PyRank
opencobra

cobra

COBRApy is a package for constraint-based modeling of metabolic networks.
PyPI GitHub
Downloads
Day
2.0K
Week
12.4K
Month
58.2K
Stars
560
Forks
233
Issues
79
Version
0.31.1

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
62
Adoption
57
Community
90
How the maintenance status was determined
Last commit
57 days ago
Monthly downloads
58,178
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
58,178
Stars
560
Stars per 1k downloads
9.63
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
1,765
Month daily avg
1,939
Momentum
-9.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
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
LGPL-2.0-or-later OR GPL-2.0-or-later
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
57 days ago
Total releases
102
Releases/year
7.7
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
64
Monthly downloads
58,178
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
95
 
Issue Burden
141.1
per 1k stars
Discussions
125.0
per 1k stars
Fork Ratio
27.5%
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 863
Windows 239
macOS 57

Python Versions

3.12
40.7% 454
3.11
39.7% 443
3.10
13.5% 150
3.13
4.4% 49
3.14
1.7% 19

Top Countries

1. US US
775
2. GB GB
196
3. NL NL
112
4. CN CN
30
5. FR FR
17
6. IN IN
16
7. TW TW
15
8. AU AU
12
9. HK HK
11
10. SG SG
10

Package Information

License
LGPL-2.0-or-later OR GPL-2.0-or-later
First Release
March 15, 2013
Last Release
1 month ago
Last Commit
1 month ago
Latest Version
0.31.1
Total Releases
102
Contributors
64
Open PRs
20
Archived
No
Author
The cobrapy core development team.
Python Versions
3.8 3.9 3.10 3.11
Wheels
cp27 cp33 cp34 cp35 cp36 py2 py3
Keywords
metabolism biology constraint-based linear programming mixed-integer optimization flux-balance analysis reconstruction
Tracking Since
January 6, 2026
Data Updated
May 17, 2026
Data Freshness
Fresh

Links