 Hi again, in this lesson we're going to talk about that how to check if all characters in our string are lowercase in Python programming language. For example, let's make a string, let's call it my string and let's put inside our string some text, for example, this is a text with all lowercase characters, okay? Let's try to check does our string has all lowercase characters. We'll use method lower, that method will check does our string contains all lowercase characters and of course it contains so returning value will be true. What will happen if we will have, for example, exact same string but with one uppercase letter? What will happen if we try to see is our string all with lowercases or not? If we try to check this string we'll see that all characters are not lower because this first letter is uppercase, so returning value will be false. So that's it for this lesson, thanks for watching, see you in the next video, bye-bye.