pyparsing

Python library for creating PEG parsers

Science Score: 36.0%

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Low similarity (14.9%) to scientific vocabulary

Keywords

parser-combinators parsing parsing-expression-grammar parsing-library peg-parsers python python-2 python-3 python2 python3 text-processing

Keywords from Contributors

templates closember unit-testing pallets yapf apps views pre-commit-hook gofmt formatter

Last synced: 6 months ago · JSON representation

Repository

Python library for creating PEG parsers

Basic Info

Host: GitHub
Owner: pyparsing
License: mit
Language: Python
Default Branch: master
Homepage:
Size: 8.32 MB

Statistics

Stars: 2,380
Watchers: 26
Forks: 291
Open Issues: 38
Releases: 46

Topics

parser-combinators parsing parsing-expression-grammar parsing-library peg-parsers python python-2 python-3 python2 python3 text-processing

Created almost 9 years ago · Last pushed 7 months ago

Metadata Files

Readme Changelog Contributing Funding License Code of conduct Security

README.rst

PyParsing -- A Python Parsing Module
====================================

|Version| |Build Status| |Coverage| |License| |Python Versions| |Snyk Score|

Introduction
============

The pyparsing module is an alternative approach to creating and
executing simple grammars, vs. the traditional lex/yacc approach, or the
use of regular expressions. The pyparsing module provides a library of
classes that client code uses to construct the grammar directly in
Python code.

*[Since first writing this description of pyparsing in late 2003, this
technique for developing parsers has become more widespread, under the
name Parsing Expression Grammars - PEGs. See more information on PEGs*
`here `__
*.]*

Here is a program to parse ``"Hello, World!"`` (or any greeting of the form
``"salutation, addressee!"``):

.. code:: python

    from pyparsing import Word, alphas
    greet = Word(alphas) + "," + Word(alphas) + "!"
    hello = "Hello, World!"
    print(hello, "->", greet.parse_string(hello))

The program outputs the following::

    Hello, World! -> ['Hello', ',', 'World', '!']

The Python representation of the grammar is quite readable, owing to the
self-explanatory class names, and the use of '+', '|' and '^' operator
definitions.

The parsed results returned from ``parse_string()`` is a collection of type
``ParseResults``, which can be accessed as a
nested list, a dictionary, or an object with named attributes.

The pyparsing module handles some of the problems that are typically
vexing when writing text parsers:

- extra or missing whitespace (the above program will also handle ``"Hello,World!"``, ``"Hello , World !"``, etc.)
- quoted strings
- embedded comments

The examples directory includes a simple SQL parser, simple CORBA IDL
parser, a config file parser, a chemical formula parser, and a four-
function algebraic notation parser, among many others.

Documentation
=============

There are many examples in the online docstrings of the classes
and methods in pyparsing. You can find them compiled into `online docs `__. Additional
documentation resources and project info are listed in the online
`GitHub wiki `__. An
entire directory of examples can be found `here `__.

License
=======

MIT License. See header of the `pyparsing __init__.py `__ file.

History
=======

See `CHANGES `__ file.

.. |Build Status| image:: https://github.com/pyparsing/pyparsing/actions/workflows/ci.yml/badge.svg
   :target: https://github.com/pyparsing/pyparsing/actions/workflows/ci.yml

.. |Coverage| image:: https://codecov.io/gh/pyparsing/pyparsing/branch/master/graph/badge.svg
  :target: https://codecov.io/gh/pyparsing/pyparsing

.. |Version| image:: https://img.shields.io/pypi/v/pyparsing?style=flat-square
    :target: https://pypi.org/project/pyparsing/
    :alt: Version

.. |License| image:: https://img.shields.io/pypi/l/pyparsing.svg?style=flat-square
    :target: https://pypi.org/project/pyparsing/
    :alt: License

.. |Python Versions| image:: https://img.shields.io/pypi/pyversions/pyparsing.svg?style=flat-square
    :target: https://pypi.org/project/python-liquid/
    :alt: Python versions

.. |Snyk Score| image:: https://snyk.io//advisor/python/pyparsing/badge.svg
   :target: https://snyk.io//advisor/python/pyparsing
   :alt: pyparsing

Owner

Name: Pyparsing
Login: pyparsing
Kind: organization

Repositories: 7
Profile: https://github.com/pyparsing

GitHub Events

Total

Create event: 4
Release event: 2
Issues event: 36
Watch event: 152
Issue comment event: 83
Push event: 77
Pull request review event: 1
Pull request event: 28
Gollum event: 8
Fork event: 11

Last Year

Create event: 4
Release event: 2
Issues event: 36
Watch event: 152
Issue comment event: 83
Push event: 77
Pull request review event: 1
Pull request event: 28
Gollum event: 8
Fork event: 11

Committers

Last synced: 7 months ago

All Time

Total Commits: 1,391
Total Committers: 75
Avg Commits per committer: 18.547
Development Distribution Score (DDS): 0.17

