Python | String upper() - GeeksforGeeks

upper() method converts all lowercase characters in a string into uppercase characters and returns it

Syntax :

string.upper()

Parameters :

The upper() method doesn’t take any parameters.

Returns :

returns a uppercased string of the given string

CODE 1: String with only alphabetic characters

# Python3 program to show the 
# working of upper() function 
text = 'geeKs For geEkS'
  
print("Original String:") 
print(text) 
  
# upper() function to convert  
# string to upper_case 
print("\nConverted String:") 
print(text.upper()) 

Output :

Original String:
geeKs For geEkS

Converted String:
GEEKS FOR GEEKS

CODE 2: String with alphanumeric characters

# Python3 program to show the 
# working of upper() function 
text = 'g3Ek5 f0r gE3K5'
  
print("Original String:") 
print(text) 
  
# upper() function to convert  
# string to upper_case 
print("\nConverted String:") 
print(text.upper()) 

Output :

Original String:
g3Ek5 f0r gE3K5

Converted String:
G3EK5 F0R GE3K5

Application: One of the common application of upper() method is to check if the two strings are same or not

# Python3 program to show the 
# working of upper() function 
text1 = 'geeks fOr geeks'
  
text2 = 'gEeKS fOR GeeKs'
  
# Comparison of strings using  
# upper() method 
if(text1.upper() == text2.upper()): 
    print("Strings are same") 
else:  
    print("Strings are not same") 

Output:

Strings are same

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