python 3.6 support removed due to EOL, 2021-12-23 (#2365)

* this removes python 3.6 support due to EOL, 2021-12-23

* added py39

* Update pyproject.toml

Co-authored-by: vfdev <vfdev.5@gmail.com>

* adds python 3.9

* Update pytorch-version-tests.yml

* black no support py39

Co-authored-by: vfdev <vfdev.5@gmail.com>
Co-authored-by: Sylvain Desroziers <sylvain.desroziers@gmail.com>

Author: 3 people

.github/workflows/pytorch-version-tests.yml

@@ -13,11 +13,19 @@ jobs:
       max-parallel: 10
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        python-version: [3.7, 3.8, 3.9]
         pytorch-version: [1.9.1, 1.8.1, 1.7.1, 1.6.0, 1.5.1, 1.4.0, 1.3.1]
         exclude:
           - pytorch-version: 1.3.1
             python-version: 3.8
+          - pytorch-version: 1.3.1
+            python-version: 3.9
+          - pytorch-version: 1.4.0
+            python-version: 3.9
+          - pytorch-version: 1.5.1
+            python-version: 3.9 
+          - pytorch-version: 1.6.0
+            python-version: 3.9 
 
     steps:
       - uses: actions/checkout@v2

.github/workflows/unit-tests.yml

@@ -36,7 +36,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9]
         pytorch-channel: [pytorch, pytorch-nightly]
         include:
           # includes a single build on windows

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.black]
 line-length = 120
-target-version = ['py36', 'py37', 'py38']
+target-version = ['py37', 'py38']
 include = '\.pyi?$'
 exclude = '''