PyRank
pyasn1

pyasn1-modules

ASN.1 modules for pyasn1 library
PyPI GitHub
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

pyasn1-modules has 453.4M monthly downloads and 9 GitHub stars. Version 0.4.2 supports Python 3.8+, first published in 2011.

It is showing limited recent maintenance under a permissive license, last released in Mar 2025.

It is built on top of pyasn1. It is used by 400 tracked packages, including google-auth, gcloud-aio-storage and oauth2client.

Downloads
Day
14.0M
Week
100.5M
Month
453.4M
Stars
9
Forks
9
Issues
5
Version
0.4.2

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
40
Popularity
24
Adoption
70
Community
40
Provenance
0
How the maintenance status was determined
Last commit
425 days ago
Monthly downloads
453,441,367
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
453,441,367
Stars
9
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
14,360,715
Month daily avg
15,114,712
Momentum
-5.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.8
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
BSD
• 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
467 days ago
Total releases
28
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
Unknown
Monthly downloads
453,441,367
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
Contributor count is missing — this usually indicates the package has no linked GitHub repository.
Engagement
6
 
Issue Burden
-
per 1k stars
Discussions
-
per 1k stars
Fork Ratio
0.0%
contrib / forks
Stale Release
No
 
PR Velocity
-
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 9.7M
Windows 104.2K
macOS 87.2K

Python Versions

3.11
32.1% 2.9M
3.12
25.3% 2.3M
3.10
21.0% 1.9M
3.13
16.0% 1.4M
3.9
5.5% 498.7K

Top Countries

1. US US
7.5M
2. IN IN
369.5K
3. SG SG
327.9K
4. IE IE
253.4K
5. DE DE
224.9K
6. NL NL
171.7K
7. JP JP
139.0K
8. GB GB
122.3K
9. CA CA
101.6K
10. BE BE
99.0K

Package Information

License
BSD
First Release
March 6, 2011
Last Release
1 year ago
Last Commit
1 year ago
Latest Version
0.4.2
Total Releases
28
Contributors
0
Open PRs
1
Archived
No
Author
Ilya Etingof
Python Versions
3 3.8 3.9 3.10 3.11 3.12 3.13
Wheels
py2 py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links