Remove pip and virtualenv usage

Author: staticdev

.github/workflows/constraints.txt

@@ -24,11 +24,6 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: "pip"
 
-      - name: Upgrade pip
-        run: |
-          pip install --constraint=.github/workflows/constraints.txt pip
-          pip --version
-
       - name: Install UV
         uses: astral-sh/setup-uv@v5
 

.github/workflows/integration.yml

@@ -24,11 +24,6 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: "pip"
 
-      - name: Upgrade pip
-        run: |
-          pip install --constraint=.github/workflows/constraints.txt pip
-          pip --version
-
       - name: Install UV
         uses: astral-sh/setup-uv@v5
 

.github/workflows/lint.yml

@@ -25,15 +25,9 @@ jobs:
         with:
           python-version: "3.13"
 
-      - name: Upgrade pip
+      - name: Install UV dependencies
         run: |
-          pip install --constraint=.github/workflows/constraints.txt pip
-          pip --version
-
-      - name: Install Hatch
-        run: |
-          pip install --constraint=.github/workflows/hatch-constraints.txt hatch
-          hatch --version
+          uv sync --all-extras --frozen
 
       - name: Install UV
         uses: astral-sh/setup-uv@v5

.github/workflows/release.yml

@@ -29,11 +29,6 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: "pip"
 
-      - name: Upgrade pip
-        run: |
-          pip install --constraint=.github/workflows/constraints.txt pip
-          pip --version
-
       - name: Install UV
         uses: astral-sh/setup-uv@v5
 

.github/workflows/test.yml

@@ -141,6 +141,11 @@ palette = {scheme = "isort"}
 requires = ["hatchling", "hatch-vcs"]
 build-backend = "hatchling.build"
 
+[dependency-groups]
+dev = [
+    "hatch>=1.14.0",
+]
+
 [tool.mypy]
 python_version = 3.9
 strict = true