Add classifier and tests for PyPy 3

Author: Cito

.github/workflows/test-package.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.6, 3.7, 3.8, 3.9, pypy3]
 
     steps:
     - uses: actions/checkout@v2

.gitignore

@@ -3,6 +3,7 @@
 *.bak
 *.cache
 *.default
+*.db
 *.egg-info
 *.log
 *.patch
@@ -19,9 +20,7 @@ build/
 dist/
 _build/
 
-Thumbs.db
 .DS_Store
-demo.db
 
 Cache/
 Logs/

MANIFEST.in

@@ -22,4 +22,4 @@ graft docs
 recursive-include docs *.rst conf.py Makefile make.bat *.png
 prune docs/_build
 
-global-exclude *.py[co] *.ses __pycache__
+global-exclude *.py[co] *.db *.ses __pycache__

setup.py

@@ -23,7 +23,8 @@
 ]
 requireTests = [
     'psutil>=5.7,<6', 'flake8>=3.8,<4', 'pylint>=2.6,<3', 'tox>=3.20,<4',
-    'pywin32>=227,<300;sys_platform=="win32"'
+    'pywin32>=228,<300;'
+    'sys_platform=="win32" and implementation_name=="cpython"'
 ] + requireDev + requireDocs + requireExamples
 
 
@@ -56,6 +57,8 @@
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: Implementation :: CPython',
+        'Programming Language :: Python :: Implementation :: PyPy',
         'Operating System :: OS Independent',
     ],
     extras_require={

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{36,37,38,39}, flake8, pylint, docs, manifest
+envlist = py{36,37,38,39}, pypy3, flake8, pylint, docs, manifest
 
 [testenv:flake8]
 basepython = python3.8