Require Python 3.8+ (#302)

.github/workflows/test.yml

@@ -23,14 +23,14 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ["3.7", "3.10"]
+        python-version: ["3.8", "3.11"]
         include:
           - os: windows-latest
             python-version: "3.9"
           - os: ubuntu-latest
             python-version: "pypy-3.8"
           - os: macos-latest
-            python-version: "3.8"
+            python-version: "3.10"
     steps:
       - uses: actions/checkout@v2
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
@@ -54,7 +54,7 @@ jobs:
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
         with:
-          python_version: "3.7"
+          python_version: "3.8"
       - name: Install miniumum versions
         uses: jupyterlab/maintainer-tools/.github/actions/install-minimums@v1
       - name: Run the unit tests

.pre-commit-config.yaml

@@ -37,7 +37,7 @@ repos:
     rev: v3.2.0
     hooks:
       - id: pyupgrade
-        args: [--py37-plus]
+        args: [--py38-plus]
 
   - repo: https://github.com/PyCQA/doc8
     rev: v1.0.0

pyproject.toml

@@ -15,7 +15,7 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3"
 ]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = [
   "platformdirs",
   "traitlets",