Revert "Python 2 test fixes"

This reverts commit 76c5038d0f29c2e6d868c359886e2ecb0a25009f.

Author: nikmolnar

.github/workflows/python-tests.yml

@@ -11,19 +11,19 @@ jobs:
 
     strategy:
       matrix:
-        python-version: [2.7, 3.8, 3.9, '3.10', '3.11']
-
-    container:
-      image: python:${{ matrix.python-version }}-slim
+        python-version: [2.7, 3.8, 3.9, 3.10, 3.11]
 
     steps:
       - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
           python -m pip install poetry
-          rm poetry.lock
-          poetry config experimental.new-installer false
           poetry env use system
           poetry install --no-root
       - name: Test with pytest

pyproject.toml

@@ -16,7 +16,7 @@ requests = [
 ]
 restle = "^0.5.0"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
 pytest = [
     { version = "^8.2.1", python = "^3.8" },
     { version = "^4.6.11", python = "~2.7" }