PyRank
jnwatson

lmdb

Universal Python binding for the LMDB 'Lightning' Database
PyPI GitHub Verified repo
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

lmdb has 4.4M monthly downloads and 743 GitHub stars. Version 2.2.1 supports Python 3.9+, first published in 2013.

It is actively maintained, last released in Jun 2026.

It is used by 242 tracked packages, including angr, ase-db-backends and pyiqa.

Shared Repository
This package shares its GitHub repository (jnwatson/py-lmdb) with 1 other package. Stars, forks, and other GitHub metrics reflect the entire repository.
Downloads
Day
127.1K
Week
932.0K
Month
4.4M
Stars
743
Forks
122
Issues
2
Version
2.2.1

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
61
Adoption
70
Community
50
Provenance
100
How the maintenance status was determined
Last commit
27 days ago
Monthly downloads
4,397,080
• 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
4,397,080
Stars
743
Stars per 1k downloads
0.17
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
133,144
Month daily avg
146,569
Momentum
-9.2%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python 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
OLDAP-2.8
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
32 days ago
Total releases
62
Releases/year
4.7
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
38
Monthly downloads
4,397,080
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
50
 
Issue Burden
2.7
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
31.1%
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 65.2K
Windows 4.9K
macOS 2.0K

Python Versions

3.12
44.3% 29.3K
3.11
25.6% 16.9K
3.10
15.0% 9.9K
3.14
8.3% 5.5K
3.13
6.8% 4.5K

Top Countries

1. US US
59.5K
2. SG SG
3.2K
3. CN CN
1.8K
4. IN IN
1.4K
5. DK DK
1.3K
6. RU RU
1.0K
7. KR KR
950
8. DE DE
904
9. JP JP
792
10. CA CA
728

Package Information

License
OLDAP-2.8
First Release
April 2, 2013
Last Release
1 month ago
Last Commit
4 weeks ago
Latest Version
2.2.1
Total Releases
62
Contributors
38
Open PRs
1
Archived
No
Author
David Wilson
Python Versions
3 3.9 3.10 3.11 3.12 3.13 3.14
Wheels
cp26 cp27 cp310 cp311 cp312 cp313 cp314 cp37 cp38 cp39 pp36
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links