Top 5 Python parsing-library Projects

Lark

35 4,471 7.5 Python

Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.

Project mention: Show HN: I wrote a RDBMS (SQLite clone) from scratch in pure Python | news.ycombinator.com | 2023-08-13

Lark supports, and recommends, writing and storing the grammar in a .lark file. We have syntax highlighting support in all major IDEs, and even in github itself. For example, here is Lark's built-in grammar for Python: https://github.com/lark-parser/lark/blob/master/lark/grammar...
You can also test grammars "live" in our online IDE: https://www.lark-parser.org/ide/
The rationale is that it's more terse and has less visual clutter than a DSL over Python, which makes it easier to read and write.

pyparsing

13 2,083 8.5 Python

Python library for creating PEG parsers

Project mention: Pyparsing 3.1.0 released | /r/pyparsing | 2023-06-19

After over a year since the last release of pyparsing, I've bundled up all the bug-fixes and changes, and they are now released as pyparsing 3.1.0. Visit this link for the details.

InfluxDB

www.influxdata.com sponsored

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parson

1 56 2.0 Python

Yet another PEG parser combinator library and DSL (by darius)
jsonify-opening-hours

2 8 0.0 Python

a python library to convert arbitrary strings representing business opening hours into a JSON format that's easier to use in code
molextract

1 7 2.5 Python

Parse Molcas/OpenMolcas (and other computational chemistry software) output files in a modular way
WorkOS

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The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-08-13.