No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
pytzdata has 20.4M monthly downloads and 19 GitHub stars. Version 2020.1, first published in 2016.
It is showing limited recent maintenance under a permissive license, last released in Jul 2020.
It is used by 15 tracked packages, including dbnd, nsj-rest-test-util and geniusrise.
Package Insights
Package Risks
- High bus factor: only 2 contributor(s) for this download volume
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
40
Popularity
31
Adoption
80
Community
45
Provenance
0
How the maintenance status was determined
Last commit
2184 days ago
Monthly downloads
20,407,454
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
20,407,454
Stars
19
Stars per 1k downloads
0.00
•
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
691,293
Month daily avg
680,248
Momentum
+1.6%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*
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
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
2184 days ago
Total releases
22
Releases/year
2.3
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
2
Monthly downloads
20,407,454
•
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
-
per 1k stars
Discussions
-
per 1k stars
Fork Ratio
10.0%
contrib / forks
Stale Release
No
PR Velocity
Active
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
595.4K
Windows
713
macOS
41
Python Versions
3.7
51.0%
294.6K
3.10
31.3%
181.2K
3.11
10.4%
60.1K
3.9
5.3%
30.8K
3.13
2.0%
11.4K
Top Countries
1.
US
489.1K
US
2.
IE
21.4K
IE
3.
DE
15.6K
DE
4.
CA
15.6K
CA
5.
JP
11.5K
JP
6.
GB
9.5K
GB
7.
AU
7.3K
AU
8.
SG
6.7K
SG
9.
SA
4.4K
SA
10.
IN
4.1K
IN
Dependencies
0
No dependencies
Package Information
License
MIT
First Release
September 29, 2016
Last Release
5 years ago
Last Commit
5 years ago
Latest Version
2020.1
Total Releases
22
Contributors
2
Open PRs
5
Archived
No
Author
Sébastien Eustace
Python Versions
2
2.7
3
3.4
3.5
3.6
3.7
3.8
Wheels
py2
py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh