PyRank
rxn4chemistry

rxnmapper

RXNMapper: Unsupervised attention-guided atom-mapping. Code complementing our Science Advances publication on "Extraction of organic chemistry grammar from unsupervised learning of chemical reactions" (https://advances.sciencemag.org/content/7/15/eabe4166).
PyPI GitHub
More links
Download Stats
Monthly downloads
4.1K
Weekly downloads
1.3K
GitHub stars
385

Downloads in the 30 and 7 days to October 10, 2026. Refreshed weekly.

Package Information

Latest Version
0.4.3
Requires Python
>=3.6
Licence
MIT
Last Release
8 months ago
Author
IBM RXN team
First Release
May 14, 2020
Total Releases
20
Python Versions
3 3.6 3.7 3.8 3.9 3.10 3.11
No reported malware or high/critical advisories · Details

The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
50
Popularity
54
Adoption
36
Community
40
Provenance
0
How the maintenance status was determined
Last commit
244 days ago
Monthly downloads
4,087
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
4,087
Stars
385
Stars per 1k downloads
94.20
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
189
Month daily avg
136
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.
More insights and metrics
Python version support tiers
requires_python
>=3.6
Cutting Edge
Minimum supported version is 3.14 or newer
Modern
Minimum supported version is 3.11 to 3.13
• Legacy
Supports 3.10 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
MIT
• 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
244 days ago
Total releases
20
Releases/year
3.1
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
12
Monthly downloads
4,087
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
48
 
Issue Burden
7.8
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
16.2%
contrib / forks
Stale Release
No
 
PR Velocity
Quiet
 
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 40
Windows 6
macOS 4

Python Versions

3.12
40.0% 18
3.11
31.1% 14
3.10
13.3% 6
3.7
8.9% 4
3.13
6.7% 3

Top Countries

1. US US
43
2. CN CN
11
3. KR KR
5
4. IN IN
3
5. GB GB
2
6. IE IE
2
7. JP JP
2
8. NL NL
2
9. AT AT
1
10. BE BE
1

Weekly Downloads

GitHub Stars

Dependencies

5
12 optional dependencies
  • black>=22.1.0[dev]
    extra == "dev"
  • bump2version>=1.0.1[dev]
    extra == "dev"
  • flake8>=3.7.9[dev]
    extra == "dev"
  • isort>=5.10.0[dev]
    extra == "dev"
  • mypy>=0.910[dev]
    extra == "dev"
  • pytest>=5.4.1[dev]
    extra == "dev"
  • rdkit>=2022.3.4[rdkit]
    python_version >= "3.7" and extra == "rdkit"
  • rdkit-pypi>=2021.3.2[rdkit]
    python_version < "3.7" and extra == "rdkit"
  • sphinx==2.2.1[dev]
    extra == "dev"
  • sphinx-rtd-theme==0.4.3[dev]
    extra == "dev"
  • twine==3.1.1[dev]
    extra == "dev"
  • types-setuptools>=62.6.0[dev]
    extra == "dev"

Used By

6

Repository details

Forks
74
Issues
3
Last Commit
8 months ago
Contributors
12
Open PRs
2
Archived
No

Data and sources

Tracking Since
September 26, 2026
Data Updated
October 11, 2026
Data Freshness
Fresh
Sources and methodology