Data Type

by

Data types are an essential concept in programming that determine the type of data that a variable can hold. In Python, there are several built-in data types that are used to represent different kinds of values. Understanding the different data types and how to use them correctly is crucial for writing efficient and bug-free code. In this article, we will discuss the most commonly used data types in Python.

  1. Numeric Data Types: Numeric data types are used to represent numbers in Python. There are three numeric data types in Python:
  • Integer (int): This data type is used to represent whole numbers, such as 1, 2, 3, and so on.
  • Float (float): This data type is used to represent decimal numbers, such as 3.14, 2.5, and so on.
  • Complex (complex): This data type is used to represent complex numbers, such as 3 + 4j, 5 – 6j, and so on.

Example 1

x = 5 # integer
y = 3.14 # float
z = 2 + 3j # complex
  1. String Data Type: String data type is used to represent text in Python. Strings are immutable, which means they cannot be changed after they are created. String literals can be enclosed in single quotes (‘…’) or double quotes (“…”) or triple quotes (”’…”’) or (“””…”””).

Example 2

x = "Hello, World!" # string
y = 'Python is awesome!' # string
z = '''This is a multi-line string
that spans across multiple lines''' # multi-line string
  1. Boolean Data Type: Boolean data type is used to represent True and False values. Boolean values are used in conditional statements and loops.

Example 3

x = True # boolean
y = False # boolean
  1. List Data Type: List data type is used to represent a collection of values that can be of any data type. Lists are mutable, which means they can be modified after they are created.

Example 4

x = [1, 2, 3] # list of integers
y = ['apple', 'banana', 'cherry'] # list of strings
z = [1, 'apple', True] # list of mixed data types
  1. Tuple Data Type: Tuple data type is used to represent a collection of values that can be of any data type. Tuples are immutable, which means they cannot be changed after they are created.

Example 5

x = (1, 2, 3) # tuple of integers
y = ('apple', 'banana', 'cherry') # tuple of strings
z = (1, 'apple', True) # tuple of mixed data types
  1. Set Data Type: Set data type is used to represent a collection of unique values. Sets are mutable, which means they can be modified after they are created.

Example 6

x = {1, 2, 3} # set of integers
y = {'apple', 'banana', 'cherry'} # set of strings
z = {1, 'apple', True} # set of mixed data types
  1. Dictionary Data Type: Dictionary data type is used to represent a collection of key-value pairs. Each key in a dictionary must be unique.

Example 7

x = {'name': 'John', 'age': 25} # dictionary
y = {'apple': 1, 'banana': 2, 'cherry': 3} # dictionary

Conclusion: Python provides a wide range of built-in data types

Leave a Comment