2. Variables and Data Types in Python: A Complete Guide for Beginners

 

1. What are Variables?

• Explain how variables act as containers for storing data values.
• Show how to declare and use variables in Python with examples:

code:

#any name you can proceed

name = "PythonHub"

age = 23

• Mention Python's dynamic typing (no need to declare variable types explicitly).

2. Python Data Types

 ->String: Used for text (e.g., "Hello, World!").

• Example:
• code:
•    greeting = "Hello" print(type(greeting)) # Output: <class 'str'>

  ->Integer: For whole numbers (e.g., 42).

• Example:
• number = 100 print(type(number)) # Output: <class 'int'>

 ->Float: For decimal numbers (e.g., 3.14).

• Example:
• pi = 3.14 print(type(pi)) # Output: <class 'float'>

 ->Boolean: For true/false values (True, False).

• Example:
• is_active = True
• print(type(is_active))  # Output: <class 'bool'>

• 3. Type Casting

  • Show how to convert between different data types.
  • Example:
  • age = "16"
  • age = int(age)
  • print(age)  # Output: 16