Merge pull request #47 from robotools/drop_py36

Drop support for Python 3.6

.github/workflows/run-tests.yml

@@ -18,15 +18,11 @@ jobs:
     if: "! contains(toJSON(github.event.commits.*.message), '[skip ci]')"
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9]
         platform: [ubuntu-latest, macos-latest, windows-latest]
         exclude: # Only test on the oldest and latest supported stable Python on macOS and Windows.
-          - platform: macos-latest
-            python-version: 3.7
           - platform: macos-latest
             python-version: 3.8
-          - platform: windows-latest
-            python-version: 3.7
           - platform: windows-latest
             python-version: 3.8
     steps:

README.rst

@@ -47,4 +47,4 @@ However, the import name for the package remains ``extractor``, without prefix.
    :target: https://github.com/robotools/extractor/actions?query=workflow%3ATests
 .. |PyPI Version| image:: https://img.shields.io/pypi/v/ufo-extractor.svg
    :target: https://pypi.org/project/ufo-extractor/
-.. |Python Versions| image:: https://img.shields.io/badge/python-3.6%2C%203.8-blue.svg
+.. |Python Versions| image:: https://img.shields.io/badge/python-3.7%2C%203.8%2C%203.9-blue.svg

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.0
-envlist = py3{6,7,8,9}
+envlist = py3{7,8,9}
 skip_missing_interpreters = true
 
 [testenv]