Welcome folks today in this blog post we will be replacing blank spaces in text file with hypen using regular expression.All the full source code of the application is given below.

Get Started

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

app.py

f = open("test.txt", "r")
text=f.read()
f.close()
f=open("testfile.txt", "w+")
text2=''
if ' ' in text:
    text2 = text.replace(' ' , '-')
    print(text2)
    f.write(text2)
f.close()

Now if you execute the python script by typing the below command as shown below

python app.py

Using Regular Expression

app.py

import re

def urlify(s):

    # Remove all non-word characters (everything except numbers and letters)
    s = re.sub(r"[^\w\s]", '', s)

    # Replace all runs of whitespace with a single dash
    s = re.sub(r"\s+", '-', s)

    return s

# Prints: I-cant-get-no-satisfaction"
print(urlify("I can't get no satisfaction!"))