Built-in Functions
id()
Return an object's identity number during this run.
id(object)
id() identifies a particular object while the program is running. It is useful for checking whether two names refer to the same object, not for storing a permanent identifier.
Parameters
| Name | Description |
|---|---|
| object | The object whose identity to inspect. |
Returns
An integer unique for the object during its lifetime in this Python run.
Try it
Run it and change it
item = [] same_item = item print(id(item) == id(same_item))