ModuleNotFoundError: No module named 'regex'

I’m new to python. I was trying to use regex. But I keep getting the following error:

Traceback (most recent call last):
  File "main.py", line 1, in <module>
    import regex
ModuleNotFoundError: No module named 'regex'

My Code:

import regex

# Define the pattern
pattern = r'Hello, \w+!'

# Create a sample string
string = 'Hello, John!'

match = regex.match(pattern, string)

if match:
    print('Pattern matched!')
else:
    print('Pattern not found.')

I tried running it in some online compilers too. But didn’t work

I don’t know why this is failing. Can someone please assist me on this?

>Solution :

Method 1 (Recommended):

Use the build-in re module. Just replace regex with re and you are good to go.

Or, if you have written quite a bit of code already, import it like: import re as regex

import re as regex

# Define the pattern
pattern = r'Hello, \w+!'

# Create a sample string
string = 'Hello, John!'

match = regex.match(pattern, string)

if match:
    print('Pattern matched!')
else:
    print('Pattern not found.')

Method 2:

You can install the regex module from pip. And your existing code will work fine.

In your terminal, run: python3 -m pip install -U regex

If it doesn’t work for you, try: python -m pip install -U regex

-U stands for --upgrade

I also found a 3 years old question of the problem.