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Hey everyone, welcome back to this
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channel. Well, this I Raja Lakmi Singum.
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If you're just starting out with Python,
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today's topic is going to be super
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helpful for you. We are going to talk
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about membership operators. The little
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keywords that help you check whether
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something exist inside a list, string,
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or any collection in Python. Don't
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worry, we'll go step by step and use
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examples that are really easy to
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So, Python gives us two membership
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operators which are in and not in. Let's
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Imagine you have a basket of fruits and
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you want to check if an apple is inside.
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So, that's exactly what the in operator
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does in Python. It checks whether
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something is present inside a list or
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string or any collection. Like for
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example, if we create a list
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Now we'll give a condition if three in
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number three is not present
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Okay. So here Python if you give if
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three in my list. So, Python looks
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inside this my list and it will check
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whether the list have three or not. If
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the number three is present then that
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means this condition is true because you
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see three is present in the list. So, it
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will just print this number three is
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See this is what for example if you give
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number 10 is not present in the list
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because we don't have number 10 in the
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list. So it will check it will jump to
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my list. It will check whether the
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element is there or not using this in
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operator and then it will give us the
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And second operator we have is not in.
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Now let's uh flip this situation like
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what if you want to check that something
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is not in the list or any string.
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So that's where Nin comes in. Like for
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just create a variable called phrase and
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now we will check whether the if
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is not in the sequence or sentence.
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it'll be opposite right so the letter x
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that's it so what's happening here here
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Python checks if the letter X inside the
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phrase or not. So inside this hello, how
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are you? So since you see X doesn't
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appear anywhere, so the condition is
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true and it prints the letter X is not
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So basically not in is the opposite of
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See the letter X not in the list.
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see the letter H in the sentence. Not in
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is opposite of in. So I already told
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you. So use in when you want to check if
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something exists in a list or string or
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collection and use not in when you want
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to confirm that something does not exist
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there. It's like asking is this
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ingredient in my recipe or no it's not
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So this is what about in and not in. All
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right friends that's it for today's
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lesson on membership operators.
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Remember, these tiny operators can save
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you from writing long loops and make
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your code so much cleaner and smarter.
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Now, before you go, if this video helped
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you understand things a little better,
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do me a small favor. Hit the subscribe
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button, tap the bell icon so you'll
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never miss out on future videos where we
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make coding feel easy and fun together.
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And hey, drop a comment telling me what
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you'd like me to cover next. I'd love to
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hear your ideas. Until then, keep
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practicing, keep smiling, and happy
