What is a variable?

A variable is a named location in memory where data is stored. It serves for temporary storage of values, allowing access to them by name. In Python, a variable does not have a fixed data type; the type is determined by the value assigned to the variable.

Example of assignment and usage:

# Assign an integer value to the variable 'age'
age = 30

# Assign a string value to the variable 'name'
name = "Alice"

# Print the values of the variables
print(f"Name: {name}, Age: {age}")

Key features of variables in Python:

• Dynamic typing: The type of a variable can change depending on the assigned value.
• Implicit declaration: A variable is created automatically upon the first assignment.
• References: In Python, variables are references to objects in memory.

Comparison with statically typed languages (e.g., Java):

Python (Dynamic typing)	Java (Static typing)
Type is determined by the value	Type is explicitly declared
Type can change	Type is fixed after declaration
Less boilerplate	More strict type checking at compile time