readysetr.blogg.se

So we simply check if the position is not -1, and be on our merry way.

The find method returns the position of the string within the string or -1 if it's not found. The find method returns the index of the beginning of the substring if found, otherwise -1 is returned. The in operator returns True if the substring exists in the string. Like I said above, this way is a little less clear, but it still gets the job done. You can use the in operator or the string’s find method to check if a string contains another string. Here's our example, using the string defined above: This way requires us to call the find method on our string and check its return code. It's longer and a little more confusing, but it still gets the job done. This way is the less Pythonic way, but it's still accepted. The keyword in does all that magical work in the background for you, so there's no worrying about for loops or anything of that nature. in takes two "arguments", one on the left and one on the right, and returns True if the left argument is contained within the right argument. Python String class has contains() function that we can use to check if it contains another string or not. The first way to check if a string contains another string is to use the in syntax. There are two ways of doing it, and some will like one way better than the other, so I'll leave it up to you to decide which one you like better. Python implements this feature in a very easy to read and easy to implement fashion. Last Updated: Wednesday 29 th December 2021Įver wanted to see if a string contains a string in Python? Thought it was going to be complicated like C? Think again!