fparser 0.2.3

Python implementation of a Fortran parser

News

• 10/06/2026 Version 0.2.3 released (adds support for preprocessor line markers, improved handling of labelled DO loops and support for F2008 extension to Proc_Decl).
• 01/04/2026 Version 0.2.2 released (adds support for more types of directive and support for the Fortran2008 unlimited-repeat format specifier).
• Good to know: fparser with Python 3.14 is approximately a factor of two faster than it is with older Python versions.
• 29/09/2025 Version 0.2.1 released (bug fixes for string handling and loops in array constructors, support for a new, Directive node).
• 26/11/2024 Version 0.2.0 released (support for statements behind OMP sentinels, non-standard STOP and bug fix for type-guard statements).
• 31/01/2024 Version 0.1.4 released (resolves issues with WHERE statements and intrinsics).
• 18/09/2023 Version 0.1.3 released (resolves issues with support for DO CONCURRENT).
• 19/06/2023 Version 0.1.2 released (bug fix for handling of INCLUDE files).
• 28/04/2023 Version 0.1.1 released (extends F2008 support with the optional "::" in the MODULE PROCEDURE statement).
• 18/04/2023 Version 0.1.0 released and status changed from alpha to beta. See the CHANGELOG for more details.
• 16/06/2022 Version 0.0.16 released. See the CHANGELOG for details.
• 30/05/2022 Version 0.0.15 released. See the CHANGELOG for details.
• 10/03/2022 Version 0.0.14 released. See the CHANGELOG for details.
• 02/11/2021 Version 0.0.13 released. See the CHANGELOG for details.
• 26/04/2021 Version 0.0.12 released. See the CHANGELOG for details.
• 15/05/2020 Version 0.0.11 released. See the CHANGELOG for details.
• 18/11/2019 Version 0.0.10 released. See the CHANGELOG for details.
• 04/11/2019 Version 0.0.9 released. See the CHANGELOG for details.
• 03/12/2018 Version 0.0.8 released. See the CHANGELOG for details.
• 23/04/2018 Version 0.0.7 released. See the CHANGELOG for details.
• 22/03/2017 Version 0.0.2 released. Documentation made available on ReadTheDocs.
• 16/01/2017 Parser code extracted from F2PY project to form the base of the fparser project.

Introduction

This project is based upon the Fortran (77..2003) parser originally developed by Pearu Peterson for the F2PY project, www.f2py.com. It provides a parser for Fortran source code implemented purely in Python with minimal dependencies.

Obtaining

fparser is available from the Python Package Index. It may also be cloned from github. Alternatively, github provides tarballs for each of the releases.

Documentation

The documentation for fparser is hosted on ReadTheDocs.

Code Metrics

See also

www.f2py.com.