CODEWITHSUNDEEP
pythonpython-3.xregexstring
wannabedatasth
wannabedatasth

Reputation: 79

Remove a combination of characters in a string python

Regex newbie alert please be gentle. I am having strings like:

sent = 'The type of vehicle FRFR7800 is the fastest'

I want to remove the duplicate occurence of the substring 'FR'. So the string should be:

sent = 'The type of vehicle FR7800 is the fastest'.

I think I have spent more than 2 hours reading/trying the tutorial of re and the more pythonic way of groupby and I really can't figure it out. I also searched the similar questions and most of the results are covering the case when there are I repeated same characters e.g. having strings like 'dddddaaaaaggggg' etc. A couple of them helped but I ended up deleting the all occurences of 'FR'.

For example I tried:

sent = re.sub(r'FC{1}', '', sent)
sent = re.sub(r'FC|', '', sent)

These removed completely the occurence of 'FR'. When I changed it to:

sent = re.sub(r'FC{2}', '', sent)

Nothing happened, the string remained having the 'FR' occurence repeated.

Can somebody help me with or give me a hint ?

Upvotes: 2

Views: 802

Answers (1)

Vishal Singh
Vishal Singh

Reputation: 6234

import re

sent = "The type of vehicle FRFR7800 is the fastest"
regex = r"(\w{2})\1"

print(re.sub(regex, r"\g<1>", sent))

Upvotes: 2

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