Introduction to Python

Python is an interpreted, high-level language. Unlike C++ which compiles directly to machine code, Python uses a 2-step process: 1. **Compilation**: Your code is compiled into 'Bytecode' (a low-level, platform-independent format). 2. **Interpretation**: The Python Virtual Machine (PVM) reads this bytecode and executes it line-by-line on your computer's processor.

Think of Python like a language. It has a vocabulary and grammar: - **Variables**: Containers for storing data (e.g., `x = 5`). - **Data Types**: The kind of data (Numbers, Text/Strings, True/False). - **Conditionals**: Making decisions (`if`, `else`). - **Loops**: Repeating actions (`for`, `while`). - **Functions**: Reusable blocks of code.

Python
# A simple Python program
name = "Alex"
age = 25
if age >= 18:
    print(name + " is an adult.")
else:
    print(name + " is a minor.")

Python is famous for its simplicity and versatility. It's used in: - **Web Development**: Building websites (like this one!). - **Data Science & AI**: Analyzing data and training machine learning models. - **Automation**: Writing scripts to do boring tasks for you. - **Game Dev**: Creating simple games.