Support major only Python environments and enable uv verbose mode on 2 or more -v for tox

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,45 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ""
+labels: bug
+assignees: ""
+---
+
+## Issue
+
+<!-- Describe what's the expected behavior and what you're observing. -->
+
+## Environment
+
+Provide at least:
+
+- OS:
+
+<details open>
+<summary>Output of <code>pip list</code> of the host Python, where <code>tox</code> is installed</summary>
+
+```console
+
+```
+
+</details>
+
+## Output of running tox
+
+<details open>
+<summary>Output of <code>tox -rvv</code></summary>
+
+```console
+
+```
+
+</details>
+
+## Minimal example
+
+<!--  If possible, provide a minimal reproducer for the issue. -->
+
+```console
+
+```

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,10 @@
+# Ref: https://help.github.com/en/github/building-a-strong-community/configuring-issue-templates-for-your-repository#configuring-the-template-chooser
+blank_issues_enabled: true # default
+contact_links:
+  - name: 🤷💻🤦 Discussions
+    url: https://github.com/tox-dev/tox/discussions
+    about: |
+      Ask typical Q&A here. Please note that we cannot give support about Python packaging in general, questions about structuring projects and so on.
+  - name: 📝 PyPA Code of Conduct
+    url: https://www.pypa.io/en/latest/code-of-conduct/
+    about: ❤ Be nice to other members of the community. ☮ Behave.

.github/ISSUE_TEMPLATE/feature-request.md

@@ -0,0 +1,26 @@
+---
+name: Feature request
+about: Suggest an enhancement for this project
+title: ""
+labels: enhancement
+assignees: ""
+---
+
+## What's the problem this feature will solve?
+
+<!-- What are you trying to do, that you are unable to achieve with tox as it currently stands? -->
+
+## Describe the solution you'd like
+
+<!-- Clear and concise description of what you want to happen. -->
+
+<!-- Provide examples of real world use cases that this would enable and how it solves the problem described above. -->
+
+## Alternative Solutions
+
+<!-- Have you tried to workaround the problem using tox or other tools? Or a different approach to solving this issue?
+Please elaborate here. -->
+
+## Additional context
+
+<!-- Add any other context, links, etc. about the feature here. -->

.github/workflows/check.yml

@@ -27,7 +27,7 @@ jobs:
           - "3.8"
         os:
           - ubuntu-latest
-#          - windows-latest # not yet supported
+#          - windows-latest
           - macos-latest
     steps:
       - name: setup python for tox
@@ -50,7 +50,7 @@ jobs:
                file_handler.write(env)
         shell: python
       - name: setup test suite
-        run: tox -vv --notest
+        run: tox -vvv --notest
       - name: run test suite
         run: tox --skip-pkg-install
 

.pre-commit-config.yaml

@@ -23,9 +23,9 @@ repos:
     rev: "1.7.0"
     hooks:
       - id: pyproject-fmt
-        additional_dependencies: ["tox>=4.12.1"]
+        additional_dependencies: ["tox>=4.13"]
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: "v0.2.1"
+    rev: "v0.2.2"
     hooks:
       - id: ruff-format
       - id: ruff

pyproject.toml

@@ -39,7 +39,7 @@ dynamic = [
 ]
 dependencies = [
   "tox<5,>=4.13",
-  "uv<1,>=0.1.2",
+  "uv<1,>=0.1.4",
 ]
 optional-dependencies.test = [
   "covdefaults>=2.3",
@@ -112,4 +112,4 @@ run.plugins = ["covdefaults"]
 python_version = "3.11"
 show_error_codes = true
 strict = true
-overrides = [{ module = ["virtualenv.*"], ignore_missing_imports = true }]
+overrides = [{ module = ["virtualenv.*", "uv.*"], ignore_missing_imports = true }]

src/tox_uv/_installer.py

@@ -3,9 +3,7 @@
 from __future__ import annotations
 
 import logging
-import sys
 from collections import defaultdict
-from pathlib import Path
 from typing import TYPE_CHECKING, Any, Sequence, cast
 
 from packaging.requirements import Requirement
@@ -16,6 +14,7 @@
 from tox.tox_env.python.package import EditableLegacyPackage, EditablePackage, SdistPackage, WheelPackage
 from tox.tox_env.python.pip.pip_install import Pip
 from tox.tox_env.python.pip.req_file import PythonDeps
+from uv.__main__ import find_uv_bin  # noqa: PLC2701
 
 if TYPE_CHECKING:
     from tox.config.main import Config
@@ -33,10 +32,13 @@ def _register_config(self) -> None:
 
