A PY file is a program file or script written in Python, an interpreted object-oriented programming language. It can be created and edited with a text editor, but requires a Python interpreter to run. PY files are often used for programming web servers and other administrative computer systems.

PY file open in Sublime Text 3 Python is designed to be easy to read and simple to implement. It is open source and used for developing a wide variety of free and commercial applications, such as Bazaar, Blender, Pylons, and Panda3D. NOTE: The programming language was originally created in the late 1980s by Guido van Rossum with subsequent versions released in 2000 (Python 2.0) and 2008 (Python 3.0).