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[Solved] Getting PEP8 “invalid escape sequence” warning trying to escape parentheses in a regex

Hello Guys, How are you all? Hope You all Are Fine. Today I get the following error Getting PEP8 “invalid escape sequence” warning trying to escape parentheses in a regex in Python. So Here I am Explain to you all the possible solutions here.

Without wasting your time, Let’s start This Article to Solve This Error.

How Getting PEP8 “invalid escape sequence” warning trying to escape parentheses in a regex Error Occurs?

Today I get the following error Getting PEP8 “invalid escape sequence” warning trying to escape parentheses in a regex in Python.

How To Solve Getting PEP8 “invalid escape sequence” warning trying to escape parentheses in a regex Error ?

  1. How To Solve Getting PEP8 “invalid escape sequence” warning trying to escape parentheses in a regex Error ?

    To Solve Getting PEP8 “invalid escape sequence” warning trying to escape parentheses in a regex Error You probably are looking for this which would mean your string would be written as string = r")(" which would be escaped. Though that is from 2008 and in python 2 which is being phased out. What the r does is make it a “raw string”

Solution 1


You probably are looking for this which would mean your string would be written as string = r")(" which would be escaped. Though that is from 2008 and in python 2 which is being phased out. What the r does is make it a “raw string”

See: How to fix “<string> DeprecationWarning: invalid escape sequence” in Python? as well.

What you’re dealing with is string literals which can be seen in the PEP 8 Style Guide

UPDATE For Edit in Question:

If you’re trying to split on “)(” then here’s a working example that doesn’t throw PEP8 warnings:

import re

string = r"Hello my darling)(!"
print(string)
string = re.split(r'\)\(', string)
print(string)

Which outputs:

Hello )(world!
['Hello ', 'world!']

Or you can escape the backslash explicitly by using two backslashes:

import re

string = r"Hello )(world!"
print(string)
string = re.split('\\)\\(', string)
print(string)

Which outputs the same thing:

Hello )(world!
['Hello ', 'world!']

Summery

It’s all About this issue. Hope all solution helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which solution worked for you? Thank You.

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