Understanding Python Virtual Machine: A Beginner’s Guide

In simple terms, the Python Virtual Machine (PVM) is just a software program that acts as the brain behind Python code execution. Think of it as a system where a continuous loop runs, and every Python file you embed into it gets executed from the first line to the last.

How It Works:

  • Writing the Code:

    You write Python code, such as: print("Hello, World!")

  • Compilation to Bytecode:

    Python doesn’t execute your code directly. Instead, it first converts your code into bytecode (a simpler version of the code).

  • Execution by PVM:

    The PVM picks up this bytecode and runs it line by line in a loop until the entire program is executed. That’s why Python is called an interpreted language — it reads and executes code step by step rather than compiling it all at once.

Final Thoughts:

The PVM is essentially a software loop that takes your bytecode and executes it sequentially. This simplicity is what makes Python beginner-friendly and powerful for various applications.

Thanks to Hitesh Choudhary Sir for making this concept easier to understand.