Python String isupper() Method

Python isupper() method returns True if all characters in the string are in uppercase. It returns False if characters are not in uppercase.

Signature

Parameters

No parameter is required.

Return

It returns either True or False.

Let's see some examples of isupper() method to understand it's functionalities.

Python String isupper() Method Example 1

# Python isupper() method example
# Variable declaration
str = "WELCOME TO JAVATPOINT"
# Calling function
str2 = str.isupper()
# Displaying result
print(str2)

Output:

True

Python String isupper() Method Example 2

# Python isupper() method example
str = "WELCOME TO JAVATPOINT"
str2 = str.isupper()
print(str2)
str3 = "Learn Java Here."
str4 = str3.isupper()
print(str4)

Output:

True
False

Python String isupper() Method Example 3

# Python isupper() method example
str = "WELCOME TO JAVATPOINT"
str2 = str.isupper()
print(str2)
str3 = "WELCOME To JAVATPOINT."
str4 = str3.isupper()
print(str4)
str5 = "123 @#$ -JAVA."
str6 = str5.isupper()
print(str6)

Output:

True
False
True

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