In this tutorial, we will explain how to use Python string isupper() method with basic syntax by example for better understanding.

The String isupper() method returns True if all the string characters are in uppercase; otherwise, it returns False.

Syntax:

<string_value/string_variable>.isupper()

Input Parameters:

• string_value / String variable : The string that we want to check whether in uppercase or not.

Python Check String is uppercase

We can check the string value it’s in uppercase or not by simply using the isupper() method. It means the string value contains only uppercase characters. one example of uppercase string value is “PYTHON”.

Example (1)

#Print the result of isupper() method
msg='WELCOME TO ORAASK'
print ('String variable is a uppercase string:', msg.isupper())

Output of example (1)

String variable is a uppercase string: True

In the above example, the string variable ‘msg’ includes all the characters in the uppercase. When we checked the uppercase characters of it by msg.isupper() in the print statement, it shows True.

Example (2)

#Print the result of isupper() method
msg='WELCOME TO oraask'
print ('String variable is a uppercase string:',msg.isupper())

Output of example (2)

String variable is a uppercase string: False

In the above example, the string variable ‘msg’ includes some characters in the uppercase. When we checked the uppercase characters of it by msg.isupper() in the print statement, it shows False.

In this tutorial, you have learned the string isupper() method in Python. What is it? And how to check whether the string value is in uppercase or not.
If you have an inquiry or doubt, don’t hesitate to leave them in a comment. We are waiting for your valuable feedback.

Hopefully, it was clear and concise.

Similar Python String Checking Methods:

• isalnum() : It returns True if all the characters of the string are alphanumeric; otherwise, it returns False.
• isdigit() : It returns True if all the characters of the string are digit; otherwise, it returns False.
• isdecimal() : It returns True if all the characters of the string are decimal; otherwise, it returns False.
• isnumeric() : It returns True if all the characters of the string are numeric; otherwise, it returns False.
• isalpha() : It returns True if all the string characters are in lowercase; otherwise, it returns False.
• islower() : It returns False if all the string characters are in an lowercase; otherwise, it returns False.
• isspace() : It returns True if all the characters of a string are whitespace; otherwise, it returns False.
• istitle() : It returns True if all the string words are properly “title cased”; otherwise, it returns False.
• startswith() : It returns True if the string starts with a given substring between the given start and end index; otherwise, it returns False.
• endswith() : It returns True if the string ends with a given substring between start and end index; otherwise, it returns False.

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