is to use the Python built-in string replace() function. string_with_backslashes = "This/is/a/string/with/backslashes." string_with_underscores = string_with_backslashes.

How do you replace a backslash in a string in Python?

A forward-slash (/) in a Python string can be replaced by a backslash (\) using the String replace() function, translate() method, or regular expression(re..

1 Using replace().

2 Using translate() function..

3 Using regular expression (re.sub()).

4 Backslash in Python..

How do you remove a single backslash from a string in Python?

Using replace() Function to Remove Backslash from String in Python. The replace() can be utilized to remove an escape sequence or just a backslash in Python by simply substituting it with space in Python.

How do you replace a backslash?

To replace all backslashes in a string: Call the replaceAll() method, passing it a string containing two backslashes as the first parameter and the replacement string as the second. The replaceAll method will return a new string with all backslashes replaced by the provided replacement.

programming python Replace backslash Python Replace to Python