I am trying to replace characters in a string using re.sub. However, i am unable to replace \ in the string.

import re
find = '[/:*\?"<>|]'

s = "he*l\l/*o<>|"

rp = re.sub(find,"a",s)
print(rp)

output

heal\laaoaaa

Is this a normal behavioir for regex re.sub function?

CodePudding user response：

The problem is with escape character \.

Please it with [/:*\\\?"<>|]

CodePudding user response：

you need to escape the \ character you do this by doing \\ this will allow the regex to replace the \

this is because the \ character is used for escaping character such as the " in a string so to use the \ character you have to first escape itself.

making your fixed search string

find = '[/:*\\?"<>|]'