Python Set

Set is a mutable and unique collection in Python. It can contain only immutable objects like numbers, strings, and tuples.

Example:

    >>> s = {1, 2.3, "apple", 3, 4}
    >>> type(s)
    set

Python Set Properties

Set is a unique collection like dictionary keys.
Set does not has sequential indexes.
Set is mutable like list and dictionary.
Set can consist of only immutable objects like dictionary keys.

Single Value Tuple Representation

    >>> s = {}
    >>> type(s)
    dict
    >>> s = set()   # empty set
    >>> type(s)
    set

Python Set Attributes

Set has many built-in functions, as listed below:

    add
    clear
    copy
    difference
    difference_update
    discard
    intersection
    intersection_update
    isdisjoint
    issubset
    issuperset
    pop
    remove
    symmetric_difference
    symmetric_difference_update
    union
    update