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Python - Remove all characters except letters and numbers
When it is required to remove all characters except for letters and numbers, regular expressions are used. A regular expression is defined, and the string is subjected to follow this expression.
Example
Below is a demonstration of the same
import re
my_string = "python123:, .@! abc"
print ("The string is : ")
print(my_string)
result = re.sub('[\W_]+', '', my_string)
print ("The expected string is :")
print(result)Output
The string is : python123:, .@! abc The expected string is : python123abc
Explanation
The required packages are imported.
A string is defined and is displayed on the console.
A regular expression is defined, and the string is subjected to it.
The result is assigned to a variable.
This is displayed as output on the console.
Updated on: 20-Sep-2021
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