Public record
Software health reportschema 0.31.0 · metrics 2.10.0 · 2026-08-16 21:05 UTC

vacanza / holidays

Open World Holidays Framework

PythonMIT★ 1,917 stars⑂ 709 forkssince Aug 2014View on GitHub ↗
KindLibraryCommand-line toolhow this is determined
#python#holiday#calendar#holiday-api#holiday-calculation#hacktoberfest

vacanza/holidays holds a health index of 98 out of 100, placing it in the Exceptional band. It scores highest on Vitality (99/100) and lowest on Security (72/100). It was last updated 2 days ago. 3 contributors account for most of its recent work.

98
overall / 100
Exceptional

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

98
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 87 is calibrated to 98 on the published index scale (record calibration 2026-08-02).

Ownership

Open World Holidays FrameworkOrganization
32 followers5 public repossince Apr 2023

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
PyPIholidays0.10230,592,78913313 days agocalendarholidaysl10nvacationworldwide

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

99Exceptional · 21% of overall

Development activity

100Exceptional
How it's scored
36/36Push recency — last push 2 days ago
36/36Commit cadence — 52/52 weeks with commits
18/18Commit volume — 751 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 18 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year751
human_commit_share0.63
days_since_last_push2
active_weeks_last_year52

Release discipline

98Exceptional
How it's scored
27/27Ships releases — 100 releases published
36/36Release recency — latest release 13 days ago
27/27Release cadence — a release every ~15.6 days
8/10OpenSSF Scorecard: Signed-Releases — 5 out of the last 5 releases have a total of 5 signed artifacts.
Inputs used
releases_count100
latest_release_tagv0.102
releases_from_tagsno
days_since_latest_release13
mean_days_between_releases15.6

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

91Excellent · 17% of overall

Popularity & adoption

84Excellent
How it's scored
53.2/60Stars — 1,917 stars
23.8/25Forks — 709 forks
7.4/15Watchers — 22 watchers
Inputs used
forks709
stars1,917
watchers22
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

92Excellent
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
18/18CONTRIBUTING guide
13.5/13.5Code of conduct
0/7.2Issue template
6.3/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges17
has_contributingyes
has_issue_templateno
has_code_of_conductyes
readme_badge_servicesshields.io
has_pull_request_templateyes

Ecosystem adoption (downloads)

100Exceptional
How it's scored
80/80Monthly downloads — 30,592,789 downloads/month across pypi
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagesholidays
dependents—
ecosystemspypi
total_downloads—
monthly_downloads30,592,789
unverified_packages_excluded—
Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

80Excellent · 23% of overall

Maintainer resilience (bus factor)

76Good
How it's scored
36/54Bus factor — 3 contributor(s) cover half of all commits
17/22.5Commit distribution — top contributor authored 25% of commits
13.5/13.5Contributor breadth — 98 contributors
10/10OpenSSF Scorecard: Contributors — project has 34 contributing companies or organizations
Inputs used
bus_factor3
contributors_sampled98
top_contributor_share0.246

Issue & PR responsiveness

81Excellent
How it's scored
38.6/42Issue resolution — 92% of issues closed
26.1/30PR acceptance — 2,525/2,900 decided PRs merged
10.1/13Newcomer PR acceptance — 7/9 first-time contributors' PRs merged in 30d
6/15OpenSSF Scorecard: Code-Review — Found 9/19 approved changesets -- score normalized to 4
Inputs used
merged_prs2,525
open_issues66
closed_issues757
prs_merged_7d2
prs_decided_7d4
prs_merged_30d31
prs_decided_30d36
issue_closed_ratio0.92
closed_unmerged_prs375
first_time_authors_30d6
first_time_prs_merged_30d7
first_time_prs_decided_30d9

Ownership & stewardship

66Good
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain — verified-domain status not read for this organization
10.9/25Owner reach — 32 followers of vacanza
12.3/25Track record — 5 public repos, account ~3 yr old
Inputs used
followers32
owner_typeOrganization
is_verified—
owner_loginvacanza
public_repos5
account_age_days1,207
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on pypi
35/35Publish recency — latest publish 13 days ago
20/20Version history — 133 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesholidays
ecosystemspypi
any_deprecatedno
min_days_since_publish13

Engineering Quality

Are baseline engineering and documentation practices in place?

