Variables and Data types

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Variables and Data types

Variables are containers used to store data. They can be compared to containers in the kitchen that hold sugar, salt, and other ingredients.

Here are some examples of variables:

a = 1
b = True
c = "Name"
d = None

Data Types:

Data type is the kind of value that a variable holds. In Python, we can check the type of any variable using the type() function.

a = 1 # int
b = "1" # str

Here are some examples of different data types:

Numeric data:

  • int: 3, -8, 0

  • float: 7.349, -9.0, 0.0000001

  • complex: 6 + 2j

Text data:

  • str: "Hello World!!!", "Python Programming"

Boolean data:

  • Boolean data consists of values True or False.

Sequenced data:

  • list: A list is an ordered collection of data with elements separated by a comma and enclosed within square brackets. Lists are mutable and can be modified after creation.
list1 = [8, 2.3, [-4, 5], ["apple", "banana"]]
  • tuple: A tuple is an ordered collection of data with elements separated by a comma and enclosed within parentheses. Tuples are immutable and cannot be modified after creation.
tuple1 = (("parrot", "sparrow"), ("Lion", "Tiger"))

Mapped data:

  • dict: A dictionary is an unordered collection of data containing key-value pairs enclosed within curly brackets.
dict1 = {"name": "Sakshi", "age":20, "canVote": True}