Python Data Types with Examples and Output

In Python, data types define the kind of value a variable can hold. Understanding data types is crucial for writing efficient and error-free code. Python is dynamically typed, meaning you don’t need to declare the data type of a variable—Python does it automatically.

Types of Data in Python

Python provides several built-in data types. Here are the most commonly used ones:

1. Numeric Types: int, float, complex
2. Sequence Types: str, list, tuple
3. Mapping Type: dict
4. Set Types: set, frozenset
5. Boolean Type: bool
6. None Type: NoneType

1. Numeric Data Types

Integer (int)

Holds whole numbers.

age = 25  # Integer
print("Age:", age)

Float (float)

Holds decimal numbers.

height = 5.9  # Float
print("Height:", height)

Complex (complex)

Holds complex numbers in the form a + bj.

complex_num = 3 + 4j
print("Complex Number:", complex_num)

Output:

Age: 25  
Height: 5.9  
Complex Number: (3+4j)  

2. String Data Type (str)

Strings are sequences of characters enclosed in single or double quotes.

message = "Hello, Python!"
print("Message:", message)

Output:

Message: Hello, Python!  

3. List Data Type (list)

Lists are ordered, mutable (changeable) collections of items.

fruits = ["apple", "banana", "cherry"]
print("Fruits List:", fruits)

Output:

Fruits List: ['apple', 'banana', 'cherry']  

4. Tuple Data Type (tuple)

Tuples are ordered but immutable (unchangeable) collections.

coordinates = (10, 20, 30)
print("Coordinates:", coordinates)

Output:

Coordinates: (10, 20, 30)  

5. Dictionary Data Type (dict)

Dictionaries store data as key-value pairs.

person = {"name": "Dharmender", "age": 30}
print("Person Dictionary:", person)

Output:

Person Dictionary: {'name': 'Dharmender', 'age': 30}  

6. Set Data Type (set)

Sets are unordered collections of unique items.

unique_numbers = {1, 2, 3, 3, 4}
print("Unique Numbers Set:", unique_numbers)

Output:

Unique Numbers Set: {1, 2, 3, 4}  

7. Boolean Data Type (bool)

Booleans represent True or False.

is_active = True
print("Is Active:", is_active)

Output:

Is Active: True  

8. None Type (NoneType)

Represents the absence of a value.

result = None
print("Result:", result)

Output:

Result: None  

Keep Learning 🙂