Related issues

Relates to #6203.

Setup

• uv 0.5.11 (Homebrew 2024-12-20)
• Python 3.13
• macOS Sequoia 15.1.1

Observed behavior

When adding a series of dependencies with uv add:

uv add ruff
uv add pytest
uv add pytest-mock
uv add pytest-randomly

this is what I get in my pyproject.toml:

[project]
# ...
dependencies = [
    "pytest-mock>=3.14.0",
    "pytest>=8.3.4",
    "ruff>=0.8.4",
    "pytest-randomly>=3.16.0",
]

The list of dependencies is updated as follows:

1. uv add ruff: ruff is added.
2. uv add pytest: pytest is inserted before ruff.
3. uv add pytest-mock: pytest-mock is inserted before pytest.
4. uv add pytest-randomly: pytest-randomly is appended as the last item.

So, sorting is broken at point 3.

Expected behavior

Since uv should sort the dependencies alphabetically (see #6388), I would rather expect:

[project]
# ...
dependencies = [
    "pytest>=8.3.4",
    "pytest-mock>=3.14.0",
    "pytest-randomly>=3.16.0",
    "ruff>=0.8.4",
]

or, assuming that >= are taken into account in sorting:

[project]
# ...
dependencies = [
    "pytest-mock>=3.14.0",
    "pytest-randomly>=3.16.0",
    "pytest>=8.3.4",
    "ruff>=0.8.4",
]

I believe that the first options seems to be more intuitive. In fact, by "sorting" dependencies I would rather think of sorting dependency names, not its specifiers.