No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
circus has 246K monthly downloads and 2K GitHub stars. Version 0.19.0 supports Python 3.7+, first published in 2012.
It is showing limited recent maintenance under a permissive license, last released in Feb 2025.
It is built on top of psutil, pyzmq and tornado. It is used by 9 tracked packages, including aiida-core, galaxy and ai-cli-utils.
Package Insights
Package Risks
- High downloads but no recent maintenance activity
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
40
Popularity
68
Adoption
53
Community
80
Provenance
0
How the maintenance status was determined
Last commit
511 days ago
Monthly downloads
246,377
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
246,377
Stars
1,579
Stars per 1k downloads
6.41
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
6,901
Month daily avg
8,213
Momentum
-16.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.7
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
Apache Software License
•
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
508 days ago
Total releases
33
Releases/year
2.3
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
141
Monthly downloads
246,377
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
77
Issue Burden
88.7
per 1k stars
Discussions
1.9
per 1k stars
Fork Ratio
54.0%
contrib / forks
Stale Release
No
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
3.0K
macOS
90
Windows
7
Python Versions
3.10
39.9%
1.1K
3.11
29.9%
810
3.12
17.0%
462
3.14
9.7%
264
3.13
3.5%
94
Top Countries
1.
US
2.5K
US
2.
CN
260
CN
3.
IE
149
IE
4.
SG
117
SG
5.
RU
40
RU
6.
HK
39
HK
7.
IN
37
IN
8.
FR
34
FR
9.
JP
23
JP
10.
DE
21
DE
Package Information
License
Apache Software License
First Release
March 21, 2012
Last Release
1 year ago
Last Commit
1 year ago
Latest Version
0.19.0
Total Releases
33
Contributors
141
Open PRs
24
Archived
No
Python Versions
3.7
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