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Python String | isupper method

Programming
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Python
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Operations
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String Operations
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Documentation
schedule Mar 10, 2022
Last updated
local_offer Python
Tags

Python's str.isupper(~) method returns a boolean indicating whether all cased characters in a string are uppercase. Note that when the string contains only special characters False is returned.

Parameters

No parameters.

Return value

A boolean indicating whether all the cased characters in a string are uppercase.

Examples

Basic Usage

When all the cased characters are not uppercase:

x = 'SkyTowner'
x.isupper()
False

When all the cased characters are uppercase:

y = 'SKYTOWNER'
y.isupper()
True

Non-cased characters

When all the characters are special characters or numbers:

z = '123'
z.isupper()
False

When the string is a mix of special characters and uppercase characters:

a = '123A'
a.isupper()
True

Note that the isupper() method only checks whether all cased characters are uppercase and disregards non-cased characters such as numbers.

robocat
Published by Isshin Inada
Edited by 0 others
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