.PYX File Extension

Pyrex Source Code File

Developer Greg Ewing
3.3  |  7 Votes

What is a PYX file?

A PYX file is a source code file written in Pyrex, a Python-like language used for writing Python extension modules with C-like syntax. It may contain references to existing C modules. PYX files are used to speed up the execution of Python programs.

More Information

Screenshot of a .pyx file in Microsoft Visual Studio Code
PYX file open in Microsoft Visual Studio Code

Since Pyrex is used for writing modules for Python software, PYX files may sometimes be found with Python applications.

NOTE: Cython is an extension of Pyrex that contains several enhancements. Developers often prefer Cython to Pyrex.

How to open a PYX file

You can open a PYX file and edit the source code it contains with Microsoft Visual Studio Code (multiplatform) or any other source code editor.

To use a PYX file with Pyrex (multiplatform) or Cython (multiplatform), refer to those programs' documentation.

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Programs that open or reference PYX files

Verified by FileInfo.com

The FileInfo.com team has independently researched the Pyrex Source Code file format and Mac, Windows, and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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