• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

The Programming Expert

Solving All of Your Programming Headaches

  • HTML
  • JavaScript
  • jQuery
  • PHP
  • Python
  • SAS
  • Ruby
  • About
You are here: Home / Python / What is the Correct File Extension for Python Files?

What is the Correct File Extension for Python Files?

September 10, 2022 Leave a Comment

When creating programs and code in Python, the correct file extension for your code is .py.

There are a few other file extensions associated with Python files. In this article, we will discuss the four different Python file types and the file extensions for each of these file types.

File Extension for Python Source Code

As mentioned above, the file extension for your source code in Python is .py.

After writing your program, script, module, etc., saving your code with .py will allow the operating system to recognize this is a Python file.

File Extension for Compiled Python Bytecode

The second type of file associated with Python is compiled bytecode and the extension for compiled bytecode is .pyc.

Let’s say you create a module with Python source code. If you want to import that module, Python will build a .pyc file which contains the bytecode to make importing this module easier.

File Extension for Compiled Python Bytecode While Optimization is On

If you have optimizations turned on, i.e. with a command like “python -O test.py”, you will get a .pyo file when you run the code.

File Extension for Windows DLL file of Python Code

The final file extension which you should know about is the .pyd file extension. .pyd files are Windows DLL files.

DLL stands for Dynamic Link Library. These library files contain code to carry out a specific function for an application in the Windows operating systems.

.pyd files are DLL files.

Hopefully you’ve learned about the correct file extension for Python files and the difference between different file types in Python.

Other Articles You'll Also Like:

  • 1.  How to Multiply Two Numbers in Python
  • 2.  Return Multiple Values from Function in Python
  • 3.  Get Public IP Address Using Python
  • 4.  pandas T Function – Transposing DataFrames with pandas
  • 5.  pandas mode – Find Mode of Series or Columns in DataFrame
  • 6.  Convert String to Datetime in pandas with pd.to_datetime()
  • 7.  Get pandas Column Names as List in Python
  • 8.  Count Spaces in String in Python
  • 9.  pandas nlargest – Find Largest Values in Series or Dataframe
  • 10.  PROC MIXED Equivalent in Python for Least Squared Means ANOVA

About The Programming Expert

The Programming Expert is a compilation of a programmer’s findings in the world of software development, website creation, and automation of processes.

Programming allows us to create amazing applications which make our work more efficient, repeatable and accurate.

At the end of the day, we want to be able to just push a button and let the code do it’s magic.

You can read more about us on our about page.

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

About The Programming Expert

the programming expert main image

Welcome to The Programming Expert. We are a group of US-based programming professionals who have helped companies build, maintain, and improve everything from simple websites to large-scale projects.

We built The Programming Expert to help you solve your programming problems with useful coding methods and functions in various programming languages.

Search

Learn Coding from Experts on Udemy

Looking to boost your skills and learn how to become a programming expert?

Check out the links below to view Udemy courses for learning to program in the following languages:

Copyright © 2023 · The Programming Expert · About · Privacy Policy