Past Year

Commits: 206
Committers: 9
Avg Commits per committer: 22.889
Development Distribution Score (DDS): 0.126

Top Committers

Name	Email	Commits
ptmcg	p**g@a**m	1,155
Max Fischer	m**1@g**m	38
Jon Dufresne	j**e@g**m	32
FeRD (Frank Dana)	f**c@g**m	17
Cengiz Kaygusuz	c**z@g**m	15
Matěj Cepl	m**l@c**u	14
Matt Carmody	3****y	11
Devin J. Pohly	d**y@g**m	7
Hugo	h****k	7
Michael Milton	t**t@g**m	6
Kyle Lahnakoski	k**i@m**m	5
Michael Smedberg	m**g@z**m	4
InSync	1****o	4
cclauss	c**s@b**h	3
Stephen Rosen	s**n@g**g	3
Kazantcev Andrey	4****d	2
retsyo	l**n@g**m	2
jmcb	j**p@p**m	2
Riccardo Coccioli	v****-	2
Odysseas (Ody) Krystalakos	O****r	2
Gabriel Gerlero	g****o	2
Eric Wald	g**r@b**g	2
Brandon LeBlanc	b**n@l**s	2
Aussie Schnore	a**3@y**m	2
Andrey Sobolev	a**v@g**m	2
Michal Čihař	m**l@c**m	1
Michał Górny	m**y@g**g	1
xecgr	f**t@g**m	1
Dominic Davis-Foster	d**c@d**k	1
Daniel Wagner-Hall	d**r@g**m	1
and 45 more...

Committer Domains (Top 20 + Academic)

fontein.de: 1 coales.co.uk: 1 ksunden.space: 1 lab26.net: 1 umich.edu: 1 prados.fr: 1 coup.net.nz: 1 iress.com: 1 rwp.is: 1 bdragon.rtk0.net: 1 roseman.org.uk: 1 davis-foster.co.uk: 1 gentoo.org: 1 cihar.com: 1 leblanc.codes: 1 brainshell.org: 1 globus.org: 1 bluewin.ch: 1 zendesk.com: 1 mozilla.com: 1

Issues and Pull Requests

Last synced: 6 months ago

All Time

Total issues: 147
Total pull requests: 96
Average time to close issues: 4 months
Average time to close pull requests: about 1 month
Total issue authors: 115
Total pull request authors: 37
Average comments per issue: 3.35
Average comments per pull request: 1.79
Merged pull requests: 64
Bot issues: 0
Bot pull requests: 0

Past Year

Issues: 22
Pull requests: 28
Average time to close issues: 8 days
Average time to close pull requests: 3 days
Issue authors: 19
Pull request authors: 7
Average comments per issue: 1.77
Average comments per pull request: 1.14
Merged pull requests: 21
Bot issues: 0
Bot pull requests: 0

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Top Authors

Issue Authors

ptmcg (7)
egberts (4)
djpohly (4)
grv87 (4)
RoDuth (3)
rowlesmr (3)
InSyncWithFoo (3)
volans- (2)
netmonitoring (2)
anntzer (2)
aucampia (2)
dave-kennedy (2)
nijel (2)
Honza0297 (2)
douloveppt (2)

Pull Request Authors

ferdnyc (15)
djpohly (10)
InSyncWithFoo (10)
jayaddison (6)
joelsgp (4)
gerlero (4)
sirosen (3)
felixfontein (2)
baruchoxman (2)
MajorTanya (2)
pavlozt (2)
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Top Labels

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Packages

Total packages: 21
Total downloads:
- pypi 187,628,030 last-month
- homebrew 8,231 last-month
Total docker downloads: 10,486,710,872

Total dependent packages: 1,876
(may contain duplicates)
Total dependent repositories: 268,400
(may contain duplicates)
Total versions: 159
Total maintainers: 2

conda-forge.org: pyparsing

The pyparsing module is an alternative approach to creating and executing simple grammars, vs. the traditional lex/yacc approach, or the use of regular expressions. The pyparsing module provides a library of classes that client code uses to construct the grammar directly in Python code.

Homepage: https://pyparsing-docs.readthedocs.io/
License: MIT
Latest release: 3.0.9
published almost 4 years ago

Versions: 29
Dependent Packages: 115
Dependent Repositories: 2,110

Rankings

Dependent repos count: 0.2%

Average: 0.5%

Dependent packages count: 0.7%

Last synced: 6 months ago

pypi.org: pyparsing

pyparsing module - Classes and methods to define and execute parsing grammars

Homepage: https://github.com/pyparsing/pyparsing/
Documentation: https://pyparsing.readthedocs.io/
License: MIT License
Latest release: 3.2.3
published 11 months ago

Versions: 81
Dependent Packages: 1,663
Dependent Repositories: 264,180
Downloads: 187,628,030 Last month
Docker Downloads: 10,486,710,872

Rankings

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Docker downloads count: 0.0%

