Fastest way to update a character in a string in Python

Question

I have to replace every '%' character with '%%' in a string and as string are immutable i am doing list(string) and then replace every '%' with '%%'. But string can be huge(len(string)>2000) and as a result list can be huge that can slow down so i want to know the fastest way to do that in python 2.7

Strings are immutable in Python. Your best bet is `.replace` — dawg, Jul 18 '18 at 01:29

score 0 · Accepted Answer · answered Jul 18 '18 at 01:27

Why don't you just use replace method on string? Use the following code

a = "hello %"
print(a.replace("%","%%")

There is one more way to this, and that is to use Regex. but, go through This SO Post to know why string replace method is preferred over regex

Fastest way to update a character in a string in Python

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