Do virtualenv with conda

.github/workflows/testing.yml

@@ -113,30 +113,29 @@ jobs:
   examples:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
       # SWIG should not be installed so that we can test that lunar lander is
       # installing SWIG properly. See https://github.com/icaros-usc/pyribs/pull/366
       - name: Remove swig
         run: sudo apt-get remove swig
-      - name: Set up Python 3.8
-        uses: actions/setup-python@v4
+      - uses: actions/checkout@v4
+      - uses: conda-incubator/setup-miniconda@v2
         with:
-          python-version: "3.8"
-      - name: Create virtual env
-        run: python -m venv ./venv && source ./venv/bin/activate
+          python-version: 3.8
       - name: Install deps
+        shell: bash -el {0}
         run: pip install .[visualize]
       - name: Test Examples
+        shell: bash -el {0}
         run: bash tests/examples.sh
   tutorials:
     runs-on: ubuntu-latest
     steps:
-      # We use Python 3.10 instead of 3.8 here since Google Colab uses 3.10.
-      - uses: actions/checkout@v4
       # SWIG should not be installed so that we can test that lunar lander is
       # installing SWIG properly. See https://github.com/icaros-usc/pyribs/pull/366
       - name: Remove swig
         run: sudo apt-get remove swig
+      # We use Python 3.10 instead of 3.8 here since Google Colab uses 3.10.
+      - uses: actions/checkout@v4
       - name: Set up Python 3.10
         uses: actions/setup-python@v4
         with: