Package Insights
Score breakdown - each component scores 0–100, weighted by percentage
Maintenance
90
Popularity
55
Adoption
37
Community
90
How the maintenance status was determined
Last commit
13 days ago
Monthly downloads
5,559
•
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
5,559
Stars
276
Stars per 1k downloads
49.65
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
47
Month daily avg
185
Momentum
-74.4%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=3.10
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
GNU Affero General Public License v3
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
14 days ago
Total releases
134
Releases/year
17.5
•
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
52
Monthly downloads
5,559
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
75
Issue Burden
840.6
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
38.2%
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
2
Python Versions
3.11
100.0%
2
Top Countries
1.
US
3
US
2.
FR
2
FR
3.
KR
2
KR
4.
CA
1
CA
Dependencies
17
- bcbio-gff ==0.7.*,>=0.7.1
- biopython ==1.*,>=1.80
- cvxopt ==1.*,>=1.1.9
- importlib-resources >=5.3.0
- isodate <0.8,>=0.6
- jsonschema ==4.*,>=4.18.0
- networkx <4,>=2.5
- numpy <3,>=1
- packaging >=19.2
- pandas <3,>=1.4.0
- phylo-treetime <0.12,>=0.11.2
- pyfastx <3.0,>=1.0.0
- python-calamine >=0.2.0
- pyyaml
- referencing <1.0,>=0.29.1
- scipy ==1.*
- xopen <3,>=2.0.0
24 optional dependencies
- cram[dev]
- deepdiff[dev]
- flake8[dev]
- freezegun[dev]
- ipdb[dev]
- mypy[dev]
- nextstrain-sphinx-theme[dev]
- pandas-stubs[dev]
- pylint[dev]
- pytest[dev]
- pytest-cov[dev]
- pytest-mock[dev]
- recommonmark[dev]
- sphinx[dev]
- sphinx-argparse[dev]
- sphinx-autobuild[dev]
- sphinx-autodoc-typehints[dev]
- sphinx-markdown-tables[dev]
- sphinx-rtd-theme[dev]
- sphinx-tabs[dev]
- types-jsonschema[dev]
- types-pyyaml[dev]
- types-setuptools[dev]
- wheel[dev]
Used By
0
Not used by any tracked packages
Package Information
License
GNU Affero General Public License v3
First Release
September 4, 2018
Last Release
2 weeks ago
Last Commit
2 weeks ago
Latest Version
33.1.0
Total Releases
134
Contributors
52
Open PRs
36
Archived
No
Author
Nextstrain developers
Python Versions
3
3.10
3.11
3.12
3.13
3.14
Keywords
Topics
-
Tracking Since
January 6, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh