uv lock --check fails even though uv lock gives no updates #13614
Description
Summary
I hope you can help me with this :)
Running uv lock --check seems to fail even though when I run uv lock there are no updates:
(my-repo) my-device my-repo % uv self version
uv 0.7.3 (3c413f74b 2025-05-07)
(my-repo) my-device my-repo % uv lock --check
Resolved 345 packages in 5.88s
error: The lockfile at `uv.lock` needs to be updated, but `--locked` was provided. To update the lockfile, run `uv lock`.
(my-repo) my-device my-repo % uv lock
Resolved 345 packages in 9.68s
(my-repo) my-device my-repo % uv lock --check
Resolved 345 packages in 5.05s
error: The lockfile at `uv.lock` needs to be updated, but `--locked` was provided. To update the lockfile, run `uv lock`.
The pyproject.toml looks something like this (not shared entirely for confidentiality):
[project]
requires-python = "<4.0,>=3.9"
dependencies = [
"typing-extensions>=4.6.0; python_version < '3.13'",
]
[dependency-groups]
local = [
"typing-extensions==4.9.0",
]
dev = [
"numba==0.55.1; python_version == '3.9'",
"numba==0.56.4; python_version == '3.10'",
"numba==0.57.1; python_version == '3.11'",
"numba; python_version > '3.11'",
"numpy==1.21.5; python_version == '3.9'",
"numpy==1.23.5; python_version == '3.10' or python_version == '3.11'",
"numpy; python_version > '3.11'",
]
lint = [
"pre-commit==4.2.0",
"pre-commit-hooks==5.0.0",
"ruff==0.11.7",
]
This is the uv.toml file:
prerelease = "allow"
python-downloads = "never"
python-preference = "only-system"
link-mode = "symlink"
[[index]]
name = "my-corporate-proxy"
url = "https://my-corporate-proxy.com"
default = true
verify_ssl = true
[pip]
strict = true
verify-hashes = true
no-build-isolation-package = ["numba"]
The venv is created with the following make command (locally, we use uv venv --python 3.10 and on the CI the Python version is selected on the build agent so uv venv is used):
# `export CC` reason: https://stackoverflow.com/questions/79137098/macos-python-3-9-no-module-named-distutils-msvccompiler
.PHONY: install-project
install-project:
@echo "🚀 Creating virtual environment using uv"
@uv self version
@uv venv
@echo "🚀 Installing numba without build isolation"
@make install-root
@export CC=/usr/bin/clang && export CXX=/usr/bin/clang++
@uv pip install setuptools numpy && uv pip install numba
@echo "🚀 Installing project (with all dependencies)"
@uv sync --all-groups --all-extras
@uv run pre-commit install
What I already checked:
- Deleting the lock file and recreating it
- The Github issues. No similar ones come up.
- Look at the docs, e.g. uv lock, Locking and syncing, Troubleshooting build failures, and Locking environments
Platform
Darwin 24.5.0 arm64 (macOS 15.5 Sequoia)
Version
uv 0.7.3 (3c413f7 2025-05-07)
Python version
Python 3.9.22, 3.10.17, 3.11.12 (all on Azure DevOps CI), Python 3.10.5 (Locally)