PyPI Stats
hachmannlab

chemml

ChemML is a machine learning and informatics program suite for the chemical and materials sciences.
PyPI GitHub
Downloads
Day
22
Week
170
Month
675
Stars
174
Forks
33
Issues
5
Version
1.3

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
46
Adoption
28
Community
40
How the maintenance status was determined
Last commit
14 days ago
Monthly downloads
675
• 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
675
Stars
174
Stars per 1k downloads
257.78
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
Needs at least 1,000 monthly downloads to classify popularity.
How download momentum is calculated
Week daily avg
24
Month daily avg
22
Momentum
—
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Momentum not reported for packages with < 5,000 monthly downloads — percentages are noisy at low volume.
Python version support tiers
requires_python
Not specified
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
Package does not declare a minimum Python version.
License categories
License
BSD-3C
• 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
943 days ago
Total releases
17
Releases/year
2.1
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
11
Monthly downloads
675
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
43
 
Issue Burden
28.7
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
33.3%
contrib / forks
Stale Release
928d
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

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

Downloads by OS

Linux 8

Python Versions

3.11
100.0% 8

Top Countries

1. US US
8
2. CA CA
2

Dependencies

14
9 optional dependencies

Used By

1

GitHub Topics

Tags from the package's GitHub repository describing what it does.

Package Information

License
BSD-3C
First Release
March 23, 2018
Last Release
2 years ago
Last Commit
2 weeks ago
Latest Version
1.3
Total Releases
17
Contributors
11
Open PRs
1
Archived
No
Author
Mojtaba Haghighatlari, Johannes Hachmann
Python Versions
3
Wheels
py2 py3
Keywords
Machine Learning Data Mining Quantum Chemistry Materials Science Drug Discovery
Tracking Since
January 14, 2026
Data Updated
May 3, 2026
Data Freshness
Fresh

Links