Ownership is measured by how many commits each author made to each file in the current tree. It highlights bus-factor risk (files only one person has ever touched) and where knowledge is concentrated. The bus factor is the smallest number of people who are, between them, primary owner of more than half of the files.
Files only one author has ever changed. The more a file has changed, the more knowledge is at risk if that person leaves.
| File | Sole owner | Commits |
|---|---|---|
| doc/build/core/expression_api.rst | Mike Bayer | 39 |
| examples/dogpile_caching/advanced.py | Mike Bayer | 9 |
| doc/build/core/future.rst | Mike Bayer | 8 |
| examples/performance/bulk_inserts.py | Mike Bayer | 8 |
| doc/build/core/inspection.rst | Mike Bayer | 8 |
| test/ext/asyncio/test_session.py | Mike Bayer | 7 |
| .gitreview | Mike Bayer | 7 |
| doc/build/contents.rst | Mike Bayer | 7 |
| test/orm/dml/test_orm_upd_del_assorted.py | Mike Bayer | 5 |
| test/orm/dml/test_evaluator.py | Mike Bayer | 5 |
| File | Sole owner | Commits |
|---|---|---|
| doc/build/core/expression_api.rst | Mike Bayer | 39 |
| examples/dogpile_caching/advanced.py | Mike Bayer | 9 |
| doc/build/core/future.rst | Mike Bayer | 8 |
| examples/performance/bulk_inserts.py | Mike Bayer | 8 |
| doc/build/core/inspection.rst | Mike Bayer | 8 |
| test/ext/asyncio/test_session.py | Mike Bayer | 7 |
| .gitreview | Mike Bayer | 7 |
| doc/build/contents.rst | Mike Bayer | 7 |
| test/orm/dml/test_orm_upd_del_assorted.py | Mike Bayer | 5 |
| test/orm/dml/test_evaluator.py | Mike Bayer | 5 |
| doc/build/orm/extensions/declarative/index.rst | Mike Bayer | 5 |
| doc/build/orm/exceptions.rst | Mike Bayer | 5 |
| lib/sqlalchemy/testing/cancellation.py | Mike Bayer | 4 |
| test/ext/asyncio/test_scoping.py | Mike Bayer | 4 |
| doc/build/orm/extensions/horizontal_shard.rst | Mike Bayer | 4 |
| test/orm/inheritance/test_deprecations.py | Mike Bayer | 4 |
| doc/build/core/visitors.rst | Mike Bayer | 4 |
| doc/build/core/exceptions.rst | Mike Bayer | 4 |
| examples/inheritance/__init__.py | Mike Bayer | 4 |
| test/perf/compiled_extensions/base.py | Federico Caselli | 4 |
| test/perf/compiled_extensions/command.py | Federico Caselli | 4 |
| test/sql/test_tstrings_py314.py | Mike Bayer | 3 |
| lib/sqlalchemy/testing/profiles_file.py | Mike Bayer | 3 |
| test/orm/dml/test_orm_upd_del_inheritance.py | Mike Bayer | 3 |
| doc/build/core/compiler.rst | Mike Bayer | 3 |
| examples/asyncio/greenlet_orm.py | Mike Bayer | 3 |
| doc/build/orm/classical.rst | Mike Bayer | 3 |
| doc/build/orm/relationship_api.rst | Mike Bayer | 3 |
| .github/FUNDING.yml | Mike Bayer | 3 |
| test/orm/declarative/test_concurrency.py | Mike Bayer | 3 |
| doc/build/changelog/unreleased_11/README.txt | Mike Bayer | 3 |
| doc/build/changelog/unreleased_12/README.txt | Mike Bayer | 3 |
| doc/build/changelog/unreleased_13/README.txt | Mike Bayer | 3 |
| doc/build/changelog/unreleased_14/README.txt | Mike Bayer | 3 |
| examples/versioned_rows/__init__.py | Mike Bayer | 3 |
| test/__init__.py | Mike Bayer | 3 |
| test/orm/test_text.py | Mike Bayer | 2 |
| test/dialect/postgresql/test_async_pg.py | Mike Bayer | 2 |
| tools/profiles.py | Mike Bayer | 2 |
| .github/ISSUE_TEMPLATE/config.yml | Mike Bayer | 2 |
| doc/build/orm/declarative_mapping.rst | Mike Bayer | 2 |
| doc/build/changelog/unreleased_13/6392.rst | Mike Bayer | 2 |
| doc/build/changelog/unreleased_13/6182.rst | Mike Bayer | 2 |
