change all characters to uppercase python code example

Example 1: how to check case of string in python

string = 'iAmABoy'

for letter in string:
    print(letter)
    if letter.isupper():
        print('yes')
        break
        
o/p:-
  i
  A
  yes
  
happy coding ^^

Example 2: how to check case of string in python

Call str. islower() with str as a string to determine if str is all lowercase. Call str. isupper() to determine if str is all uppercase.