Switch get_protocol_version_name back to unicode.

OpenSSL/SSL.py

@@ -1888,11 +1888,12 @@ def get_protocol_version_name(self):
         Obtain the protocol version of the current connection.
 
         :returns: The TLS version of the current connection, for example
-            the value for TLS 1.2 would be ``b'TLSv1.2'``.
-        :rtype: :py:class:`bytes`
+            the value for TLS 1.2 would be ``TLSv1.2``or ``Unknown``
+            for connections that were not successfully.
+        :rtype: :py:class:`unicode`
         """
         version = _ffi.string(_lib.SSL_get_version(self._ssl))
-        return version
+        return version.decode("utf-8")
 
 
     def get_protocol_version(self):

OpenSSL/test/test_ssl.py

@@ -2754,8 +2754,8 @@ def test_get_protocol_version_name(self):
         client_protocol_version_name = client.get_protocol_version_name()
         server_protocol_version_name = server.get_protocol_version_name()
 
-        self.assertIsInstance(server_protocol_version_name, bytes)
-        self.assertIsInstance(client_protocol_version_name, bytes)
+        self.assertIsInstance(server_protocol_version_name, text_type)
+        self.assertIsInstance(client_protocol_version_name, text_type)
 
         self.assertEqual(server_protocol_version_name, client_protocol_version_name)
 

doc/api/ssl.rst

@@ -608,9 +608,8 @@ Connection objects have the following methods:
 .. py:method:: Connection.get_protocol_version_name()
 
     Retrieve the version of the SSL or TLS protocol used by the Connection.
-    For example, it will return ``TLSv1`` in bytes for connections made over
-    TLS version 1, or ``Unknown`` for connections that were not successfully
-    established.
+    For example, it will return ``TLSv1`` for connections made over TLS version
+    1, or ``Unknown`` for connections that were not successfully established.
 
 
 .. py:method:: Connection.get_client_ca_list()