Moved MAGIC -> Bolt.MAGIC_PREAMBLE in aio

Author: technige

neo4j/aio/__init__.py

@@ -79,9 +79,6 @@
 log = getLogger(__name__)
 
 
-MAGIC = b"\x60\x60\xB0\x17"
-
-
 class Bolt(Addressable, object):
     """ Connection to a Bolt-enabled server.
 
@@ -94,6 +91,9 @@ class Bolt(Addressable, object):
 
     """
 
+    #:
+    MAGIC_PREAMBLE = b"\x60\x60\xB0\x17"
+
     #: True if this instance uses secure communication, false
     #: otherwise.
     secure = None
@@ -276,7 +276,7 @@ async def _handshake(cls, reader, writer, protocol_version):
             raise ValueError("No protocol handlers available (requested Bolt %r)", protocol_version)
         offered_versions = sorted(handlers.keys(), reverse=True)[:4]
 
-        request_data = MAGIC + b"".join(
+        request_data = cls.MAGIC_PREAMBLE + b"".join(
             v.to_bytes() for v in offered_versions).ljust(16, b"\x00")
         log.debug("[#%04X] C: <HANDSHAKE> %r", local_address.port_number, request_data)
         writer.write(request_data)