Python string | ascii_uppercase
In Python3, ascii_uppercase
is a pre-initialized string used as a string constant. In Python, the string ascii_uppercase
will give the uppercase letters ‘ABCDEFGHIJKLMNOPQRSTUVWXYZ’.
Syntax : string.ascii_uppercase Parameters: Doesn’t take any parameter, since it’s not a function. Returns: Return all uppercase letters.
Note: Make sure to import the string library function to use ascii_lowercase.
Code #1 :
Python3
# import string library function import string # Storing the value in variable result result = string.ascii_uppercase # Printing the value print (result) |
Output :
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Code #2 :
Given code checks if the string input has only upper ASCII characters.
Python3
# importing string library function import string # Function checks if input string # has upper ascii letters or not def check(value): for letter in value: # If anything other than upper ascii # letter is present, then return # False, else return True if letter not in string.ascii_uppercase: return False return True # Driver Code input1 = "w3wiki" print (input1, " - - > ", check(input1)) input2 = "Beginner FOR Beginner" print (input2, " - - > ", check(input2)) input3 = "w3wiki" print (input3, " - - > ", check(input3)) |
Output:
w3wiki --> False
Beginner FOR Beginner --> False
w3wiki --> True
Applications : The string constant ascii_uppercase can be used in many practical applications. Let’s see a code explaining how to use ascii_uppercase to generate strong random passwords of given size.
Python3
# Importing random to generate # random string sequence import random # Importing string library function import string def rand_pass(size): # Takes random choices from # ascii_letters and digits generate_pass = ''.join([random.choice( string.ascii_uppercase + string.digits) for n in range (size)]) return generate_pass # Driver Code password = rand_pass( 10 ) print (password) |
Output:
TR2ESZAJOT