Unable to pdm sync / install an application with uv without a project name / version

[taborsarah]

Describe the bug

When uv is enabled, I am unable to pdm sync or install an applicaction without a project name and version.

To reproduce

Create a new project with a pyproject.toml file w/ no project name or version.

[project]
description = "A demonstration."
authors = [
    {name = "Sarah Tabor", email = "stabe2.st@gmail.com"},
]
dependencies = [
    "pandas>=2.2.3"
]
requires-python = ">=3.11,<3.13"
license = {text = "MIT"}

[[tool.pdm.source]]
url = "https://gitlab.beta.team/api/v4/projects/beta%2Fpypi/packages/pypi/simple"
verify_ssl = true
name = "pypi"

Ensure uv is enabled for the project.
pdm config use_uv true

Try to pdm install

Expected Behavior

I should be able to use pdm for an application with uv enabled

Environment Information

PDM version:
2.22.3
Python Interpreter:
/Users/stabor/Downloads/pdm_uv/.venv/bin/python (3.12)
Project Root:
/Users/stabor/Downloads/pdm_uv
Local Packages:

Usage: pdm info [-h] [-v | -q] [-g] [-p PROJECT_PATH] [--venv [NAME]] [--python | --where | --packages | --env | --json]
pdm info: error: unrecognized arguments: -- env

Verbose Command Output

❯ pdm install -v
WARNING: Lockfile hash doesn't match pyproject.toml, packages may be outdated
Updating the lock file...
WARNING: inherit_metadata strategy is not supported by uv resolver, it will be ignored
INFO: Using uv is experimental and might break due to uv updates.
Running uv lock command: ['/Users/stabor/.local/bin/uv', 'lock', '-p', '/Users/stabor/Downloads/pdm_uv/.venv/bin/python',
'--verbose', '--index-url', 'https://gitlab.beta.team/api/v4/projects/beta%2Fpypi/packages/pypi/simple',
'--index-strategy=unsafe-best-match']
DEBUG uv 0.6.5 (bcbcd0a1e 2025-03-06)
error: Failed to parse: pyproject.toml
Caused by: TOML parse error at line 1, column 1
|
1 | [project]
| ^^^^^^^^^
pyproject.toml is using the [project] table, but the required project.name field is not set
Traceback (most recent call last):
File "/Users/stabor/.local/bin/pdm", line 8, in
sys.exit(main())
File "/Users/stabor/.local/pipx/venvs/pdm/lib/python3.9/site-packages/pdm/core.py", line 392, in main
return core.main(args or sys.argv[1:])
File "/Users/stabor/.local/pipx/venvs/pdm/lib/python3.9/site-packages/pdm/core.py", line 270, in main
raise cast(Exception, err).with_traceback(traceback) from None
File "/Users/stabor/.local/pipx/venvs/pdm/lib/python3.9/site-packages/pdm/core.py", line 265, in main
self.handle(project, options)
File "/Users/stabor/.local/pipx/venvs/pdm/lib/python3.9/site-packages/pdm/core.py", line 195, in handle
command.handle(project, options)
File "/Users/stabor/.local/pipx/venvs/pdm/lib/python3.9/site-packages/pdm/cli/commands/install.py", line 95, in handle
actions.do_lock(
File "/Users/stabor/.local/pipx/venvs/pdm/lib/python3.9/site-packages/pdm/cli/actions.py", line 133, in do_lock
resolved, collected_groups = resolver.resolve()
File "/Users/stabor/.local/pipx/venvs/pdm/lib/python3.9/site-packages/pdm/resolver/uv.py", line 188, in resolve
subprocess.run(uv_lock_command, cwd=self.project.root, check=True)
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/subprocess.py", line 528, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['/Users/stabor/.local/bin/uv', 'lock', '-p', '/Users/stabor/Downloads/pdm_uv/.venv/bin/python', '--verbose', '--index-url', 'https://gitlab.beta.team/api/v4/projects/beta%2Fpypi/packages/pypi/simple', '--index-strategy=unsafe-best-match']' returned non-zero exit status 2.

Additional Context

No response

Are you willing to submit a PR to fix this bug?

• Yes, I would like to submit a PR.

[o-moe]

According to this specification, name is a required key within [project] table.