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