Downloads: 0.0%

Dependent packages count: 0.0%

Average: 1.1%

Stargazers count: 2.2%

Forks count: 4.2%

Maintainers (1)

ptmcg

Last synced: 6 months ago

alpine-v3.13: py3-parsing

An object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 2.4.7-r1
published over 5 years ago

Versions: 1
Dependent Packages: 7
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Dependent packages count: 2.3%

Average: 2.7%

Stargazers count: 3.9%

Forks count: 4.5%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-v3.15: py3-parsing

An object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 2.4.7-r2
published almost 5 years ago

Versions: 1
Dependent Packages: 12
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Dependent packages count: 2.6%

Average: 2.8%

Stargazers count: 4.2%

Forks count: 4.6%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-v3.18: py3-parsing-pyc

Precompiled Python bytecode for py3-parsing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.0.9-r2
published almost 3 years ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Dependent packages count: 0.0%

Average: 2.9%

Stargazers count: 5.7%

Forks count: 5.7%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-v3.18: py3-parsing

An object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.0.9-r2
published almost 3 years ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Dependent packages count: 0.0%

Average: 2.9%

Stargazers count: 5.7%

Forks count: 5.7%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-v3.16: py3-parsing

An object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 2.4.7-r3
published about 4 years ago

Versions: 1
Dependent Packages: 17
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Dependent packages count: 2.9%

Average: 3.0%

Stargazers count: 4.5%

Forks count: 4.7%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-v3.17: py3-parsing

An object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.0.9-r0
published over 3 years ago

Versions: 1
Dependent Packages: 24
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Dependent packages count: 1.7%

Average: 3.2%

Forks count: 5.3%

Stargazers count: 5.8%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-v3.14: py3-parsing

An object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 2.4.7-r2
published almost 5 years ago

Versions: 1
Dependent Packages: 3
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Average: 3.5%

Stargazers count: 3.9%

Forks count: 4.5%

Dependent packages count: 5.5%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-edge: py3-parsing-pyc

Precompiled Python bytecode for py3-parsing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.2.3-r0
published 10 months ago

Versions: 8
Dependent Packages: 0
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Stargazers count: 6.1%

Average: 6.9%

Forks count: 7.0%

Dependent packages count: 14.4%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-edge: py3-parsing

Object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.2.3-r0
published 10 months ago

Versions: 9
Dependent Packages: 0
Dependent Repositories: 0

Rankings

Dependent repos count: 0.0%

Stargazers count: 5.9%

Average: 6.9%

Forks count: 7.0%

Dependent packages count: 14.6%

Maintainers (1)

ncopa@alpinelinux.org

Last synced: 6 months ago

anaconda.org: pyparsing

Homepage: https://github.com/pyparsing/pyparsing/
License: MIT
Latest release: 3.2.0
published over 1 year ago

Versions: 15
Dependent Packages: 11
Dependent Repositories: 2,110

Rankings

Dependent repos count: 1.4%

Dependent packages count: 5.1%

Average: 11.5%

Stargazers count: 18.4%

Forks count: 21.1%

Last synced: 6 months ago

formulae.brew.sh: python-pyparsing

Python library for creating PEG parsers

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Status: removed
Latest release: 3.1.2
published almost 2 years ago

Versions: 2
Dependent Packages: 24
Dependent Repositories: 0
Downloads: 8,231 Last month

Rankings

Dependent packages count: 18.6%

Average: 47.9%

Dependent repos count: 56.3%

Downloads: 68.7%

Last synced: 6 months ago

alpine-v3.19: py3-parsing

Object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.1.1-r0
published over 2 years ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

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Dependent repos count: 0.0%

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Average: 100%

Maintainers (1)

ncopa@alpinelinux.org

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alpine-v3.21: py3-parsing-pyc

Precompiled Python bytecode for py3-parsing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.1.4-r0
published over 1 year ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

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ncopa@alpinelinux.org

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alpine-v3.19: py3-parsing-pyc

Precompiled Python bytecode for py3-parsing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.1.1-r0
published over 2 years ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

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ncopa@alpinelinux.org

Last synced: 6 months ago

alpine-v3.22: py3-parsing

Object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.2.3-r0
published 10 months ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

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alpine-v3.20: py3-parsing

Object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.1.2-r1
published almost 2 years ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

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ncopa@alpinelinux.org

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alpine-v3.22: py3-parsing-pyc

Precompiled Python bytecode for py3-parsing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.2.3-r0
published 10 months ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

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ncopa@alpinelinux.org

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alpine-v3.21: py3-parsing

Object-oriented approach to text processing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.1.4-r0
published over 1 year ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

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ncopa@alpinelinux.org

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alpine-v3.20: py3-parsing-pyc

Precompiled Python bytecode for py3-parsing

Homepage: https://github.com/pyparsing/pyparsing
License: MIT
Latest release: 3.1.2-r1
published almost 2 years ago

Versions: 1
Dependent Packages: 0
Dependent Repositories: 0

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