I'm using gremlinpython. Inserting a vertex with a property value of greater than 32-bits results in a KeyError.
g.addV('test').property('size', 2147483648).iterate()
File "/home/ec2-user/src/common/test.py", line 74, in insert_vertices
self.g.addV('test').property('size', 2147483648).iterate()
File "/home/ec2-user/venv/lib64/python3.6/dist-packages/gremlin_python/process/traversal.py", line 65, in iterate
try: self.nextTraverser()
File "/home/ec2-user/venv/lib64/python3.6/dist-packages/gremlin_python/process/traversal.py", line 70, in nextTraverser
self.traversal_strategies.apply_strategies(self)
File "/home/ec2-user/venv/lib64/python3.6/dist-packages/gremlin_python/process/traversal.py", line 506, in apply_strategies
traversal_strategy.apply(traversal)
File "/home/ec2-user/venv/lib64/python3.6/dist-packages/gremlin_python/driver/remote_connection.py", line 148, in apply
remote_traversal = self.remote_connection.submit(traversal.bytecode)
File "/home/ec2-user/venv/lib64/python3.6/dist-packages/gremlin_python/driver/driver_remote_connection.py", line 54, in submit
results = result_set.all().result()
File "/usr/lib64/python3.6/concurrent/futures/_base.py", line 432, in result
return self.__get_result()
File "/usr/lib64/python3.6/concurrent/futures/_base.py", line 384, in __get_result
raise self._exception
File "/home/ec2-user/venv/lib64/python3.6/dist-packages/gremlin_python/driver/resultset.py", line 90, in cb
f.result()
File "/usr/lib64/python3.6/concurrent/futures/_base.py", line 425, in result
return self.__get_result()
File "/usr/lib64/python3.6/concurrent/futures/_base.py", line 384, in __get_result
raise self._exception
File "/usr/lib64/python3.6/concurrent/futures/thread.py", line 56, in run
result = self.fn(*self.args, **self.kwargs)
File "/home/ec2-user/venv/lib64/python3.6/dist-packages/gremlin_python/driver/connection.py", line 80, in _receive
status_code = self._protocol.data_received(data, self._results)
File "/home/ec2-user/venv/lib64/python3.6/dist-packages/gremlin_python/driver/protocol.py", line 83, in data_received
result_set = results_dict[request_id]
KeyError: None
A value of less than 32 bits works fine
g.addV('test').property('size', 2147483647).iterate()
Casting it to float also works fine
g.addV('test').property('size', float(2147483648)).iterate()
Same behavior with a locally running gremlin server and a remote Neptune DB. It works fine from the gremlin console. So I don't think this is a server issue.
Python version - 3.6 and 3.7
gremlinpython version - 3.4.1
You explicitly need to define that number as a long() like:
from gremlin_python.statics import *
g.addV('test').property('size', long(2147483648)).iterate()
Related
I am trying to mimic as mentioned in GIT.
I almost commented everything, and just trying to run simply
g.V().count()
my connection details are correct, and matched to documentation...
I am getting following error.
Traceback (most recent call last):
File "c:\Users\PrasaRak\OneDrive\gremlin_azure_function\connect.py", line 193, in <module>
count_vertices(client)
File "c:\Users\PrasaRak\OneDrive\gremlin_azure_function\connect.py", line 116, in count_vertices
callback = client.submit(_gremlin_count_vertices)
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\gremlin_python\driver\client.py", line 127, in submit
return self.submitAsync(message, bindings=bindings, request_options=request_options).result()
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\gremlin_python\driver\client.py", line 148, in submitAsync
return conn.write(message)
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\gremlin_python\driver\connection.py", line 55, in write
self.connect()
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\gremlin_python\driver\connection.py", line 45, in connect
self._transport.connect(self._url, self._headers)
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\gremlin_python\driver\tornado\transport.py", line 40, in connect
self._ws = self._loop.run_sync(
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\ioloop.py", line 576, in run_sync
return future_cell[0].result()
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\simple_httpclient.py", line 269, in run
stream = yield self.tcp_client.connect(
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\gen.py", line 1133, in run
value = future.result()
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\gen.py", line 1147, in run
yielded = self.gen.send(value)
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\tcpclient.py", line 232, in connect
af, addr, stream = yield connector.start(connect_timeout=timeout)
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\tcpclient.py", line 87, in start
self.try_connect(iter(self.primary_addrs))
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\tcpclient.py", line 104, in try_connect
stream, future = self.connect(af, addr)
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\tcpclient.py", line 276, in _create_stream
return stream, stream.connect(addr)
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\iostream.py", line 1325, in connect
self._add_io_state(self.io_loop.WRITE)
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\iostream.py", line 1157, in _add_io_state
self.io_loop.add_handler(
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\site-packages\tornado\platform\asyncio.py", line 83, in add_handler
self.asyncio_loop.add_writer(
File "C:\Users\PrasaRak\Miniconda3\envs\learn-gremlin\lib\asyncio\events.py", line 507, in add_writer
raise NotImplementedError
NotImplementedError
I think i got the answer.
