No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
rfc3987-syntax has 38.4M monthly downloads and 1 GitHub stars. Version 1.1.0 supports Python 3.9+, first published in 2025.
It is minimally maintained under a permissive license, last released in Jul 2025.
It is built on top of lark. It is used by 4 tracked packages, including a-piece-of-shit, rdflib-reasoning-middleware and a-mailx.
Package Insights
Package Risks
- High bus factor: only 2 contributor(s) for this download volume
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
20
Popularity
12
Adoption
60
Community
45
Provenance
0
How the maintenance status was determined
Last commit
354 days ago
Monthly downloads
38,371,007
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
38,371,007
Stars
1
Stars per 1k downloads
0.00
•
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
1,082,072
Month daily avg
1,279,034
Momentum
-15.4%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.9
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
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
354 days ago
Total releases
2
Releases/year
1.8
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
2
Monthly downloads
38,371,007
•
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
28
Issue Burden
-
per 1k stars
Discussions
-
per 1k stars
Fork Ratio
33.3%
contrib / forks
Stale Release
No
PR Velocity
Active
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
681.6K
Windows
27.2K
macOS
11.7K
Python Versions
3.10
29.2%
198.3K
3.12
29.0%
197.1K
3.11
18.8%
127.7K
3.13
15.9%
107.6K
3.9
7.1%
47.9K
Top Countries
1.
US
458.5K
US
2.
IE
54.0K
IE
3.
NL
44.2K
NL
4.
FI
36.4K
FI
5.
SG
35.9K
SG
6.
IN
14.7K
IN
7.
DE
10.8K
DE
8.
BR
7.4K
BR
9.
CA
6.6K
CA
10.
JP
6.5K
JP
Package Information
License
MIT
First Release
May 18, 2025
Last Release
11 months ago
Last Commit
11 months ago
Latest Version
1.1.0
Total Releases
2
Contributors
2
Open PRs
9
Archived
No
Author
Jan Kowalleck
Python Versions
3
3.9
Wheels
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh