Update nox to latest supported python versions.

.travis.yml

@@ -2,14 +2,14 @@ language: python
 dist: xenial
 matrix:
   include:
-  - python: '3.5'
-    env: NOXSESSION="tests-3.5"
   - python: '3.6'
     env: NOXSESSION="tests-3.6"
   - python: '3.7'
     env: NOXSESSION="tests-3.7"
   - python: '3.8'
     env: NOXSESSION="tests-3.8"
+  - python: '3.9'
+    env: NOXSESSION="tests-3.9"
   - python: '3.8'
     env: NOXSESSION="lint"
   - python: '3.8'

CONTRIBUTING.md

@@ -39,10 +39,11 @@ To just check for lint errors, run:
 
 To run against a particular Python version:
 
-    nox --session tests-3.5
     nox --session tests-3.6
     nox --session tests-3.7
     nox --session tests-3.8
+    nox --session tests-3.9
+
 
 When you send a pull request Travis will handle running everything, but it is
 recommended to test as much as possible locally before pushing.

appveyor.yml

@@ -10,6 +10,16 @@ environment:
     # a later point release.
     # See: http://www.appveyor.com/docs/installed-software#python
 
+    - PYTHON: "C:\\Python39"
+      # There is no miniconda for python3.9 at this time
+      CONDA: "C:\\Miniconda37"
+      NOX_SESSION: "tests-3.9"
+
+    - PYTHON: "C:\\Python39-x64"
+      # There is no miniconda for python3.9 at this time
+      CONDA: "C:\\Miniconda37-x64"
+      NOX_SESSION: "tests-3.9"
+
     - PYTHON: "C:\\Python38"
       # There is no miniconda for python3.8 at this time
       CONDA: "C:\\Miniconda37"
@@ -36,13 +46,6 @@ environment:
       CONDA: "C:\\Miniconda36-x64"
       NOX_SESSION: "tests-3.6"
 
-    - PYTHON: "C:\\Python35"
-      CONDA: "C:\\Miniconda35"
-      NOX_SESSION: "tests-3.5"
-
-    - PYTHON: "C:\\Python35-x64"
-      CONDA: "C:\\Miniconda35-x64"
-      NOX_SESSION: "tests-3.5"
 
 install:
   # Add conda command to path.

docs/config.rst

@@ -116,7 +116,7 @@ When collecting your sessions, Nox will create a separate session for each inter
 
 .. code-block:: python
 
-    @nox.session(python=['2.7', '3.5', '3.6', '3.7', '3.8'])
+    @nox.session(python=['2.7', '3.6', '3.7', '3.8', '3.9'])
     def tests(session):
         pass
 
@@ -125,10 +125,10 @@ Will produce these sessions:
 .. code-block:: console
 
     * tests-2.7
-    * tests-3.5
     * tests-3.6
     * tests-3.7
     * tests-3.8
+    * tests-3.9
 
 Note that this expansion happens *before* parameterization occurs, so you can still parametrize sessions with multiple interpreters.
 

docs/tutorial.rst

@@ -282,7 +282,7 @@ If you want your session to run against multiple versions of Python:
 
 .. code-block:: python
 
-    @nox.session(python=["2.7", "3.5", "3.7"])
+    @nox.session(python=["2.7", "3.6", "3.7"])
     def test(session):
         ...
 
@@ -294,7 +294,7 @@ been expanded into three distinct sessions:
     Sessions defined in noxfile.py:
 
     * test-2.7
-    * test-3.5
+    * test-3.6
     * test-3.7
 
 You can run all of the ``test`` sessions using ``nox --sessions test`` or run

noxfile.py

@@ -28,7 +28,7 @@ def is_python_version(session, version):
     return py_version.startswith(version)
 
 
-@nox.session(python=["3.5", "3.6", "3.7", "3.8"])
+@nox.session(python=["3.6", "3.7", "3.8", "3.9"])
 def tests(session):
     """Run test suite with pytest."""
     session.create_tmp()
@@ -44,7 +44,7 @@ def tests(session):
     session.notify("cover")
 
 
-@nox.session(python=["3.5", "3.6", "3.7", "3.8"], venv_backend="conda")
+@nox.session(python=["3.6", "3.7", "3.8", "3.9"], venv_backend="conda")
 def conda_tests(session):
     """Run test suite with pytest."""
     session.create_tmp()

setup.py

@@ -35,10 +35,10 @@
         "Environment :: Console",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Operating System :: POSIX",
         "Operating System :: MacOS",
         "Operating System :: Unix",
@@ -68,5 +68,5 @@
         "Source Code": "https://github.com/theacodes/nox",
         "Bug Tracker": "https://github.com/theacodes/nox/issues",
     },
-    python_requires=">=3.5",
+    python_requires=">=3.6",
 )