Overview of dict and tuple

As we have gone through details related to list and set, now let us get an overview of dict and tuple in Python.

  • dict

    • Group of heterogeneous elements

    • Each element is a key value pair.

    • All the keys are unique in the dict.

    • dict can be created by enclosing elements in {}. Key Value pair in each element are separated by : - example {1: 'a', 2: 'b', 3: 'c', 4: 'd'}

    • Empty dict can be initialized using {} or dict().

  • tuple

    • Group of heterogeneous elements.

    • We can access the elements in tuple only by positional notation (by using index)

    • tuple can be created by enclosing elements in () - example (1, 2, 3, 4).

d = {'id': 1, 'first_name': 'Scott', 'last_name': 'Tiger', 'amount': 1000.0} # dict

d

{'id': 1, 'first_name': 'Scott', 'last_name': 'Tiger', 'amount': 1000.0}

type(d)

dict

d = dict() # Initializing empty dict

d

{}

d = {} # d will be of type dict

type(d)

dict

t = (1, 'Scott', 'Tiger', 1000.0) # tuple

type(t)

tuple

t

(1, 'Scott', 'Tiger', 1000.0)

t = ()

t

()

type(t)

tuple

t = tuple()

t

()
Overview of Collections - dict and tuple Common Operations