PyRank
textX

arpeggio

Parser interpreter based on PEG grammars written in Python http://textx.github.io/Arpeggio/
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

arpeggio has 1.8M monthly downloads and 288 GitHub stars. Version 2.0.3, first published in 2014.

It is minimally maintained under a permissive license, last released in Sep 2025.

It is used by 34 tracked packages, including textx, besser and experimaestro.

GitHub topics include parser, parsing and parsing-expression-grammar.

Downloads
Day
53.6K
Week
400.2K
Month
1.8M
Stars
288
Forks
54
Issues
25
Version
2.0.3

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
50
Popularity
51
Adoption
70
Community
50
Provenance
0
How the maintenance status was determined
Last commit
193 days ago
Monthly downloads
1,821,075
Active
Activity within 30 days
Stable
Activity within 31-180 days
• Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
1,821,075
Stars
288
Stars per 1k downloads
0.16
Industry Standard
> 10,000,000 monthly downloads
• Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
57,165
Month daily avg
60,702
Momentum
-5.8%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
Not specified
Cutting Edge
Minimum supported version is 3.12 or newer
Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
• Unknown
No requires_python specified or unparseable
Package does not declare a minimum Python version.
License categories
License
MIT
• Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
298 days ago
Total releases
30
Releases/year
2.5
Rapid
Last release within 365 days and > 12 releases/year
• Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
26
Monthly downloads
1,821,075
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
• Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
68
 
Issue Burden
86.8
per 1k stars
Discussions
34.7
per 1k stars
Fork Ratio
48.1%
contrib / forks
Stale Release
104d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 20.6K
macOS 1.1K
Windows 660

Python Versions

3.12
35.8% 6.9K
3.13
21.2% 4.1K
3.10
17.3% 3.4K
3.11
15.1% 2.9K
3.14
10.6% 2.0K

Top Countries

1. US US
19.0K
2. DE DE
1.5K
3. SG SG
639
4. IE IE
503
5. CN CN
398
6. NL NL
212
7. GB GB
148
8. FI FI
116
9. SE SE
91
10. HK HK
83
GitHub Topics
Tags from the package's GitHub repository describing what it does.

Package Information

License
MIT
First Release
August 16, 2014
Last Release
9 months ago
Last Commit
6 months ago
Latest Version
2.0.3
Total Releases
30
Contributors
26
Open PRs
4
Archived
No
Author
Igor R. Dejanovic
Python Versions
3 3.6 3.7 3.8 3.9 3.10
Wheels
py2 py3
Keywords
parser PEG packrat library interpreter
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links