| doc/build/core/engines_connections.rst | Mike Bayer | 2 |
| doc/build/core/sqla_engine_arch.png | Mike Bayer | 2 |
| doc/build/orm/extensions/orderinglist.rst | Mike Bayer | 2 |
| doc/build/sqla_arch_small.png | Mike Bayer | 2 |
| test/perf/compiled_extensions/cache_key.py | Federico Caselli | 2 |
| test/typing/plain_files/ext/asyncio/async_stuff.py | Federico Caselli | 2 |
| test/typing/plain_files/orm/scoped_session.py | Federico Caselli | 2 |
| test/base/_concurrency_fixtures.py | Federico Caselli | 2 |
| test/typing/plain_files/orm/mapped_assign_expression.py | Federico Caselli | 2 |
| test/typing/plain_files/ext/hybrid/hybrid_four.py | Federico Caselli | 2 |
| CHANGES.rst | Anatoli Babenia | 2 |
| doc/build/changelog/unreleased_21/13715.rst | Mike Bayer | 1 |
| doc/build/changelog/unreleased_21/13714.rst | Mike Bayer | 1 |
| doc/build/changelog/unreleased_20/13711.rst | Mike Bayer | 1 |
| doc/build/changelog/unreleased_20/13689.rst | Mike Bayer | 1 |
| doc/build/changelog/unreleased_20/13699.rst | Mike Bayer | 1 |
| doc/build/changelog/unreleased_20/13686.rst | Mike Bayer | 1 |
| doc/build/changelog/unreleased_20/13695.rst | Mike Bayer | 1 |
| doc/build/changelog/unreleased_20/13688.rst | Mike Bayer | 1 |
| test/typing/plain_files/orm/unmapped_column.py | Mike Bayer | 1 |
| test/orm/_join_criteria_fixtures.py | Mike Bayer | 1 |
| test/base/test_packaging.py | Mike Bayer | 1 |
| lib/sqlalchemy/dialects/mysql/_mariadb_shim.py | Mike Bayer | 1 |
| test/typing/plain_files/orm/polymorphic.py | Mike Bayer | 1 |
| test/orm/test_tstring_py314.py | Mike Bayer | 1 |
| test/sql/test_table_via_select.py | Mike Bayer | 1 |
| tools/warn_tox.py | Mike Bayer | 1 |
| test/orm/test_dataclasses.py | Mike Bayer | 1 |
| test/dialect/sqlite/__init__.py | Mike Bayer | 1 |
| examples/syntax_extensions/__init__.py | Mike Bayer | 1 |
| examples/syntax_extensions/qualify.py | Mike Bayer | 1 |
| examples/syntax_extensions/test_qualify.py | Mike Bayer | 1 |
| test/orm/test_syntax_extensions.py | Mike Bayer | 1 |
| test/sql/test_syntax_extensions.py | Mike Bayer | 1 |
| doc/build/changelog/unreleased_21/README.txt | Mike Bayer | 1 |
| tools/walk_packages.py | Mike Bayer | 1 |
| doc/build/orm/queryguide/index.rst | Mike Bayer | 1 |
| doc/build/orm/queryguide/query.rst | Mike Bayer | 1 |
| doc/build/orm/queryguide/queryguide_nav_include.rst | Mike Bayer | 1 |
| test/orm/dml/__init__.py | Mike Bayer | 1 |
| test/orm/declarative/__init__.py | Mike Bayer | 1 |
| doc/build/changelog/unreleased_20/README.txt | Mike Bayer | 1 |
| doc/build/changelog/unreleased_13/7115.rst | Mike Bayer | 1 |
| doc/build/tutorial/tutorial_nav_include.rst | Mike Bayer | 1 |
| .github/stale.yml | Mike Bayer | 1 |
| examples/asyncio/__init__.py | Mike Bayer | 1 |
| test/ext/asyncio/__init__.py | Mike Bayer | 1 |
| examples/extending_query/__init__.py | Mike Bayer | 1 |
| doc/build/changelog/README.txt | Mike Bayer | 1 |
| doc/build/orm/space_invaders.jpg | Mike Bayer | 1 |
| test/dialect/oracle/__init__.py | Mike Bayer | 1 |
| doc/build/orm/extensions/automap.rst | Mike Bayer | 1 |
| test/dialect/mssql/__init__.py | Mike Bayer | 1 |
| test/dialect/mysql/__init__.py | Mike Bayer | 1 |
| test/dialect/postgresql/__init__.py | Mike Bayer | 1 |
| test/ext/declarative/__init__.py | Mike Bayer | 1 |
| doc/build/texinputs/Makefile | Mike Bayer | 1 |
Primary owner = the author with the most commits to a file. Solely owned = files only that author has touched.
