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Python string | hexdigits

Last Updated : 16 Oct, 2018
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In Python3, string.hexdigits is a pre-initialized string used as string constant. In Python, string.hexdigits will give the hexadecimal letters ‘0123456789abcdefABCDEF’.

Syntax : string.hexdigits

Parameters : Doesn’t take any parameter, since it’s not a function.

Returns : Return all hexadecimal digit letters.

Note : Make sure to import string library function inorder to use string.hexdigits

Code #1 :




# import string library function 
import string 
    
# Storing the value in variable result 
result = string.hexdigits 
    
# Printing the value 
print(result)  






                        








Output :


0123456789abcdefABCDEF


 


Code #2 : Given code checks if the string input has only hexadecimal digit letters











                                    




                                    

                                    




                                    




                                    

                                    

                                    
                                




















# importing string library function  


import string  


     


# Function checks if input string  


# has only hexdigits or not  


def check(value):  


    for letter in value:  


             


        # If anything other than hexdigit  


        # letter is present, then return  


        # False, else return True  


        if letter not in string.hexdigits:  


            return False


    return True


     


# Driver Code  


input1 = "0123456789abcdef"


print(input1, "--> ",  check(input1))  


     


input2 = "abcdefABCDEF"


print(input2, "--> ", check(input2))  


     


input3 = "abcdefghGEEK"


print(input3, "--> ", check(input3))  



















                        







                        








Output:


0123456789abcdef -->  True
abcdefABCDEF -->  True
abcdefghGEEK -->  False


Applications :

The string constant hexdigits can be used in many practical applications. Let’s see a code explaining how to use digits to generate strong random passwords of given size.











                                    




                                    

                                    




                                    




                                    

                                    

                                    
                                




















# Importing random to generate  


# random string sequence  


import random  


    


# Importing string library function  


import string  


    


def rand_pass(size):  


        


    # Takes random choices from  


    # string.hexdigits  


    generate_pass = ''.join([random.choice(string.hexdigits)  


                        for n in range(size)])  


                            


    return generate_pass  


    


# Driver Code   


password = rand_pass(10)  


print(password)   



















                        







                        








Output:


e497FEe2bC




                                    


                                                                        

                                        

                                            

                                                

                                                    
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                                                    Shivam_k                                                

                                            

                                            

            
                                        

                                        

                                            
    

        
        
    
                                            

                                                
                                                
                                            

                                            

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