# Python code for demos
# remove all characters
# except numbers and alphabets

import re

 
# initialization string

ini_string = " 123abcjw :,. @! eiw "

 
# print the original line  

print ( "initial string:" , ini_string)

 
# function for demonstrations of removing characters
# which are not numbers and alphabets using re

result = re.sub ( '[W _] +' , '', ini_string)

  
# print the final line

print ( "final string" , result)

# Python code for demonstration
# remove all characters
# except numbers and alphabets

import re

 
# initializing string

ini_string = "123abcjw :,. @! eiw "

  
# print the original line

print ( " initial string: " , ini_string)

  
# function to demonstrate removal of characters
# which are not numbers and alphabets using re

getVals = list ( [val for val in ini_string

  if val .isalpha () or val.isnumeric ()])

result = " ". join (getVals)

  
# print the final line

print ( "final string" , result)