Programming Essentials Python - Overview of Collections - Overview of dict and tuple

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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 pairs 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 an 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
type(d)

d = dict()  # Initializing an empty dict
d

d = {}  # d will be of type dict
type(d)

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

t = ()
t
type(t)

t = tuple()
t

Watch the video tutorial here