Python String isupper() method

Python String isupper() method

The String.isupper() method in Python returns a boolean value ‘true’ if all cased characters in the string are uppercase else for any other value is returns false.

Syntax

String.isupper()

Parameter

NA

Return

This method returns a Boolean value true if all the characters in the specified string are uppercased else it returns false.

Example 1

 # Python program explaining
 # the string.isupper() method
 # initializing the string value
 string = 'TUTORIALSANDEXAMPLES'
 print("String 1:",string)
 print("The above string is upper cased:",string.isupper()) 
  #initializing second string value
 string = 'TutorialsAndEXAMPLES'
 print("String 2:",string)
 print("The above string is upper cased:",string.isupper()) 

Output

 String 1: TUTORIALSANDEXAMPLES
 The above string is upper cased: True
 String 2: TutorialsAndEXAMPLES
 The above string is upper cased: False 

Example 2

 # Python program explaining
 # the string.isupper() method
 # initializing the string value
 string = "PYTHON IS AN EASY PROGRAMMING LANGUAGE"
 print("String 1:",string)
 if string.isupper() == True:
   print('The above string does not contain a lowercase letter.\n')
 else:
   print('The above string contains a uppercase letter.\n')
 string = "It IS VERY SIMPLE TO EXCEcute"
 print("String 2:",string)
 if string.isupper() == True:
   print('The above string does not contain a lowercase letter.')
 else:
   print('The above string contains a lowercase letter.') 

Output

 String 1: PYTHON IS AN EASY PROGRAMMING LANGUAGE
 The above string does not contain a lowercase letter.
 String 2: It IS VERY SIMPLE TO EXCEcute
 The above string contains lowercase letter. 

Example 3

 # Python program explaining
 # the string.isupper() method
 # initializing the string value
 string = "PYTHON IS AN EASY PROGRAMMING LANGUAGE"
 print(string.isupper())
 # passing special characters
 string = "!@#HELLOWORLD"
 #return true the letters in the string are in uppercase
 print(string.isupper())
 # passing whitespace
 string = "HELLO WORLD"
 #return true the letters in the string are in uppercase
 print(string.isupper())
 # passing integer values in the string
 string = "HELLO123 WORLD123"
 #return true the letters in the string are in uppercase
 print(string.isupper())
 string = "HellO123 WORLD123"
 #return false the some letters in the string are in lowercase
 print(string.isupper()) 

Output

 True
 True
 True
 True
 False