Replacing a String in Python

If you’re looking for ways to remove or replace all or part of a string in Python, then this course is for you. You’ll be taking a fictional chat room transcript and sanitizing it using both the .replace() method and the re.sub() function.

In Python, the .replace() method and the re.sub() function are often used to clean up text by removing strings or substrings or replacing them. In this tutorial, you’ll be playing the role of a developer for a company that provides technical support through a one-to-one text chat. You’re tasked with creating a script that’ll sanitize the chat, removing any personal data and replacing any swear words with emoji.

You’re only given one very short chat transcript:

[support_tom] 2022-08-24T10:02:23+00:00 : What can I help you with?
[johndoe] 2022-08-24T10:03:15+00:00 : I CAN'T CONNECT TO MY BLASTED ACCOUNT
[support_tom] 2022-08-24T10:03:30+00:00 : Are you sure it's not your caps lock?
[johndoe] 2022-08-24T10:04:03+00:00 : Blast! You're right!

Even though this transcript is short, it’s typical of the type of chats that agents have all the time. It has user identifiers, ISO time stamps, and messages.

In this case, the client johndoe filed a complaint, and company policy is to sanitize and simplify the transcript, then pass it on for independent evaluation. Sanitizing the message is your job, and that’s what you’ll tackle in this video course.

What’s Included:

Downloadable Resources:

Working With Regular Expressions

3 Lessons 8m

About Philipp Acsany

Philipp is a Berlin-based software engineer with a graphic design background and a passion for full-stack web development.

» More about Philipp

Each tutorial at Real Python is created by a team of developers so that it meets our high quality standards. The team members who worked on this tutorial are:

« Browse All Courses