refactors to allow Server init without yaml file

Author: WolfgangFahl

gremlin/__init__.py

@@ -1 +1 @@
-__version__ = "0.0.2"
+__version__ = "0.0.3"

gremlin/remote.py

@@ -17,14 +17,25 @@ class RemoteTraversal:
     helper class for Apache Tinkerpop Gremlin Python GLV remote access
     """
 
-    def __init__(self,serverName='server',config_path:str=None):
+    def __init__(self,server):
         """
         constructor
         
+        """
+        self.server=server
+        
+    @classmethod
+    def fromYaml(cls,serverName='server',config_path:str=None)->"RemoteTraversal":
+        """
+        create a server from the given yaml file
+        
         Args:
             serverName(str): the servername to use
+            config_path(str): the path to the server configuration file
         """
-        self.server=Server.read(serverName,config_path)
+        server=Server.read(serverName,config_path)
+        rt=RemoteTraversal(server)
+        return rt
 
     def g(self):
         """

tests/base_gremlin_test.py

@@ -4,7 +4,7 @@
 @author: wf
 '''
 from tests.basetest import Basetest
-from gremlin.remote import RemoteTraversal
+from gremlin.remote import RemoteTraversal, Server
 from gremlin.examples import Examples, Volume
 
 class BaseGremlinTest(Basetest):
@@ -17,7 +17,8 @@ def setUp(self, debug=False, profile=True):
         prepare the test environment
         """
         Basetest.setUp(self, debug, profile)
-        self.remote_traversal=RemoteTraversal()
+        self.server=Server()
+        self.remote_traversal=RemoteTraversal(self.server)
         self.g=self.remote_traversal.g()
         self.volume=Volume.docker()
         self.examples=Examples(volume=self.volume,debug=self.debug)

tests/test_003_connection.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # see https://github.com/apache/tinkerpop/blob/master/gremlin-python/src/main/jython/tests/driver/test_client.py
 from gremlin_python.driver.request import RequestMessage
-from gremlin.remote import RemoteTraversal
+from gremlin.remote import RemoteTraversal, Server
 from tests.basetest import Basetest
 
 class TestConnection(Basetest):
@@ -11,10 +11,11 @@ class TestConnection(Basetest):
     # test a connection
     def test_connection(self):
         # see https://github.com/apache/tinkerpop/blob/master/gremlin-python/src/main/jython/gremlin_python/driver/driver_remote_connection.py
-        remoteTraversal=RemoteTraversal()
-        g = remoteTraversal.g()
+        server=Server()
+        remote_traversal=RemoteTraversal(server)
+        g = remote_traversal.g()
         t=g.V()
-        remoteConnection=remoteTraversal.remoteConnection
+        remoteConnection=remote_traversal.remoteConnection
         # see https://github.com/apache/tinkerpop/blob/master/gremlin-python/src/main/jython/gremlin_python/driver/client.py
         client=remoteConnection._client