Python 3 Script to Remove Special Characters From Text File Using Regular Expression Full Project

Welcome folks today in this blog post we will be removing special characters from the text file using regular expression in python. All the full source code of the application is shown below.

Get Started

In order to get started you need to make an app.py file and copy paste the following code

app.py

import re
string = open('input.txt').read()
new_str = re.sub('[^a-zA-Z0-9\n\.]','', string)
open('b.txt', 'w').write(new_str)

import re

string = open('input.txt').read()

new_str = re.sub('[^a-zA-Z0-9\n\.]','', string)

open('b.txt', 'w').write(new_str)

And now we need to create the input.txt file before you execute the python script and copy paste the below text which contains the special characters as shown below

input.txt

@###@@@dfsdfsd
sdfsdf
@##fdsfsdfsdf
sdfsdf$$sfsd

@###@@@dfsdfsd

sdfsdf

@##fdsfsdfsdf

sdfsdf$$sfsd

And after that you need to execute the above python script using the below command as shown below

python app.py