No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
janus has 6.7M monthly downloads and 963 GitHub stars. Version 2.0.0 supports Python 3.9+, first published in 2015.
It is actively maintained under a permissive license, last released in Dec 2024.
It is used by 71 tracked packages, including dash, localstack-ext and azure-iot-device.
GitHub topics include asyncio, queue and threadsafe.
Package Insights
Package Risks
- No releases in 557 days despite active commits
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
59
Adoption
70
Community
55
Provenance
100
How the maintenance status was determined
Last commit
12 days ago
Monthly downloads
6,674,658
•
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
6,674,658
Stars
963
Stars per 1k downloads
0.14
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
201,605
Month daily avg
222,489
Momentum
-9.4%
((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
Apache 2
•
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
570 days ago
Total releases
21
Releases/year
1.9
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
52
Monthly downloads
6,674,658
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
55
Issue Burden
2.1
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
98.1%
contrib / forks
Stale Release
557d
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
148.2K
Windows
4.8K
macOS
2.5K
Python Versions
3.13
40.1%
58.2K
3.14
23.5%
34.2K
3.12
18.4%
26.8K
3.11
9.9%
14.4K
3.10
8.1%
11.8K
Top Countries
1.
US
75.0K
US
2.
GB
48.7K
GB
3.
NL
4.5K
NL
4.
DE
4.1K
DE
5.
IN
3.8K
IN
6.
SG
1.9K
SG
7.
FR
1.7K
FR
8.
RU
1.3K
RU
9.
IE
1.1K
IE
10.
PL
1.0K
PL
Dependencies
0
No dependencies
Used By
71
- dash
- localstack-ext
- azure-iot-device
- aiomonitor
- datasette
- neuro-san
- freqtrade
- hail
- backend-ai-client
- vllm-omni
- backend-ai-common
- backend-ai-agent
- acp-sdk
- backend-ai-kernel
- ansible-rulebook
- backend-ai-storage-proxy
- rekuest-next
- agentstack-sdk
- buildgrid
- feeluown
- csp-gateway
- bergen
- arklex
- kailash-nexus
- quantaxis
- burst-link-protocol
- vocode
- beeai-sdk
- wizwalker
- fans
- ais-bench-benchmark
- llamphouse
- pixie-sdk
- aioflows
- dbus2mqtt
- backend-ai-kernel-runner
- riptide-lib
- kagenti-adk
- pyaware
- interstate-py
- aiocypher
- ghoshell-moss
- pixie-ai-sdk
- agentune-analyze
- titanfe
- drop-backend
- shimmer
- asynclit
- agentgraph
- anchio
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
Apache 2
First Release
June 11, 2015
Last Release
1 year ago
Last Commit
1 week ago
Latest Version
2.0.0
Total Releases
21
Contributors
52
Open PRs
9
Archived
No
Author
Andrew Svetlov <andrew.svetlov@gmail.com>
Python Versions
3
3.9
3.10
3.11
3.12
3.13
Wheels
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh