chore: Use uv for python dependency management

.github/renovate.json5

@@ -0,0 +1,45 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended",
+    ":disableRateLimiting",
+    ":noUnscheduledUpdates",
+    ":semanticCommits"
+  ],
+  "automerge": true,
+  "automergeStrategy": "squash",
+  "automergeType": "pr",
+  "platformAutomerge": true,
+  "schedule": ["after 1am and before 3am every monday"],
+  "lockFileMaintenance": {
+    "enabled": true,
+    "schedule": ["after 1am and before 3am every wednesday"]
+  },
+  "timezone": "Etc/UTC",
+  "enabledManagers": ["pep621", "github-actions", "terraform"],
+  "packageRules": [
+    // Later rules override earlier rules
+    {
+      "matchBaseBranches": ["main", "v*"],
+      "matchManagers": ["pep621"],
+      "rangeStrategy": "bump",
+      "groupName": "Python dependencies"
+    },
+    {
+      // Bumping "pytest-asyncio" over 0.23 breaks the integration tests
+      "matchPackageNames": ["pytest-asyncio"],
+      "matchUpdateTypes": ["minor"],
+      "enabled": false
+    },
+    {
+      "matchBaseBranches": ["main", "v*"],
+      "matchManagers": ["github-actions"],
+      "groupName": "GitHub actions"
+    },
+    {
+      "matchBaseBranches": ["main", "v*"],
+      "matchManagers": ["terraform"],
+      "groupName": "Terraform"
+    },
+  ],
+}

.gitignore

@@ -5,7 +5,9 @@
 
 # Python
 **/venv/**
+**/.venv/**
 *.pyc
+*.egg-info/
 
 # Charmcraft
 *.charm

CONTRIBUTING.md

@@ -2,17 +2,29 @@
 
 To make contributions to this project, you'll need a working [Juju development setup](https://juju.is/docs/sdk/dev-setup).
 
-You can use the environments created by `tox` for development:
+This project uses `uv`. You can install it on Ubuntu with:
 
 ```shell
-tox --notest -e integration
-source .tox/integration/bin/activate
+sudo snap install --classic astral-uv
+```
+
+You can create an environment for development with `uv`:
+
+```shell
+uv sync
+source .venv/bin/activate
 ```
 
 ## Testing
+This project uses `tox` for managing test environments. It can be installed
+with:
+
+```shell
+uv tool install tox --with tox-uv
+```
 
-This project uses `tox` for managing test environments. There are some pre-configured environments
-that can be used for linting and formatting code when you're preparing contributions to the project:
+There are some pre-configured environments
+that can be used for linting and formatting code when you're preparing contributions to the charm:
 
 ```shell
 tox -e fmt           # Format code

pyproject.toml

@@ -1,3 +1,18 @@
+[project]
+name = "sdcore-tests"
+version = "0.1.0"
+requires-python = ">=3.10"
+
+dependencies = [
+    "codespell",
+    "jinja2",
+    "juju",
+    "pyright",
+    "pytest",
+    "pytest-operator",
+    "ruff",
+]
+
 # Testing tools configuration
 [tool.coverage.run]
 branch = true

tox.ini

@@ -16,7 +16,7 @@ setenv =
   PYTHONBREAKPOINT=pdb.set_trace
   PY_COLORS=1
 deps =
-    -r{toxinidir}/requirements.txt
+    .
 passenv =
   PYTHONPATH
   MODEL_SETTINGS