Quiz: Why are Python tuples hashable while lists are not?
Because tuples are immutable (their contents cannot change), they produce a fixed hash value and can be used as dictionary keys.
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Because tuples are immutable (their contents cannot change), they produce a fixed hash value and can be used as dictionary keys.
Variable assignment binds a new symbol to the exact same object identity, whereas a shallow copy constructs a new outer container.
yield turns a regular function into a generator. Each call to next() resumes execution until the next yield .
*args collects any extra positional arguments passed to a function into a tuple.
A decorator is a callable that receives a function, wraps it with additional behaviour, and returns a new callable.
== tests if two objects have equal values , whereas is tests whether both variables reference the exact same memory object .
__new__ is the static constructor that creates and returns a new object instance; __init__ then receives that instance to initialize its attributes.
copy.deepcopy() constructs a new compound object and then, recursively, inserts copies into it of the objects found in the original.