Add python_requires to setup.py and extra py versions.

Author: carlosperate

.github/workflows/test.yml

@@ -12,6 +12,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest]
         python-version: [ '2.7', '3.5', '3.6', '3.7', '3.8', '3.9' ]
+      fail-fast: false
     runs-on: ${{ matrix.os }}
     name: Python ${{ matrix.python-version }} - ${{ matrix.os }}
     steps:

.gitignore

@@ -9,6 +9,7 @@ build/*
 docs/_build/*
 .pytest_cache/*
 .idea/*
+.vscode/*
 htmlcov/*
 tests/example.hex
 deb_dist/*

setup.py

@@ -28,13 +28,15 @@
         "Operating System :: POSIX",
         "Operating System :: Microsoft :: Windows",
         "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3.3",
-        "Programming Language :: Python :: 3.4",
         "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",
         "Topic :: Education",
         "Topic :: Software Development :: Embedded Systems",
     ],
+    python_requires="==2.7.*,>=3.5",
     entry_points={
         "console_scripts": ["uflash=uflash:main", "py2hex=uflash:py2hex"],
     },

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27, py35, lint
+envlist = py27, py35, py36, py37, py38, py39, lint
 
 [testenv]
 commands = py.test --cov-report term-missing --cov=uflash {posargs:tests/}