Fix tests on Python 3.4: It doesn't have SSLObject.

src/gevent/_ssl3.py

@@ -137,17 +137,23 @@ class _contextawaresock(socket._gevent_sock_class): # Python 2: pylint:disable=s
             pass
         raise AttributeError(name)
 
-_SSLObject_factory = SSLObject
-if hasattr(SSLObject, '_create'):
-    # 3.7 is making thing difficult and won't let you
-    # actually construct an object
-    def _SSLObject_factory(sslobj, owner=None, session=None):
-        s = SSLObject.__new__(SSLObject)
-        s._sslobj = sslobj
-        s._sslobj.owner = owner or s
-        if session is not None:
-            s._sslobj.session = session
-        return s
+try:
+    _SSLObject_factory = SSLObject
+except NameError:
+    # 3.4 and below do not have SSLObject, something
+    # we magically import through copy_globals
+    pass
+else:
+    if hasattr(SSLObject, '_create'):
+        # 3.7 is making thing difficult and won't let you
+        # actually construct an object
+        def _SSLObject_factory(sslobj, owner=None, session=None):
+            s = SSLObject.__new__(SSLObject)
+            s._sslobj = sslobj
+            s._sslobj.owner = owner or s
+            if session is not None:
+                s._sslobj.session = session
+            return s
 
 class SSLSocket(socket):
     """

src/greentest/test__local.py

@@ -274,7 +274,10 @@ class TestGeventLocal(greentest.TestCase):
         # The sentinels should be gone too
         self.assertEqual(len(deleted_sentinels), len(greenlets))
 
+    @greentest.skipOnLibuvOnPyPyOnWin("GC makes this non-deterministic, especially on Windows")
     def test_locals_collected_when_unreferenced_even_in_running_greenlet(self):
+        # In fact only on Windows do we see GC being an issue;
+        # pypy2 5.0 on macos and travis don't have a problem.
         # https://github.com/gevent/gevent/issues/981
         import gevent
         import gc
@@ -308,17 +311,16 @@ class TestGeventLocal(greentest.TestCase):
 
         self.assertEqual(count, len(deleted_sentinels))
 
+    @greentest.skipOnPyPy("GC makes this non-deterministic, especially on Windows")
     def test_local_dicts_for_greenlet(self):
+        # In fact, only on Windows do we see gc being an issue;
+        # pypy2 5.10 on macOS and Travis don't have a problem.
         import gevent
         from gevent.local import all_local_dicts_for_greenlet
         x = MyLocal()
         x.foo = 42
         del x.sentinel
 
-        if greentest.PYPY:
-            import gc
-            gc.collect()
-
         results = all_local_dicts_for_greenlet(gevent.getcurrent())
         self.assertEqual(results,
                          [((MyLocal, id(x)), {'foo': 42})])