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PyPI · #19 most downloaded on PyPI

pycparser

3.0838M downloads/moeliben/pycparser ↗New releases in your daily digest, changelog included.

C parser in Python

Last release 8 months ago
21 Jan 2026
Release timing varies
gaps range from 1 weeks to 2.4 years
Most releases are documented
notes for 17 of 24 stable releases
Nothing withdrawn
no release was ever pulled
16 years old
24 releases · first in 2011

Release timeline

24 releases since 2011

2011201320152017

Releases

3.021 Jan 2026
Removed dependency on PLY, by rewriting pycparser to use a hand-written lexer and recursive-descent parser for C. No API changes / functionality chang
What's Changed

Removed dependency on PLY, by rewriting pycparser to use a hand-written lexer and recursive-descent parser for C. No API changes / functionality changes intended - the same AST is produced.

Add support for Python 3.14 and drop EOL 3.8 by @hugovk in #581

Update _ast_gen.py to be in sync with c_ast.py by @simonlindholm in #582

Full Changelog: release_v2.23...release_v3.00
Open source →
Additional notes
Please read the LLVM Release Notes and Clang Release Notes before downloading :

LLVM source code (9.9M) (.sig)

LLVM Test Suite (69M) (.sig)

Clang source code (6.9M) (.sig)

Clang Binaries for Debian/x86 (61M) (.sig)

Clang Binaries for Debian/x86_64 (58M) (.sig)

Clang Binaries for FreeBSD9/x86 (52M) (.sig)

Clang Binaries for FreeBSD9/x86_64 (49M) (.sig)

Clang Binaries for MacOS X/x86-64 (55M) (.sig)

Clang Binaries for Ubuntu-11.10/x86 (58M) (.sig)

Clang Binaries for Ubuntu-11.10/x86_64 (58M) (.sig)

Clang Binaries for Ubuntu-11.04/x86 (53M) (.sig)

Clang Binaries for Ubuntu-11.04/x86_64 (50M) (.sig)

DragonEgg (425K) (.sig)

2019

2021

2023

2025

20112026

One column per quarter.

Open source →

▸▾2.239 Sept 2025

Allow abstract declarator "static" (GH issue #539 ) by @gperciva in #545

What's Changed

Allow abstract declarator "static" (GH issue #539) by @gperciva in #545
Add support for Python 3.13 by @hugovk in #550
Add dirent and socket typedefs. by @MegaManSec in #558
Support for labels with no statement by @ignatirabo in #562
Accept empty 'case' or 'default' labels by @ignatirabo in #564
fix: preserve parentheses for statement exprs by @zawan-ila in #566
fix: hex float types by @zawan-ila in #567
Explicit error for comments, with README link by @cellularmitosis in #569
showemptyattrs option on Node.show() by @cellularmitosis in #570
Add fake typedefs for GNU Extension 128-bit integers. by @dj-wednesday in #577
Typedef for __kernel_sa_family_t in linux/socket.h by @crosser in #578

New Contributors

@gperciva made their first contribution in #545
@MegaManSec made their first contribution in #558
@ignatirabo made their first contribution in #562
@zawan-ila made their first contribution in #566
@cellularmitosis made their first contribution in #569
@dj-wednesday made their first contribution in #577
@crosser made their first contribution in #578

Full Changelog: release_v2.22...release_v2.23

Open source →

▸▾2.2230 Mar 2024

Add missing SCHAR limit defines by @matamegger in #449

What's Changed

Add missing SCHAR limit defines by @matamegger in #449
Use proper SPDX identifier by @Shortfinga in #474
Add Python 3.11 as a supported version by @erlend-aasland in #469
Fix multi-pragma/single statement blocks (#479) by @ldore in #480
Add an encoding parameter to parse_file by @jordr in #486
Feature/add pragma support by @jordr in #487
Set up permissions to ci.yml by @joycebrum in #492
_build_tables: Invalidate cache before importing generated modules by @mgorny in #494
Upgrade GitHub Actions by @cclauss in #500
Create a Security Policy by @joycebrum in #499
New example to generate AST from scratch by @Andree37 in #507
Add support for Python 3.12 by @hugovk in #515
ply: Make generated lextab.py deterministic by @jackrosenthal in #531

New Contributors

@matamegger made their first contribution in #449
@Shortfinga made their first contribution in #474
@erlend-aasland made their first contribution in #469
@jordr made their first contribution in #486
@joycebrum made their first contribution in #492
@mgorny made their first contribution in #494
@cclauss made their first contribution in #500
@Andree37 made their first contribution in #507
@jackrosenthal made their first contribution in #531

