Replace nox-automation with nox (#653)

upgrade to the latest nox
rename nox.py to noxfile.py
make noxfile.py explicit

Author: reyang

.circleci/config.yml

@@ -40,7 +40,8 @@ jobs:
       - run:
           name: Run tests - opencensus
           command: |
-            nox -f nox.py
+            pip install --upgrade nox
+            nox -f noxfile.py
       - deploy:
           name: Push to PyPI (if this is a release tag).
           command: scripts/twine_upload.sh

.travis.yml

@@ -3,10 +3,10 @@ python:
   - '3.6'
 
 install:
-  - pip install nox-automation==0.19.1
+  - pip install --upgrade nox
 
 script:
-  - nox -f nox.py -s docs
+  - nox -f noxfile.py -s docs
   - touch docs/.nojekyll
 
 branches:

CONTRIBUTING.md

@@ -37,7 +37,7 @@ $ git remote add fork https://github.com/YOUR_GITHUB_USERNAME/opencensus-python.
 Run tests:
 
 ```sh
-$ pip install nox-automation  # Only first time.
+$ pip install nox  # Only first time.
 $ nox
 ```
 

nox.py noxfile.pynox.py renamed to noxfile.py

@@ -54,14 +54,10 @@ def _install_test_dependencies(session):
     session.install('unittest2')
 
 
-@nox.session
-@nox.parametrize('py', ['2.7', '3.4', '3.5', '3.6'])
-def unit(session, py):
+@nox.session(python=['2.7', '3.4', '3.5', '3.6'])
+def unit(session):
     """Run the unit test suite."""
 
-    # Run unit tests against all supported versions of Python.
-    session.interpreter = 'python{}'.format(py)
-
     # Install test dependencies.
     _install_test_dependencies(session)
 
@@ -86,21 +82,14 @@ def unit(session, py):
     )
 
 
-@nox.session
-@nox.parametrize('py', ['2.7', '3.6'])
-def system(session, py):
+@nox.session(python=['2.7', '3.6'])
+def system(session):
     """Run the system test suite."""
 
     # Sanity check: Only run system tests if the environment variable is set.
     if not os.environ.get('GOOGLE_APPLICATION_CREDENTIALS', ''):
         session.skip('Credentials must be set via environment variable.')
 
-    # Run the system tests against latest Python 2 and Python 3 only.
-    session.interpreter = 'python{}'.format(py)
-
-    # Set the virtualenv dirname.
-    session.virtualenv_dirname = 'sys-' + py
-
     # Install test dependencies.
     _install_test_dependencies(session)
 
@@ -116,13 +105,12 @@ def system(session, py):
     )
 
 
-@nox.session
+@nox.session(python='3.6')
 def lint(session):
     """Run flake8.
     Returns a failure if flake8 finds linting errors or sufficiently
     serious code quality issues.
     """
-    session.interpreter = 'python3.6'
     session.install('flake8')
 
     # Install dev packages.
@@ -138,37 +126,29 @@ def lint(session):
     )
 
 
-@nox.session
+@nox.session(python='3.6')
 def lint_setup_py(session):
     """Verify that setup.py is valid (including RST check)."""
-    session.interpreter = 'python3.6'
     session.install('docutils', 'pygments')
     session.run(
         'python', 'setup.py', 'check', '--restructuredtext', '--strict')
 
 
-@nox.session
+@nox.session(python='3.6')
 def cover(session):
     """Run the final coverage report.
     This outputs the coverage report aggregating coverage from the unit
     test runs (not system test runs), and then erases coverage data.
     """
-    session.interpreter = 'python3.6'
     session.install('coverage', 'pytest-cov')
     session.run('coverage', 'report', '--show-missing', '--fail-under=100')
     session.run('coverage', 'erase')
 
 
-@nox.session
+@nox.session(python='3.6')
 def docs(session):
     """Build the docs."""
 
-    # Build docs against the latest version of Python, because we can.
-    session.interpreter = 'python3.6'
-
-    # Set the virtualenv dirname.
-    session.virtualenv_dirname = 'docs'
-
     # Install Sphinx and also all of the google-cloud-* packages.
     session.chdir(os.path.realpath(os.path.dirname(__file__)))
     session.install('-r', os.path.join('docs', 'requirements.txt'))