     @property
     def uv(self) -> str:
-        return str(Path(sys.executable).parent / "uv")
+        return cast(str, find_uv_bin())
 
     def default_install_command(self, conf: Config, env_name: str | None) -> Command:  # noqa: ARG002
-        return Command([self.uv, "pip", "install", "{opts}", "{packages}"])
+        cmd = [self.uv, "pip", "install", "{opts}", "{packages}"]
+        if self._env.options.verbosity > 2:  # noqa: PLR2004
+            cmd.append("-v")
+        return Command(cmd)
 
     def post_process_install_command(self, cmd: Command) -> Command:
         install_command = cmd.args

src/tox_uv/_venv.py

@@ -11,6 +11,7 @@
 from tox.execute.local_sub_process import LocalSubProcessExecutor
 from tox.execute.request import StdinSource
 from tox.tox_env.python.api import Python, PythonInfo, VersionInfo
+from uv.__main__ import find_uv_bin  # noqa: PLC2701
 from virtualenv.discovery.py_spec import PythonSpec
 
 from ._installer import UvInstaller
@@ -90,7 +91,7 @@ def _get_python(self, base_python: list[str]) -> PythonInfo | None:  # noqa: PLR
 
     @property
     def uv(self) -> str:
-        return str(Path(sys.executable).parent / "uv")
+        return cast(str, find_uv_bin())
 
     @property
     def venv_dir(self) -> Path:
@@ -103,12 +104,15 @@ def environment_variables(self) -> dict[str, str]:
         return env
 
     def create_python_env(self) -> None:
-        base = self.base_python
-        cmd = [self.uv, "venv", "-p", base.version_dot]
+        base = self.base_python.version_info
+        version_spec = f"{base.major}.{base.minor}" if base.minor else f"{base.major}"
+        cmd: list[str] = [self.uv, "venv", "-p", version_spec]
+        if self.options.verbosity > 2:  # noqa: PLR2004
+            cmd.append("-v")
         if self.conf["uv_seed"]:
             cmd.append("--seed")
         cmd.append(str(self.venv_dir))
-        outcome = self.execute(cmd, stdin=StdinSource.OFF, run_id="venv", show=False)
+        outcome = self.execute(cmd, stdin=StdinSource.OFF, run_id="venv", show=None)
         outcome.assert_success()
 
     @property
@@ -134,6 +138,8 @@ def env_site_package_dir(self) -> Path:
         if sys.platform == "win32":  # pragma: win32 cover
             return self.venv_dir / "Lib" / "site-packages"
         # pragma: win32 no cover
+        assert self.base_python.version_info.major is not None  # noqa: S101
+        assert self.base_python.version_info.minor is not None  # noqa: S101
         return self.venv_dir / "lib" / f"python{self.base_python.version_dot}" / "site-packages"
 
 

tests/test_tox_uv_venv.py

@@ -20,6 +20,13 @@ def test_uv_venv_spec(tox_project: ToxProjectCreator) -> None:
     result.assert_success()
 
 
+def test_uv_venv_spec_major_only(tox_project: ToxProjectCreator) -> None:
+    ver = sys.version_info
+    project = tox_project({"tox.ini": f"[testenv]\npackage=skip\nbase_python={ver.major}"})
+    result = project.run("-vv")
+    result.assert_success()
+
+
 def test_uv_venv_na(tox_project: ToxProjectCreator) -> None:
     project = tox_project({"tox.ini": "[testenv]\npackage=skip\nbase_python=1.0"})
     result = project.run("-vv")

tox.ini

@@ -32,7 +32,7 @@ commands =
 description = run static analysis and style check using flake8
 skip_install = true
 deps =
-    pre-commit>=3.6.1
+    pre-commit>=3.6.2
 pass_env =
     HOMEPATH
     PROGRAMDATA