update pypy version in CI workflow (#187)

* update pypy version in CI workflow

* update minimal python version to 3.9

* update python version in setup.py

.github/workflows/main.yml

@@ -36,7 +36,7 @@ jobs:
         # os: [ubuntu-20.04, macos-latest, windows-latest]
 
         # https://github.com/actions/setup-python#specifying-a-pypy-version
-        python-version: ['3.7', '3.11', 'pypy-3.7', 'pypy-3.9']
+        python-version: ['3.9', '3.11', 'pypy-3.9', 'pypy-3.10']
 
     # https://github.blog/changelog/2020-04-15-github-actions-new-workflow-features/
     # https://docs.github.com/en/free-pro-team@latest/actions/reference/workflow-syntax-for-github-actions#jobsjob_idstepscontinue-on-error

setup.py

@@ -80,7 +80,7 @@
     author_email='[email protected]',
     url='https://github.com/crossbario/txaio',
     platforms=('Any'),
-    python_requires='>=3.7',
+    python_requires='>=3.9',
     extras_require={
         'twisted': extras_require_twisted,
         'asyncio': extras_require_asyncio,
@@ -111,8 +111,6 @@
         "Operating System :: OS Independent",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",

tox.ini

@@ -2,12 +2,12 @@
 skip_missing_interpreters = true
 envlist =
     flake8
-    py37-{tw203,tw2210,twtrunk,asyncio}
+    py39-{tw203,tw2210,twtrunk,asyncio}
     # Twisted <22.10 on Python 3.11 fails with:
     # src/twisted/test/raiser.c:198:12: fatal error: longintrepr.h: Datei oder Verzeichnis nicht gefunden
     py311-{       tw2210,twtrunk,asyncio}
-    pypy37-{tw203,tw2210,twtrunk,asyncio}
     pypy39-{tw203,tw2210,twtrunk,asyncio}
+    pypy310-{tw203,tw2210,twtrunk,asyncio}
 
 
 # MAP: GitHub Actions Python Name => Tox Env Name (for Python)
@@ -19,10 +19,10 @@ envlist =
 #
 [gh-actions]
 python =
-    3.7: py37
+    3.9: py39
     3.11: py311
-    pypy-3.7: pypy37
-    pypy-3.9: pypy39
+    pypy-3.9: pypy38
+    pypy-3.10: pypy310
 
 
 [testenv]