Install in venv

Author: jonathangreen

.github/workflows/linuxbrew.yml

@@ -18,19 +18,19 @@ jobs:
           brew update
           brew install python@${{ matrix.python }} gcc libxml2 libxmlsec1 pkg-config
           echo "/home/linuxbrew/.linuxbrew/opt/python@${{ matrix.python }}/libexec/bin" >> $GITHUB_PATH
-      - name: Install python dependencies
+      - name: Build wheel
         run: |
+          python3 -m venv build_venv
+          source build_venv/bin/activate
           pip3 install --upgrade setuptools wheel build
-      - name: Build linux_x86_64 wheel
-        run: |
           export CFLAGS="-I$(brew --prefix)/include"
           export LDFLAGS="-L$(brew --prefix)/lib"
           python3 -m build
           rm -rf build/
-      - name: Install test dependencies
+      - name: Run tests
         run: |
+          python3 -m venv test_venv
+          source test_venv/bin/activate
           pip3 install --upgrade -r requirements-test.txt
           pip3 install xmlsec --only-binary=xmlsec --no-index --find-links=dist/
-      - name: Run tests
-        run: |
           pytest -v --color=yes