Full Changelog: release_v2.21...release_v2.22

Open source →

▸▾2.216 Nov 2021

Update TODO to mention bdist_wheel

Update TODO to mention bdist_wheel

Open source →

▸▾2.204 Mar 2020

Update instructions to release. Release 2.20 was pushed

Update instructions to release. Release 2.20 was pushed

Open source →

▸▾2.1919 Sept 2018

Nothing published for this version

▸▾2.184 Jul 2017

Update version number to 2.18 for release

Update version number to 2.18 for release

Open source →

▸▾2.1729 Oct 2016

Merge branch 'master' of github.com:eliben/pycparser into try-release…

Merge branch 'master' of github.com:eliben/pycparser into try-release…

Open source →

▸▾2.1618 Oct 2016

Prepare 2.16 for release

Prepare 2.16 for release

Open source →

▸▾2.1518 Oct 2016

Prepare for releasing v2.15

Prepare for releasing v2.15

Open source →

▸▾2.1410 Jun 2015

Nothing published for this version

▸▾2.1312 May 2015

Nothing published for this version

▸▾2.1222 Apr 2015

Nothing published for this version

▸▾2.1121 Apr 2015

Nothing published for this version

▸▾2.103 Aug 2013

Nothing published for this version

▸▾2.09.129 Dec 2012

Nothing published for this version

▸▾2.0927 Dec 2012

Please read the Release Notes before downloading :

Please read the Release Notes before downloading :

LLVM source code (9M) (.sig)
LLVM Test Suite (70M) (.sig)
LLVM-GCC 4.2 Front End Source Code (53M) (.sig)
Clang source code (6M) (.sig)
Clang Binaries for FreeBSD8/x86 (20M) (.sig)
Clang Binaries for FreeBSD8/x86_64 (19.7M) (.sig)
Clang Binaries for Linux/x86 (62M) (.sig)
Clang Binaries for Linux/x86_64 (39M) (.sig)
Clang Binaries for MacOS X/x86-64 (71M) (.sig)
Clang Binaries for Mingw32/x86 (23M) (.sig)
LLVM Binaries for Mingw32/x86 (23M) (.sig)
LLVM-GCC 4.2 Front End Binaries for FreeBSD8/x86 (23M) (.sig)
LLVM-GCC 4.2 Front End Binaries for FreeBSD8/x86_64 (24M) (.sig)
LLVM-GCC 4.2 Front End Binaries for Linux/x86 (57.8M) (.sig)
LLVM-GCC 4.2 Front End Binaries for Linux/x86_64 (67M) (.sig)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86-64 (Darwin 10) (33.8M) (.sig)
LLVM-GCC 4.2 Front End Binaries for Mingw32/x86 (26M) (.sig)
DragonEgg (213K) (.sig)

Open source →

▸▾2.0815 Aug 2012

Please read the Release Notes before downloading :

Please read the Release Notes before downloading :

LLVM source code (9M)
LLVM Test Suite (69M)
LLVM-GCC 4.2 Front End Source Code (53M)
Clang source code (5.4M)
Clang Binaries for FreeBSD8/x86 (23M)
Clang Binaries for FreeBSD8/x86_64 (23M)
Clang Binaries for Linux/x86 (52M)
Clang Binaries for Linux/x86_64 (49M)
Clang Binaries for MacOS X/x86-64 (59M)
LLVM-GCC 4.2 Front End Binaries for FreeBSD8/x86 (32M)
LLVM-GCC 4.2 Front End Binaries for FreeBSD8/x86_64 (55M)
LLVM-GCC 4.2 Front End Binaries for Linux/x86 (55M)
LLVM-GCC 4.2 Front End Binaries for Linux/x86_64 (47M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86-64 (Darwin 10 ) (40M)
LLVM-GCC 4.2 Front End Binaries for Mingw32/x86 (26M)
DragonEgg (193K)

Open source →

▸▾2.0716 Jun 2012

Please read the Release Notes before downloading:

Please read the Release Notes before downloading:

LLVM source code (8M)
LLVM Test Suite (68M)
LLVM-GCC 4.2 Front End Source Code (53M)
Clang source code (4.7M)
Clang Binaries for FreeBSD8/x86 (65M)
Clang Binaries for FreeBSD8/x86_64 (68M)
Clang Binaries for Linux/x86 (64M)
Clang Binaries for Linux/x86_64 (49M)
Clang Binaries for MacOS X/x86 (56M)
LLVM Binaries for Mingw32/x86 (24M)
LLVM-GCC 4.2 Front End Binaries for FreeBSD8/x86 (78M)
LLVM-GCC 4.2 Front End Binaries for FreeBSD8/x86_64 (82M)
LLVM-GCC 4.2 Front End Binaries for Linux/x86 (54M)
LLVM-GCC 4.2 Front End Binaries for Linux/x86_64 (44M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86 (Darwin 10 ) (42M)
LLVM-GCC 4.2 Front End Binaries for Mingw32/x86 (26M)
DragonEgg (193K)
VMKit (496K)

