Add newer python excursions on appveyor

appveyor.yml

@@ -1,28 +1,49 @@
-# miniconda bootstrap from conda-forge recipe
 matrix:
   fast_finish: true
 
+cache:
+  - '%LOCALAPPDATA%\bower\cache\packages -> bower.json'
+
 environment:
+  CONDA_ACTIVATE: "call C:\\Miniconda36-x64\\Scripts\\activate.bat"
+  CONDA_BUILD_DEPS: >-
+    "babel"
+    "nodejs >=6.0"
+    "pip"
+  CONDA_RUN_DEPS: >-
+    "ipykernel"
+    "ipython_genutils"
+    "jinja2"
+    "jupyter_client >=5.3.4"
+    "jupyter_core >=4.6.0"
+    "nbconvert"
+    "nbformat"
+    "prometheus_client"
+    "pyzmq"
+    "send2trash"
+    "terminado >=0.8.1"
+    "tornado"
+    "traitlets >=4.2.1"
+  CONDA_TEST_DEPS: >
+    "nose"
+    "nose-cov"
+    "requests"
+  NOSE_EXCLUDE: selenium
   matrix:
-    - CONDA_PY: 36
-      CONDA_INSTALL_LOCN: "C:\\Miniconda36-x64"
+    - CONDA_PY: ">=3.8,<3.9.0a0"
+    - CONDA_PY: ">=3.7,<3.8.0a0"
+    - CONDA_PY: ">=3.6,<3.7.0a0"
 
 platform:
   - x64
 
 build: off
 
 install:
-  - cmd: call %CONDA_INSTALL_LOCN%\Scripts\activate.bat
-  - cmd: conda config --set show_channel_urls true
-  - cmd: conda config --add channels conda-forge
-  #- cmd: conda update --yes --quiet conda
-  - cmd: conda install -y pyzmq tornado jupyter_client nbformat ipykernel pip nodejs nose
-  # not using `conda install -y` on nbconvent package because there is
-  # currently a bug with the version that the anaconda installs, so we will just install it with pip
-  - cmd: pip install nbconvert
-  - cmd: python setup.py build
-  - cmd: pip install .[test]
+  - cmd: '%CONDA_ACTIVATE% && conda upgrade -y -c conda-forge conda'
+  - cmd: '%CONDA_ACTIVATE% && conda create -y -n notebook-test -c conda-forge -c defaults "python %CONDA_PY%" %CONDA_BUILD_DEPS% %CONDA_RUN_DEPS% %CONDA_TEST_DEPS% || exit 1'
+  - cmd: '%CONDA_ACTIVATE% notebook-test && npm install && python setup.py sdist bdist_wheel || exit 1'
+  - cmd: '%CONDA_ACTIVATE% notebook-test && cd dist && python -m pip install --no-deps --no-index --ignore-installed --find-links=. notebook'
 
 test_script:
-  - nosetests  -v notebook --exclude-dir notebook\tests\selenium
+  - '%CONDA_ACTIVATE% notebook-test && md tst_tmp && cd tst_tmp && nosetests -vv --with-cov --traverse-namespace --cov notebook notebook || exit 1'

notebook/tests/launchnotebook.py

@@ -158,9 +158,9 @@ def start_thread():
                     token=cls.token,
                 )
                 if 'asyncio' in sys.modules:
-                          app._init_asyncio_patch()
-                          import asyncio
-                          asyncio.set_event_loop(asyncio.new_event_loop())
+                    app._init_asyncio_patch()
+                    import asyncio
+                    asyncio.set_event_loop(asyncio.new_event_loop())
                 # don't register signal handler during tests
                 app.init_signal = lambda : None
                 # clear log handlers and propagate to root for nose to capture it