 Hi everyone, in this tutorial we're going to talk about Dell operator and garbage collection in Python language. Suppose that we have a list, let's call it list one with few elements and then let's say that we have list two with exact same elements and this list two refers to this data also. So list one refers to this data and list two refers to this data to what's going to happen if we want to change for example list one to be just number one and list two to be just number two. So list one is now just this number one and list two is just this number two. Now we have in memory this list, but we can't use this memory anymore. We do not have a variable to refers to this part of memory. So the Python interpreter is going to delete this data at some point of time and this is called garbage collection, but you don't need to wait for the garbage collection. You can also use delete statement to do the same thing. For example, if we have a list one with this data, we can use operator Dell and we can delete list one. We do not need to wait for the garbage collector to delete this data. And now if we try to call list one variable, we're going to get an error because list one is not defined anymore. That's all in this tutorial. Don't forget to subscribe to my channel. See you in the next tutorial. Happy coding.