By the numbers

Data collected on 2026-04-30 from commit 8726605e2d on the main branch.

Size

Django is large but homogeneous: almost all of it is Python. Templates and static assets in django/contrib/admin/ and the GIS contrib app account for most of the non-Python lines. The repository also ships its full test suite, which is roughly twice the size of the framework itself.

xychart-beta horizontal
    title "Python lines of code"
    x-axis ["django/", "tests/", "docs/"]
    y-axis "lines" 0 --> 360000
    bar [165988, 347961, 0]

Area	Files	Lines
django/ (framework source)	902 .py	~166,000
tests/	1,986 .py	~348,000
docs/	726 files	reST prose
Total commits in history	34,528	—

The test suite is more than 2x the size of the framework itself — a deliberate property of Django's "fix the test first" culture. Every Trac-numbered fix lands with a regression test, and changes to public API are gated on test coverage.

Largest source files

These are the heavyweights inside django/. They are the modules where the framework's complexity concentrates: query construction, schema editing, the admin's ModelAdmin, and the model base class.

Lines	File	Why it's big
3,024	django/db/models/query.py	QuerySet, RawQuerySet, prefetch_related, async dispatch
2,972	django/db/models/fields/__init__.py	All field classes (CharField, IntegerField, …) and field machinery
2,892	django/db/models/sql/query.py	The internal Query object: joins, filters, annotations
2,639	django/contrib/admin/options.py	ModelAdmin, the heart of the admin
2,566	django/db/models/base.py	Model, __init_subclass__ plumbing, save/delete logic
2,266	django/db/models/sql/compiler.py	SQL generation from Query objects
2,235	django/db/models/expressions.py	F, Func, Window, Value, Case/When
2,159	django/db/models/fields/related.py	ForeignKey, OneToOneField, ManyToManyField
2,086	django/db/backends/base/schema.py	BaseDatabaseSchemaEditor (DDL emission)
2,066	django/db/migrations/autodetector.py	The migration generator

If you're new to the codebase, do not start with these files. Pages under systems/ point to smaller, more focused entry points.

Activity

The codebase has been releasing on roughly the same cadence — a feature release every eight months, an LTS every two years — for a decade. Recent commit volume is steady at ~75 commits per month.

Year	Commits
2005	1,277
2010	1,926
2014	2,792
2018	1,154
2022	961
2024	936
2025	945
2026	320 (through April)

Commit count has stabilised since 2018: the framework is mature and most changes are bug fixes, deprecation cycles, or new ORM/admin capabilities rather than reorganisations.

Active contributors (last year)

Top contributors by commit count over the trailing 12 months:

Commits	Contributor
169	Jacob Walls
85	Natalia
67	Mariusz Felisiak
43	Tim Graham
42	Clifford Gama
38	Adam Johnson
35	Mike Edmunds
31	Simon Charette
31	David Smith
25	Sarah Boyce

Roughly 90 unique contributors landed code in the last 90 days. The full AUTHORS file lists 1,153 lines of names — Django's contributor base spans two decades.

Bot-attributed commits

Trace of Co-authored-by: ...[bot] trailers in commit messages: 3 commits out of 34,528 (~0.009%). Django does very little automated work in-tree; the workflow is human-driven (Trac → patch → review → merge).

This is a lower bound on AI-assisted work: inline tools like Copilot leave no trace in git history. What it does say is that bots are not committing en masse — Dependabot is not enabled at the repo level and the maintainer team manually curates the dependency set declared in pyproject.toml.

Complexity hotspots

Beyond the largest files (table above), a few directories are dense in branching logic:

• django/db/models/sql/ — the compiler, query, and where modules together account for ~7,500 lines of pure SQL construction. They are the highest-cyclomatic-complexity area in the framework.
• django/db/migrations/autodetector.py — a single 2,066-line file dedicated to deducing migration operations from model state diffs. Changing it usually requires running the entire migrations test app.
• django/contrib/admin/options.py — ModelAdmin exposes a very large surface area; touching it requires running both tests/admin_views/ and tests/modeladmin/.

Test-to-code ratio

Metric	Value
Source lines (django/)	~166k
Test lines (tests/)	~348k
Ratio	~2.1 : 1

Most subsystems have a dedicated test app under tests/ (e.g., tests/queries/, tests/migrations/, tests/admin_views/, tests/forms_tests/, tests/template_tests/). When in doubt, the test app is usually the most readable spec for a feature.

Releases

The latest tags on the repo at the time of writing:

Tag	Notes
6.0.4	Latest 6.0 patch release
5.2.13	Latest 5.2 patch release
4.2.30	Latest 4.2 LTS release
stable/4.2.x	Long-term-support branch

See docs/releases/ for the full chronological release notes.