more ci and pytest cleanup

Author: blink1073

.github/workflows/main.yml

@@ -122,6 +122,7 @@ jobs:
       - name: Install miniumum versions
         uses: jupyterlab/maintainer-tools/.github/actions/install-minimums@v1
       - name: Run the unit tests
+        env: PYTHONWARNINGS=default
         run: pytest -vv jupyter_client || pytest -vv jupyter_client --lf
 
   test_prereleases:
@@ -150,36 +151,14 @@ jobs:
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@v2
-      - name: Base Setup
-        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
-      - name: Build SDist
-        run: |
-          pip install build
-          python -m build --sdist
-      - uses: actions/upload-artifact@v2
-        with:
-          name: "sdist"
-          path: dist/*.tar.gz
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - uses: jupyterlab/maintainer-tools/.github/actions/make-sdist@v1
 
   test_sdist:
     runs-on: ubuntu-latest
     needs: [make_sdist]
     name: Install from SDist and Test
     timeout-minutes: 20
     steps:
-      - name: Base Setup
-        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
-      - name: Download sdist
-        uses: actions/download-artifact@v2
-      - name: Install From SDist
-        run: |
-          set -ex
-          cd sdist
-          mkdir test
-          tar --strip-components=1 -zxvf *.tar.gz -C ./test
-          cd test
-          pip install .[test]
-      - name: Run Test
-        run: |
-          cd sdist/test
-          pytest -vv || pytest -vv --lf
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - uses: jupyterlab/maintainer-tools/.github/actions/test-sdist@v1

pyproject.toml

@@ -49,15 +49,9 @@ filterwarnings= [
   # (To be fixed in Tornado 6.2)
   "ignore:There is no current event loop:DeprecationWarning:tornado",
 
-  # Workaround for distutils.Version used in ipykernel
-  "ignore:The distutils package is deprecated and slated for removal:DeprecationWarning:ipykernel",
-
   # ZMQ uses Future internally, which raises a DeprecationWarning
   # When there is no loop running.
   # We could eventually find a way to make sure these are only created
   # when there is a running event loop.
   "ignore:There is no current event loop:DeprecationWarning:zmq",
-
-  # Workaround for imp used in ipykernel
-  "ignore:the imp module is deprecated in favour of importlib:DeprecationWarning"
 ]

setup.cfg

@@ -1,9 +1,6 @@
 [flake8]
 max-line-length = 100
 
-[nosetests]
-warningfilters=default
-
 [metadata]
 name = jupyter_client
 version = attr: jupyter_client._version.__version__