Prerequisite: Regular Expression in Python
In this article, we will see how to remove continuously repeating characters from the words of the given column of the given Pandas Dataframe using Regex.
Here, we are actually looking for continuously occurring repetitively coming characters for that we have created a pattern that contains this regular expression (\w)\1+ here \w is for character, 1+ is for the characters that come more than once.
We are passing our pattern in the re.sub() function of re library.
Syntax: re.sub(pattern, repl, string, count=0, flags=0)
The ‘sub’ in the function stands for SubString, a certain regular expression pattern is searched in the given string(3rd parameter), and upon finding the substring pattern is replaced by repl(2nd parameter), count checks and maintains the number of times this occurs.
Now, Let’s create a Dataframe:
Now, Remove continuously repetitive characters from words of the Dataframe common_comments column.
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