Version simplifications.

src/gevent/_socket3.py

@@ -628,24 +628,7 @@ class socket(object):
         del _added
 
 
-if sys.version_info[:2] == (3, 4) and sys.version_info[:3] <= (3, 4, 2):
-    # Python 3.4, up to and including 3.4.2, had a bug where the
-    # SocketType enumeration overwrote the SocketType class imported
-    # from _socket. This was fixed in 3.4.3 (http://bugs.python.org/issue20386
-    # and https://github.com/python/cpython/commit/0d2f85f38a9691efdfd1e7285c4262cab7f17db7).
-    # Prior to that, if we replace SocketType with our own class, the implementation
-    # of socket.type breaks with "OSError: [Errno 97] Address family not supported by protocol".
-    # Therefore, on these old versions, we must preserve it as an enum; while this
-    # seems like it could lead to non-green behaviour, code on those versions
-    # cannot possibly be using SocketType as a class anyway.
-    SocketType = __socket__.SocketType # pylint:disable=no-member
-    # Fixup __all__; note that we get exec'd multiple times during unit tests
-    if 'SocketType' in __implements__:
-        __implements__.remove('SocketType')
-    if 'SocketType' not in __imports__:
-        __imports__.append('SocketType')
-else:
-    SocketType = socket
+SocketType = socket
 
 
 def fromfd(fd, family, type, proto=0):

src/gevent/monkey.py

@@ -827,7 +827,7 @@ def patch_select(aggressive=True):
         remove_item(select, 'kevent')
         remove_item(select, 'devpoll')
 
-    if sys.version_info[:2] >= (3, 4):
+    if PY3:
         # Python 3 wants to use `select.select` as a member function,
         # leading to this error in selectors.py (because gevent.select.select is
         # not a builtin and doesn't get the magic auto-static that they do)

src/gevent/tests/known_failures.py

@@ -314,7 +314,7 @@ if PY3:
 
 
 
-if sys.version_info[:2] >= (3, 4) and APPVEYOR:
+if PY3 and APPVEYOR:
     FAILING_TESTS += [
         # Timing issues on appveyor
         'FLAKY test_selectors.py'

src/gevent/tests/test__monkey_selectors.py

@@ -8,7 +8,7 @@ except ImportError:
 from gevent.monkey import patch_all
 patch_all()
 
-if sys.platform != 'win32' and sys.version_info[:2] >= (3, 4):
+if sys.platform != 'win32' and greentest.PY3:
 
     class TestSelectors(greentest.TestCase):
 

src/gevent/tests/test__threading_monkey_in_thread.py

@@ -44,7 +44,7 @@ class Test(greentest.TestCase):
 
 
         # We generated some warnings
-        if sys.version_info >= (3, 4):
+        if greentest.PY3:
             self.assertEqual(all_warnings,
                              ['Monkey-patching outside the main native thread. Some APIs will not be '
                               'available. Expect a KeyError to be printed at shutdown.',