Clean up Travis

.travis.yml

@@ -1,30 +1,12 @@
-group: travis_latest
 language: python
-cache: pip
 python:
-    #- 2.7
-    - 3.6
-    #- nightly
-    #- pypy
-    #- pypy3
-matrix:
-    allow_failures:
-        - python: nightly
-        - python: pypy
-        - python: pypy3
+    - 3.7
 install:
-    #- pip install -r requirements.txt
     - pip install flake8  # pytest  # add another testing frameworks later
     - pip install pipenv
     - pipenv install --dev
-    - python3 ./setup.py install
-before_script:
-    # stop the build if there are Python syntax errors or undefined names
-    - flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics
-    # exit-zero treats all errors as warnings.  The GitHub editor is 127 chars wide
-    - flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
 script:
-    - "./tests/test.sh"   # pytest --capture=sys  # add other tests here
-notifications:
-    on_success: change
-    on_failure: change  # `always` will be the setting once code changes slow down
+    - flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics
+    - flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - "./tests/test.sh"
+    # pytest --capture=sys  # add other tests here