PyRank
construct

construct

Construct: Declarative data structures for python that allow symmetric parsing and building
PyPI GitHub
Downloads
Day
272.5K
Week
1.3M
Month
5.6M
Stars
1.0K
Forks
167
Issues
15
Version
2.10.70

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
40
Popularity
64
Adoption
80
Community
30
How the maintenance status was determined
Last commit
395 days ago
Monthly downloads
5,627,278
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
5,627,278
Stars
1,004
Stars per 1k downloads
0.18
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
190,482
Month daily avg
187,576
Momentum
+1.5%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.6
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
905 days ago
Total releases
76
Releases/year
5.7
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
3
Monthly downloads
5,627,278
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
47
 
Issue Burden
14.9
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
1.8%
contrib / forks
Stale Release
509d
 
PR Velocity
Overwhelmed
 

Weekly Downloads

GitHub Stars

Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 89.5K
Windows 8.0K
macOS 5.3K

Python Versions

3.12
42.7% 38.8K
3.11
24.3% 22.1K
3.13
13.1% 11.9K
3.14
11.7% 10.6K
3.10
8.2% 7.4K

Top Countries

1. US US
61.4K
2. FR FR
8.0K
3. DE DE
6.0K
4. GB GB
5.0K
5. NL NL
2.6K
6. JP JP
2.2K
7. IE IE
1.8K
8. ES ES
1.3K
9. PL PL
1.2K
10. AU AU
950

Package Information

License
MIT
First Release
January 17, 2013
Last Release
2 years ago
Last Commit
1 year ago
Latest Version
2.10.70
Total Releases
76
Contributors
3
Open PRs
19
Archived
No
Author
Arkadiusz Bulski, Tomer Filiba, Corbin Simpson
Python Versions
3 3.6 3.7 3.8 3.9 3.10 3.11
Wheels
py2 py3
Keywords
construct kaitai declarative data structure struct binary symmetric parser builder parsing building pack unpack packer unpacker
Tracking Since
January 6, 2026
Data Updated
May 17, 2026
Data Freshness
Fresh

Links