python -m codecov -> codecov

.travis.yml

@@ -103,9 +103,9 @@ install:
   - echo $TRAVIS_OS_NAME
   - pip install ".[test]"
   # - if [ "$TRAVIS_PYTHON_VERSION" == "2.7" ] && ["$TRAVIS_OS_NAME" == "linux"]; then pip install coverage pytest-cov .; else pip install ".[test]"; fi
-script: pytest  # python -m pytest
+script: pytest
 after_success:
-  - python -m codecov  # submit coverage to codecov.io
+  - codecov  # submit coverage to codecov.io
 # deploy:
 #   provider: pypi
 #   user: shaypal5