A variable in Python is a symbolic name that is a reference or pointer to an object. Once an object is assigned to a variable, you can refer to the object by that name.

x = 10 y = "Hello, World!"

In the example above, x is a variable that holds an integer value 10, and y is a variable that holds a string value "Hello, World!".

Python Data Types

Python supports various data types. Some of the most commonly used data types include:

1. Integers (int): Whole numbers without a fractional part.
2. Floating-point numbers (float): Numbers with a fractional part.
3. Strings (str): A sequence of characters.
4. Booleans (bool): Represents True or False.
5. Lists (list): An ordered collection of values.
6. Tuples (tuple): An ordered, immutable collection of values.
7. Dictionaries (dict): A collection of key-value pairs.

#integers (int)
age = 25

#floating point (float)
temperature = 98.6

#String (str)
name = "Alice"

#booleans (bool)
is_active = True

#Lists (list)
fruits = ["apple", "banana", "cherry"]

#Tuples (tuple)
coordinates = (10.0, 20.0)

#Dictionaries (dict)
person = {"name": "John", "age": 30}