python-regexHow to remove numbers from a string using Python regex?

Using Python regex, numbers can be removed from a string by using the re.sub() function. This function takes two arguments, the pattern to be matched and the replacement string. The pattern can be specified using the \d character class, which matches any digit.

import re

string = "This is a string with 123 numbers"

result = re.sub(r'\d+', '', string)

print(result)

Output example

This is a string with  numbers

The code above consists of the following parts:

1. import re: This imports the re module, which provides functions for working with regular expressions.
2. string = "This is a string with 123 numbers": This creates a string variable containing the string to be processed.
3. result = re.sub(r'\d+', '', string): This uses the re.sub() function to replace any digits in the string with an empty string.
4. print(result): This prints the result of the substitution.

Helpful links

• Python Regular Expressions
• Regular Expression HOWTO

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