MediumWorking of Python Engine. What is Python Engine | by Akshayachitti | Nov, 2026 | Medium
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Working of Python Engine

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Working of Python Engine

What is Python Engine

Python engine is the system that processes and executes python code to produce the output.

How does python engine works

  1. PROGRAMMER

As a programmer, we write set of instructions using python. All these instructions are also called as source code.

Example:

2.RUN BUTTON

When we click on the Run button this entire instruction will be taken by machine and gives to python engine.Python engine only understands python programming language.

Example:

3. Syntax Checker

Inside the python engine, the source code is given to the syntax checker.

The syntax checker checks whether the code follows python syntax rules.

If any syntax errors are found, it’s stops the python engine.

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Example:

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What is Syntax Error

If you don’t follow instructions, it will get an error, that error is called syntax error.

4. Compiler

If there is no syntax errors, the compiler converts the python source code to byte code.

What is byte code

Byte code is a low level code created by the compiler from python source code.

5. Interpreter

The interpreter executes the bytecode using the python virtual machine(PVM).

6. Python virtual machine(PVM)

PVM stands for python virtual machine.

It executes the bytecode instructions.

7. Exception Error

An exception is an error that occurs while a program is running.

8. Output

The python engine execute the instructions and displays the final result on the screen.

Conclusion

Python Engine helps us run python programs and gives us the output.

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