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For example, to run a Python program line by line, the interpreter executes each statement in order.
Program.py

File Edit Format Run Options Window Help

print("Hello")
print(10 + 5)
print("Python")

Output

Hello
15
Python

Each line is executed one after another by the interpreter.

Advantages of Interpreter-Based Python are:
• No need to compile the program before running

• Errors are easy to find and fix
• Faster program testing

• Beginner-friendly
Note: All the examples stated above will be explained further.

12.6 PYTHON CODE EXECUTION
Python follows an interpretation model with bytecode compilation, not a purely traditional compiled model. In which
the source code you write is first translated into bytecode. This bytecode is then executed by the Python Virtual
Machine (PVM). In simple terms, Python source code compiles your code into bytecode and then interprets it during
execution.
There are two modes for using the Python interpreter:

• Interactive Mode
• Script Mode

12.6.1 Running Python in interactive mode
Python allows you to run code directly at the interactive prompt without providing a script file to the interpreter. To
open Python IDLE - Click Start -> Then IDLE (Python 3.13 64 Bit).
Once you’re inside the Python interpreter, you can start typing commands.

>>> print("hello world")
hello world
# Relevant output is displayed on subsequent lines without the >>> symbol

>>> x=[0,1,2]

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