Open source →

▸▾2.064 Feb 2012

Please read the Release Notes before downloading:

Please read the Release Notes before downloading:

LLVM source code (7.4M)
LLVM Test Suite (67M)
LLVM-GCC 4.2 Front End Source Code (46M)
Clang source code (3.7M)
Clang Binaries for FreeBSD8/x86 (52M)
Clang Binaries for FreeBSD8/x86_64 (55M)
Clang Binaries for Linux/x86 (52M)
Clang Binaries for Linux/x86_64 (61M)
Clang Binaries for MacOS X/x86 (50M)
LLVM Binaries for Mingw32/x86 (24M)
LLVM-GCC 4.2 Front End Binaries for FreeBSD8/x86 (37M)
LLVM-GCC 4.2 Front End Binaries for FreeBSD8/x86_64 (39M)
LLVM-GCC 4.2 Front End Binaries for Linux/x86 (41M)
LLVM-GCC 4.2 Front End Binaries for Linux/x86_64 (63M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86 (Darwin 9 ) (50M)
LLVM-GCC 4.2 Front End Binaries for Mingw32/x86 (24M )
VMKit (340KB)

Open source →

▸▾2.0516 Oct 2011

Please read the Release Notes before downloading:

Please read the Release Notes before downloading:

LLVM source code (6M)
LLVM Test Suite (67M)
LLVM Binaries for Mingw32/x86 (16M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86 (Darwin 9 ) (34M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/PowerPC (Darwin 9) (31M)
LLVM-GCC 4.2 Front End Binaries for Red Hat Enterpris e Linux4/x86 (55M)
LLVM-GCC 4.2 Front End Binaries for Mingw32/x86 (22M )
LLVM-GCC 4.2 Front End Source Code (47M)
VMKit (316KB)

Open source →

▸▾2.0421 May 2011

Please read the Release Notes before downloading:

Please read the Release Notes before downloading:

LLVM source code (6M)
LLVM Test Suite (65M)
LLVM Binaries for Mingw32/x86 (14M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86 (Darwin 9) (30M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/PowerPC (Darwin 9) (27M)
LLVM-GCC 4.2 Front End Binaries for Red Hat Enterprise Linux4/x86 (42M)
LLVM-GCC 4.2 Front End Binaries for Mingw32/x86 (22M)
LLVM-GCC 4.2 Front End Source Code (47M)
VMKit (287KB)

Open source →

▸▾2.037 Mar 2011

Please read the Release Notes before downloading:

Please read the Release Notes before downloading:

LLVM source code (5.8M)
LLVM Test Suite (68M)
LLVM Binaries for Mingw32/x86 (14M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86 (Darwin 9) (26M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86 (Darwin 8) (29M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/PowerPC (Darwin 8) (32M)
LLVM-GCC 4.2 Front End Binaries for Red Hat Enterprise Linux4/x86 (44M)
LLVM-GCC 4.2 Front End Binaries for Mingw32/x86 (22M)
LLVM-GCC 4.2 Front End Source Code (49M)

Open source →

▸▾2.0218 Feb 2011

Please read the Release Notes before downloading:

Please read the Release Notes before downloading:

LLVM source code (5.4M)
LLVM Test Suite (53M)
LLVM Binaries for Mingw32/x86 (14M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/x86 (50M)
LLVM-GCC 4.2 Front End Binaries for MacOS X/PowerPC (49M)
LLVM-GCC 4.2 Front End Binaries for Red Hat Enterprise Linux4/x86 (42M)
LLVM-GCC 4.2 Front End Binaries for Mingw32/x86 (22M)
LLVM-GCC 4.0 Front End Binaries for MacOS X/x86 (41M)
LLVM-GCC 4.0 Front End Binaries for MacOS X/PowerPC (39M)
LLVM-GCC 4.0 Front End Binaries for Red Hat Enterprise Linux4/x86 (31M)
LLVM-GCC 4.0 Front End Binaries for Mingw32/x86 (17M)
LLVM-GCC 4.2 Front End Source Code (49M)
LLVM-GCC 4.0 Front End Source Code (36M)

Open source →

Your coding agent can read these notes before it upgrades. Set up the MCP server →