Replace a specific character from string

Question

I know how to replace characters, but I would like to have the instance done once. My code replace's all the characters before.

string = "Forever9999"

string = string[:-4] + string[-4:].replace("9", "1")

Which in the end would be Forever1999, but I get Forever1111

Any help appreciated.

`string = string[:-4] + string[-4:-3].replace("9", "1") + string[-3:]` - you are substitution the whole remainder of the string using `string[-4:]` — Patrick Artner, Nov 04 '21 at 10:01
See https://stackoverflow.com/questions/1228299/changing-one-character-in-a-string — Sefan, Nov 04 '21 at 10:07

score 0 · Answer 1 · answered Nov 04 '21 at 10:19

0

You can pass another paramter to str.replace(old, new[, count]), which is the max count of occurrences you want to replace:

string.replace("9", "1", 1)
# 'Forever1999'

answered Nov 04 '21 at 10:19

user2390182

1 Answers1