The isupper() method checks whether all the case-based characters (letters) of the string are uppercase.
Following is the syntax for isupper() method −
This method returns true if all cased characters in the string are uppercase and there is at least one cased character, false otherwise.
The following example shows the usage of isupper() method.
#!/usr/bin/python3 str = "THIS IS STRING EXAMPLE....WOW!!!" print (str.isupper()) str = "THIS is string example....wow!!!" print (str.isupper())
When we run above program, it produces the following result −