96Exceptional · 19% of overall

Engineering practices

94Exceptional
How it's scored
24/24CI workflows — 12 workflow(s)
24/24Tests present
16/16Linter config
9.6/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 19 out of 19 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configyes

Documentation

100Exceptional
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage site — https://pypi.org/project/holidays
10/10Repository description
10/10Topics — 6 topics
10/10Wiki
Inputs used
topicspython, holiday, calendar, holiday-api, holiday-calculation, hacktoberfest
has_wikiyes
homepagehttps://pypi.org/project/holidays
docs_sitehttps://pypi.org/project/holidays
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

72Good · 16% of overall

Security posture

65Good
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
1.5/7.5Branch-Protection — branch protection is not maximal on development and all release branches
2.5/2.5CI-Tests — 19 out of 19 merged PRs checked by a CI test -- score normalized to 10
0.5/2.5CII-Best-Practices — badge detected: InProgress
3/7.5Code-Review — Found 9/19 approved changesets -- score normalized to 4
2.5/2.5Contributors — project has 34 contributing companies or organizations
0/10Dangerous-Workflow — dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 18 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
5/5Pinned-Dependencies — all dependencies are pinned
5/5SAST — SAST tool is run on all commits
5/5Security-Policy — security policy file detected
6/7.5Signed-Releases — 5 out of the last 5 releases have a total of 5 signed artifacts.
6.8/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities — 10 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated18
scorecard_versionv5.5.0
checks_inconclusive0
scorecard_aggregate6.5

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
25/25Indirect dependencies free of known advisories — no indirect dependency carries a known advisory
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories0
affected_packages0
assessed_packages2
unassessed_packages0
affected_by_severitynone
direct_affected_packages0
Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the pypi:holidays@0.102 runtime dependency closure — what installing the published package pulls in — 2 packages. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

75Good · 4% of overall

Agent context & guidance

40Weak
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 49 of 63 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.778
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

98Exceptional
How it's scored
18/18One-command bootstrap — Makefile
22/22Automated tests
11/11Lint / format config
11/11Static type checking — holidays/py.typed
10/10Reproducible environment — lockfile
8/10Demonstrated agent practice — 4 of the last 100 commits agent-authored or agent-credited
8/8Automated maintenance — 22 of the last 100 commits are automated dependency updates
10/10OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned
Inputs used
has_nixno
has_testsyes
lockfilesuv.lock
has_dockerfileno
typed_languageno
bootstrap_filesMakefile
has_devcontainerno
has_linter_configyes
typecheck_configsholidays/py.typed
agent_commit_share0.04
toolchain_manifests—
dependency_bot_commit_share0.22

Code legibility for models

81Excellent
How it's scored
27/45Type-checkable code — Python with type-check config (holidays/py.typed)
54.2/55Manageable file sizes — 10/658 source files over 60KB
Inputs used
primary_languagePython
largest_source_bytes233,103
source_files_sampled658
oversized_source_files10

Key facts

1,917GitHub stars
98contributors
751commits, last 12 months
2days since last push
100releases
3bus factor
66open issues
PyPIpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • First-time contributor figures cover 12 of 13 authors (cap 12)

More detail

Star and fork history 0 ★ / 709 ⇿
0Stars
709Forks
100Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

0125250375500625750702362014-112020-102026-08
Major 0Minor 0Patch 2

Each point covers 11 days.

OpenSSF Scorecard 6.5 / 10
6.5aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-08-16 21:04 UTC

10Binary-Artifactsno binaries found in the repo
2Branch-Protectionbranch protection is not maximal on development and all release branches
10CI-Tests19 out of 19 merged PRs checked by a CI test -- score normalized to 10
2CII-Best-Practicesbadge detected: InProgress
4Code-ReviewFound 9/19 approved changesets -- score normalized to 4
10Contributorsproject has 34 contributing companies or organizations
0Dangerous-Workflowdangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 18 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
10Pinned-Dependenciesall dependencies are pinned
10SASTSAST tool is run on all commits
10Security-Policysecurity policy file detected
8Signed-Releases5 out of the last 5 releases have a total of 5 signed artifacts.
9Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities10 existing vulnerabilities detected
Direct dependencies 1
RegistryPackageVersion constraintManifest
PyPIpython-dateutil>=2.9.0.post0,<3pyproject.toml
All dependencies 102

