Seonglae ChoIf the value of an object never changes during its lifetime, and it is comparable to other objects, that object is hashable. (To check if it never changes, you need the
__hash__() method and to check if it's comparable to other objects, you need the __eq__() method.) Two objects considered identical must always have the same hash value.__hash__() make to be- key of Python Dictionary
- member of python Set
Almost python immutable is hashable object
User-defined data types are essentially hashable. Basically, because the hash value of any object is obtained using the
id() function, the hash values of all objects are different from each other.