| Author | Files owned | Solely owned | Files touched |
|---|---|---|---|
| Mike Bayer | 790 | 101 | 851 |
| Federico Caselli | 87 | 24 | 751 |
| Rebecca Chen | 12 | 0 | 41 |
| Yurii Karabas | 7 | 0 | 75 |
| Ville Skyttä | 3 | 0 | 87 |
| Gord Thompson | 1 | 0 | 288 |
| Michael Trier | 1 | 1 | 60 |
| Jason Kirtland | 1 | 1 | 49 |
| luz paz | 1 | 0 | 41 |
| Shamil Abdulaev | 1 | 0 | 38 |
| Denis Laxalde | 1 | 0 | 35 |
| Lysandros Nikolaou | 1 | 0 | 23 |
| abdallah elhdad | 1 | 0 | 20 |
| Greg Jarzab | 1 | 1 | 15 |
| Javid Khan | 1 | 1 | 15 |
| Jack Zhou | 1 | 1 | 13 |
| LucasMalor | 1 | 0 | 10 |
| Mike Fiedler | 1 | 0 | 10 |
| suraj | 1 | 0 | 9 |
| Francisco Del Roio | 1 | 0 | 5 |
| opkna | 1 | 0 | 4 |
| TomasCaruso10 | 1 | 1 | 4 |
| medovi40k | 1 | 0 | 4 |
| Naveen | 1 | 0 | 3 |
| Micah Denbraver | 1 | 1 | 3 |
Files touched by the most people — shared code where changes are most likely to need coordination.
| File | Contributors | Primary owner | Owner share |
|---|---|---|---|
| lib/sqlalchemy/dialects/postgresql/base.py | 111 | Mike Bayer | 58.0% |
| lib/sqlalchemy/dialects/mysql/base.py | 78 | Mike Bayer | 66.0% |
| lib/sqlalchemy/sql/compiler.py | 73 | Mike Bayer | 78.8% |
| lib/sqlalchemy/dialects/sqlite/base.py | 61 | Mike Bayer | 63.5% |
| lib/sqlalchemy/orm/query.py | 53 | Mike Bayer | 83.3% |
| lib/sqlalchemy/dialects/mssql/base.py | 53 | Mike Bayer | 64.5% |
| lib/sqlalchemy/sql/schema.py | 52 | Mike Bayer | 64.2% |
| lib/sqlalchemy/orm/session.py | 51 | Mike Bayer | 80.9% |
| test/requirements.py | 49 | Mike Bayer | 68.9% |
| doc/build/changelog/changelog_11.rst | 47 | Mike Bayer | 79.8% |
| lib/sqlalchemy/sql/selectable.py | 46 | Mike Bayer | 71.6% |
| lib/sqlalchemy/sql/elements.py | 45 | Mike Bayer | 74.4% |
| lib/sqlalchemy/sql/sqltypes.py | 42 | Mike Bayer | 66.2% |
| doc/build/dialects/index.rst | 41 | Mike Bayer | 34.5% |
| test/dialect/postgresql/test_types.py | 40 | Mike Bayer | 60.3% |
| lib/sqlalchemy/orm/mapper.py | 39 | Mike Bayer | 87.9% |
| lib/sqlalchemy/dialects/postgresql/psycopg2.py | 39 | Mike Bayer | 72.4% |
| test/dialect/postgresql/test_compiler.py | 39 | Mike Bayer | 49.4% |
| lib/sqlalchemy/engine/base.py | 37 | Mike Bayer | 82.7% |
| test/sql/test_types.py | 37 | Mike Bayer | 78.2% |
How SQLAlchemy compares with other Python open source projects →
How SQLAlchemy ranks among Python open source projects by AI-assisted commits →
Generate this report for your own repository with gitstats-action · All Gallery reports
Publishes the report to GitHub Pages on every push to main: turn on Pages for the gh-pages branch.
# .github/workflows/gitstats.yml
name: GitStats Report
on:
push:
branches: [main]
permissions:
contents: write
jobs:
gitstats:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v7
with:
fetch-depth: 0
- uses: shenxianpeng/gitstats-action@v1
with:
deploy-to-pages: true