Fix WSL workflow setup and Python configuration

.github/workflows/py-unit-tests-wsl.yml

@@ -26,26 +26,34 @@ jobs:
         with:
           distribution: Ubuntu-22.04
           update: true
-      - name: Install poetry via pipx in WSL
-        shell: wsl-bash {0}
-        run: |
-          curl -sSL https://install.python-poetry.org | python3 -
-          echo "$HOME/.local/bin" >> $GITHUB_PATH
-      - name: Set up Python in WSL
+      - name: Set up Python and Poetry in WSL
         shell: wsl-bash {0}
         run: |
           sudo apt-get update
-          sudo apt-get install -y python${{ matrix.python-version }}
+          sudo apt-get install -y software-properties-common
+          sudo add-apt-repository -y ppa:deadsnakes/ppa
+          sudo apt-get update
+          sudo apt-get install -y python${{ matrix.python-version }} python${{ matrix.python-version }}-venv python3-pip
+          python${{ matrix.python-version }} -m pip install --user pipx
+          python${{ matrix.python-version }} -m pipx ensurepath
+          export PATH="$HOME/.local/bin:$PATH"
+          pipx install poetry
       - name: Install Python dependencies using Poetry
         shell: wsl-bash {0}
         run: |
+          export PATH="$HOME/.local/bin:$PATH"
+          poetry env use python${{ matrix.python-version }}
           poetry install --without evaluation,llama-index
       - name: Build Environment
         shell: wsl-bash {0}
-        run: make build
+        run: |
+          export PATH="$HOME/.local/bin:$PATH"
+          make build
       - name: Run Tests
         shell: wsl-bash {0}
-        run: poetry run pytest --forked --cov=openhands --cov-report=xml -svv ./tests/unit --ignore=tests/unit/test_memory.py
+        run: |
+          export PATH="$HOME/.local/bin:$PATH"
+          poetry run pytest --forked --cov=openhands --cov-report=xml -svv ./tests/unit --ignore=tests/unit/test_memory.py
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v4
         env: