Find Special Characters in Python with re

In this Python article we are going to learn about Find Special Characters in Python with re (Regular

Expression ). for this we are using Python re, so regular expression (or RE) specifies a set of strings

that matches it, the functions in this module let you check if a particular string matches a given

regular expression (or if a given regular expression matches a particular string, which comes down

to the same thing). for more information you can check Regular Expression documentation. also

a special character is a character that is not an alphabetic or numeric character. Punctuation

marks and other symbols are examples of special characters like @, #, $, %, &.

Also you can read more Python GUI articles in the below links.

1: Kivy GUI Development Tutorials

2: Python TKinter GUI Development

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5: PyQt5 GUI Development Course

So now this is the code for Find Special Characters in Python with re.

import re 



#our function
def find_charecter(text):


    #regular expression with compiled method
    regex = re.compile('[@_!#$%^&*()<>?/\|}{~:]') 


    #check for the charecter
    if(regex.search(text) == None):
        print("There is no special charecter in : ", text)

    else: 
        print("There is special charecter in : ", text)



text = "#codeloop@@@"
find_charecter(text)

import re

#our function

def find_charecter(text):

#regular expression with compiled method

regex = re.compile('[@_!#$%^&*()<>?/\|}{~:]')

#check for the charecter

if(regex.search(text) == None):

print("There is no special charecter in : ", text)

else:

print("There is special charecter in : ", text)

text = "#codeloop@@@"

find_charecter(text)

At the top first of all we have imported our re class from python, and after that we have

created a method that takes a parameter.

After that we have used re.compile(), it is a regular expression pattern into a regular expression object, which can be used for matching using its match(), search() and other methods.

 regex = re.compile('[@_!#$%^&*()<>?/\|}{~:]')

1	regex = re.compile('[@_!#$%^&*()<>?/\\|}{~:]')

This is used for checking the characters.

 if(regex.search(text) == None):
        print("There is no special charecter in : ", text)

    else: 
        print("There is special charecter in : ", text)

if(regex.search(text) == None):

print("There is no special charecter in : ", text)

else:

print("There is special charecter in : ", text)

So now if you run the code this will be the result.

There is special charecter in :  #codeloop@@@

Process finished with exit code 0

There is special charecter in : #codeloop@@@

Process finished with exit code 0

And If you remove the characters, this will be the result.

There is no special charecter in :  codeloop

Process finished with exit code 0

There is no special charecter in : codeloop

Process finished with exit code 0

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