.py — Python Script File
Guido van Rossum / PSF · 1991
PY files contain source code written in Python, one of the world's most popular programming languages.
Key Features
- Plain text storage behavior for typical code workflows
- Common MIME type: text/x-python
- Recognizable file signature: Plain text (no signature)
- Associated with Guido van Rossum / PSF
Best For
- Developer workflows
- Version-controlled projects
- Readable plain-text editing
Less Ideal For
- Rich visual layouts
- Binary asset storage
- Non-technical end-user exchange
Common Use Cases
- Writing source code
- Configuring apps and tools
- Automating workflows or scripting
How to Open It
- On Windows, open the file with Python Interpreter or VS Code.
- On macOS, open the file with Python Interpreter or VS Code.
- If the file does not open, confirm that the extension really matches .py and that the download or transfer completed without corruption.
What is a .py file?
PY files contain source code written in Python, one of the world's most popular programming languages. Python is known for its clean, readable syntax and vast ecosystem of libraries. PY files are used for web development (Django, Flask), data science (pandas, NumPy), machine learning (TensorFlow, PyTorch), automation, scripting, and scientific computing. Python's versatility and beginner-friendliness have made it the most-taught language in universities worldwide.
Programs That Open .py Files
| Platform | Program | ||
|---|---|---|---|
| Windows | Python Interpreter | Free | Official |
| VS Code | Free | ||
| PyCharm | Free | ||
| macOS | Python Interpreter | Free | Official |
| VS Code | Free |
Common Problems with .py Files
Frequently Asked Questions
.py files can be opened with several programs. Python Interpreter is one of the most popular choices.
Generally yes, .py files are safe to open with appropriate software.
Yes, there are many online and offline tools available to convert .py files. Check the conversion section above for specific methods.
Technical Details
Python Script File files use the text/x-python MIME type and were first introduced in 1991 by Guido van Rossum / PSF. The file can be identified by its signature: Plain text (no signature).