No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
h5py has 44.2M monthly downloads and 2K GitHub stars. Version 3.16.0 supports Python 3.10+, first published in 2014.
It is actively maintained under a permissive license, last released in Mar 2026.
It is built on top of numpy. It is used by 4,601 tracked packages, including tensorflow, keras and keras-applications.
Package Insights
Package Risks
- No releases in 119 days despite active commits
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
74
Adoption
70
Community
90
Provenance
100
How the maintenance status was determined
Last commit
3 days ago
Monthly downloads
44,156,076
•
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
44,156,076
Stars
2,237
Stars per 1k downloads
0.05
•
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
1,410,517
Month daily avg
1,471,869
Momentum
-4.2%
((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
BSD-3-Clause
•
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
122 days ago
Total releases
37
Releases/year
3.0
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
209
Monthly downloads
44,156,076
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
80
Issue Burden
132.8
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
37.3%
contrib / forks
Stale Release
119d
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
892.4K
Windows
27.6K
macOS
16.3K
Python Versions
3.11
30.9%
264.5K
3.10
29.5%
252.3K
3.12
22.8%
195.3K
3.13
12.4%
106.4K
3.7
4.4%
37.5K
Top Countries
1.
US
1.0M
US
2.
DK
84.5K
DK
3.
GB
37.3K
GB
4.
DE
30.3K
DE
5.
CA
29.8K
CA
6.
NL
23.7K
NL
7.
SG
18.0K
SG
8.
IN
16.9K
IN
9.
SE
16.2K
SE
10.
JP
15.6K
JP
Dependencies
1
- numpy >=1.21.2
Used By
4601
- tensorflow
- keras
- keras-applications
- tensorflow-cpu
- anndata
- onnx2tf
- pvlib
- scanpy
- geoh5py
- phonopy
- hdf5plugin
- nequix
- tf-nightly
- pyscf
- python-doctr
- hdmf
- attoworld
- tensorflow-intel
- pynwb
- tensorflow-cpu-aws
- tensorflow-aarch64
- mudata
- openfermion
- tidy3d
- tianshou
- xradar
- nucleobench
- scikit-bio
- dpdata
- biom-format
- pypots
- benchpots
- pymatreader
- laion-clap
- xtgeo
- mace-torch
- h5grove
- fabio
- qcodes
- policyengine-core
- qai-hub
- hdf5storage
- allennlp-pvt-nightly
- dipy
- silx
- bec-lib
- hickle
- mat-io
- rapid-pe
- bec-server
Package Information
License
BSD-3-Clause
First Release
February 1, 2014
Last Release
4 months ago
Last Commit
4 days ago
Latest Version
3.16.0
Total Releases
37
Contributors
209
Open PRs
48
Archived
No
Python Versions
3
3.10
3.11
3.12
3.13
3.14
Wheels
cp27
cp310
cp311
cp312
cp313
cp314
cp34
cp35
cp36
cp37
cp38
cp39
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh