Building a project with dev dependencies does not make those dev dependencies installable.

[boatcoder]

Summary

uv add --dev places packages in the dependency-groups section of pyproject.toml
uv build does not build them into an installable section djadmin[dev]
You have to move/copy them from dependency-groups to [project.optional-dependencies] so that you can get them to install.

This might be as designed or desired but it is definitely puzzling when you try to package things and then they won't install. Hopefully this will help someone else that runs into this.

[project]
name = "djadmin"
version = "0.1.0"
description = "Add your description here"
readme = "README.md"
requires-python = ">=3.12"
dependencies = [
    "django>=5.1.6",
    "django-extensions>=3.2.3",
    "django-hint>=0.3.2",
    "django-nested-admin>=4.1.1",
    "django-stubs-ext>=5.1.3",
    "djantic>=0.7.0",
    "pgvector>=0.3.6",
    "psycopg2-binary>=2.9.10",
]

[project.optional-dependencies]
dev = [
    "model-bakery>=1.20.4",
    "pyyaml>=6.0.2",
    "requests>=2.32.3",
    "django-debug-toolbar>=5.0.1",
]

[dependency-groups]
dev = [
    "responses>=0.25.7",
]

Platform

mac0S 14.2.1

Version

uv 0.6.6

Python version

No response

[zanieb]

This is intentional. dependency-groups and development dependencies are not part of the published project.

https://docs.astral.sh/uv/concepts/projects/dependencies/#development-dependencies

It sounds like you want uv add --optional dev instead.

[zanieb]

Note this is not just a detail of uv, but the intent of the Python standard for development dependency groups https://peps.python.org/pep-0735/