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Python String | isupper method
schedule Aug 12, 2023
Last updated local_offer
Tags Python
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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.
Published by Isshin Inada
Edited by 0 others
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Official Python Documentation
https://docs.python.org/3/library/stdtypes.html#str.isupper
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