Don't test library against unsupported Python versions.

Crozzers · Crozzers · commit bdb1c16d985b · 2022-04-07T23:48:50.000+01:00
Previously the tests would still be run against Python 2.7 if they found it installed on your machine.
Now they will run on Python versions 3.5 to 3.10 and currently unreleased versions up to and including 3.19.
diff --git a/test/testall.py b/test/testall.py
@@ -26,7 +26,8 @@ def _python_ver_from_python(python):
 
 def _gen_python_names():
     yield "python"
-    for ver in [(2,6), (2,7), (3,3), (3,4), (3,5), (3,6), (3,7)]:
+    # generate version numbers from python 3.5 to 3.20
+    for ver in [(3, i) for i in range(5, 20)]:
         yield "python%d.%d" % ver
         if sys.platform == "win32":
             yield "python%d%d" % ver
@@ -43,8 +44,8 @@ def _gen_pythons():
 
 def testall():
     for ver, python in _gen_pythons():
-        if ver < (2,6) or ver in ((3,0), (3,1), (3,2)):
-            # Don't support Python < 2.6, 3.0/3.1/3.2.
+        if ver < (3, 5):
+            # Don't support Python < 3.5
             continue
         ver_str = "%s.%s" % ver
         print("-- test with Python %s (%s)" % (ver_str, python))