Full resolved dependency set from the GitHub dependency graph: 1 direct and 101 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
PyPIpython-dateutil2.9.0.post0direct
PyPIarrow1.4.0indirect
PyPIattrs26.1.0indirect
PyPIbabel2.18.0indirect
PyPIboolean-py5.0indirect
PyPIcertifi2026.6.17indirect
PyPIcffi2.0.0indirect
PyPIcfgv3.5.0indirect
PyPIchardet5.2.0indirect
PyPIcharset-normalizer3.4.7indirect
PyPIclick8.4.2indirect
PyPIcolorama0.4.6indirect
PyPIcoverage7.15.2indirect
PyPIcryptography50.0.0indirect
PyPIcyclonedx-bom7.3.1indirect
PyPIcyclonedx-python-lib11.11.0indirect
PyPIdefusedxml0.7.1indirect
PyPIdistlib0.4.3indirect
PyPIexceptiongroup1.3.1indirect
PyPIexecnet2.1.2indirect
PyPIfilelock3.29.4indirect
PyPIfqdn1.5.1indirect
PyPIghp-import2.1.0indirect
PyPIgitdb4.0.12indirect
PyPIgitpython3.1.54indirect
PyPIgriffelib2.1.0indirect
PyPIhijridate2.6.0indirect
PyPIidentify2.6.19indirect
PyPIidna3.18indirect
PyPIiniconfig2.3.0indirect
PyPIisoduration20.11.0indirect
PyPIjinja23.1.6indirect
PyPIjsonpointer3.1.1indirect
PyPIjsonschema4.26.0indirect
PyPIjsonschema-specifications2025.9.1indirect
PyPIlark1.3.1indirect
PyPIlicense-expression30.4.4indirect
PyPIlingva5.0.6indirect
PyPIlxml6.1.1indirect
PyPImarkdown3.10.2indirect
PyPImarkdown-include0.8.1indirect
PyPImarkupsafe3.0.3indirect
PyPImergedeep1.3.4indirect
PyPImkdocs1.6.1indirect
PyPImkdocs-autorefs1.4.4indirect
PyPImkdocs-gen-files0.6.1indirect
PyPImkdocs-get-deps0.2.2indirect
PyPImkdocs-literate-nav0.6.3indirect
PyPImkdocstrings1.0.4indirect
PyPImkdocstrings-python2.0.5indirect
PyPInodeenv1.10.0indirect
PyPInumpy2.2.6indirect
PyPInumpy2.4.6indirect
PyPInumpy2.5.0indirect
PyPIpackageurl-python0.17.6indirect
PyPIpackaging26.2indirect
PyPIpathspec1.1.1indirect
PyPIpdfminer-six20260107indirect
PyPIpdfplumber0.11.10indirect
PyPIpillow12.3.0indirect
PyPIpip-requirements-parser32.0.1indirect
PyPIplatformdirs4.10.0indirect
PyPIpluggy1.6.0indirect
PyPIpolib1.2.0indirect
PyPIpre-commit4.6.1indirect
PyPIpre-commit-uv4.3.0indirect
PyPIproperdocs1.6.7indirect
PyPIproperdocs-theme-readthedocs1.6.5indirect
PyPIpy-serializable2.1.0indirect
PyPIpycparser3.0indirect
PyPIpygithub2.9.1indirect
PyPIpygments2.20.0indirect
PyPIpyjwt2.13.0indirect
PyPIpymdown-extensions11.0.1indirect
PyPIpynacl1.6.2indirect
PyPIpyparsing3.3.2indirect
PyPIpypdfium25.10.1indirect
PyPIpytest9.1.1indirect
PyPIpytest-cov7.1.0indirect
PyPIpytest-xdist3.8.0indirect
PyPIpython-discovery1.4.2indirect
PyPIpyyaml6.0.3indirect
PyPIpyyaml-env-tag1.1indirect
PyPIreferencing0.37.0indirect
PyPIrequests2.34.2indirect
PyPIrfc3339-validator0.1.4indirect
PyPIrfc3986-validator0.1.1indirect
PyPIrfc3987-syntax1.1.0indirect
PyPIrpds-py0.30.0indirect
PyPIrpds-py2026.6.3indirect
PyPIsix1.17.0indirect
PyPIsmmap5.0.3indirect
PyPIsortedcontainers2.4.0indirect
PyPItomli2.4.1indirect
PyPItyping-extensions4.15.0indirect
PyPItzdata2026.3indirect
PyPIuri-template1.3.0indirect
PyPIurllib32.7.0indirect
PyPIuv0.11.31indirect
PyPIvirtualenv21.5.1indirect
PyPIwatchdog6.0.0indirect
PyPIwebcolors25.10.0indirect
Dependency advisories 0

Installing pypi:holidays@0.102 pulls in 2 packages, direct and transitive: 0 carry known advisories, of which 0 are direct dependencies.

No known advisories affect the assessed dependencies.

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

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Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.31.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — PyPI.