Drop Python 3.6 (#318)

Author: joshmoore

.github/workflows/ci-linux.yaml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
         os: [ubuntu-18.04, ubuntu-20.04]
 
     steps:

.github/workflows/ci-osx.yaml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
 
     steps:
       - name: Checkout source

.github/workflows/ci-windows.yaml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
 
     steps:
       - name: Checkout source

.github/workflows/wheel.yaml

@@ -13,7 +13,7 @@ jobs:
     env:
       CIBW_TEST_COMMAND: pytest --pyargs numcodecs
       CIBW_TEST_REQUIRES: pytest
-      CIBW_SKIP: "pp*"
+      CIBW_SKIP: "pp* cp36-*"
       CIBW_ENVIRONMENT: "DISABLE_NUMCODECS_AVX2=1"
       CIBW_ENVIRONMENT_MACOS: 'MACOSX_DEPLOYMENT_TARGET=10.9 DISABLE_NUMCODECS_AVX2=1 CFLAGS="$CFLAGS -Wno-implicit-function-declaration"'
 

docs/contributing.rst

@@ -43,8 +43,8 @@ a bug report:
    interpreter can be obtained by running a Python interactive session, e.g.::
 
     $ python
-    Python 3.6.1 (default, Mar 22 2017, 06:17:05)
-    [GCC 6.3.0 20170321] on linux
+    Python 3.7.6 (default, Jan  8 2020, 13:42:34)
+    [Clang 4.0.1 (tags/RELEASE_401/final)] :: Anaconda, Inc. on darwin
 
 3. An explanation of why the current behaviour is wrong/not desired, and what you
    expect instead.

docs/release.rst

@@ -36,6 +36,9 @@ Unreleased
   By :user:`Dimitri Papadopoulos Orfanos <DimitriPapadopoulos>`,
   :issue:`295`, :issue:`294`, :issue:`293`, and :issue:`292`.
 
+* Drop Python 3.6
+  By :user:`Josh Moore <joshmoore>`, :issue:`318`.
+
 .. _release_0.9.1:
 
 0.9.1