issue was with python 3.8 & Tornado compatibility, when it comes to asyncio.
more info is at this link
fix was to add following line in tornado/platform/asyncio.py
asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy()) # python-3.8.0a4
I have been trying to get a Jupyter object detection tutorial to run but for some reason, when the left hand side should go from In[] and switch to In1, it stays as In[0]. I assume this means the code isn't actually running. The top of the page also says there is a Kernel Error and when I click this, the following code is displayed:
Traceback (most recent call last):
File "c:\anaconda\envs\tensorflow1\lib\site-packages\tornado\web.py", line 1703, in _execute
result = await result
File "c:\anaconda\envs\tensorflow1\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "c:\anaconda\envs\tensorflow1\lib\site-packages\notebook\services\sessions\handlers.py", line 69, in post
model = yield maybe_future(
File "c:\anaconda\envs\tensorflow1\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "c:\anaconda\envs\tensorflow1\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "c:\anaconda\envs\tensorflow1\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
File "c:\anaconda\envs\tensorflow1\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "c:\anaconda\envs\tensorflow1\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "c:\anaconda\envs\tensorflow1\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 100, in start_kernel_for_session
kernel_id = yield maybe_future(
File "c:\anaconda\envs\tensorflow1\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "c:\anaconda\envs\tensorflow1\lib\site-packages\tornado\gen.py", line 209, in wrapper
yielded = next(result)
File "c:\anaconda\envs\tensorflow1\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "c:\anaconda\envs\tensorflow1\lib\site-packages\jupyter_client\multikernelmanager.py", line 158, in start_kernel
km.start_kernel(**kwargs)
File "c:\anaconda\envs\tensorflow1\lib\site-packages\jupyter_client\manager.py", line 301, in start_kernel
kernel_cmd, kw = self.pre_start_kernel(**kw)
File "c:\anaconda\envs\tensorflow1\lib\site-packages\jupyter_client\manager.py", line 248, in pre_start_kernel
self.write_connection_file()
File "c:\anaconda\envs\tensorflow1\lib\site-packages\jupyter_client\connect.py", line 468, in write_connection_file
self.connection_file, cfg = write_connection_file(self.connection_file,
File "c:\anaconda\envs\tensorflow1\lib\site-packages\jupyter_client\connect.py", line 138, in write_connection_file
with secure_write(fname) as f:
File "c:\anaconda\envs\tensorflow1\lib\contextlib.py", line 113, in enter
return next(self.gen)
File "c:\anaconda\envs\tensorflow1\lib\site-packages\jupyter_core\paths.py", line 435, in secure_write
win32_restrict_file_to_user(fname)
File "c:\anaconda\envs\tensorflow1\lib\site-packages\jupyter_core\paths.py", line 361, in win32_restrict_file_to_user
import win32api
ImportError: DLL load failed while importing win32api: The specified module could not be found.
I am not sure why there is an import error. For reference, I have downloaded CUDA 10.1, cuDNN 7.6.5, anaconda for python 3.6, and TensorFlow 2.0.0. Please let me know how I can fix this to get the Jupyter code to run.
I had the same problem. Then I rebooted and it worked fine.
I am new to Jupyter notebook when I try to create a Jupyter notebook, it fail to start the kernel by showing below error message, my python version is 3.5.2 and jupyter version is 4.2.0:
Traceback (most recent call last):
File "/home/andy/anaconda3/lib/python3.5/site-packages/traitlets/traitlets.py", line 526, in get
value = obj._trait_values[self.name]
KeyError: 'loop'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/andy/anaconda3/lib/python3.5/site-packages/notebook/base/handlers.py", line 457, in wrapper
result = yield gen.maybe_future(method(self, *args, **kwargs))
File "/home/andy/.local/lib/python3.5/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/home/andy/anaconda3/lib/python3.5/asyncio/futures.py", line 274, in result
raise self._exception
File "/home/andy/.local/lib/python3.5/site-packages/tornado/gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "/home/andy/anaconda3/lib/python3.5/site-packages/notebook/services/sessions/handlers.py", line 62, in post
kernel_id=kernel_id))
File "/home/andy/.local/lib/python3.5/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/home/andy/anaconda3/lib/python3.5/asyncio/futures.py", line 274, in result
raise self._exception
File "/home/andy/.local/lib/python3.5/site-packages/tornado/gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "/home/andy/anaconda3/lib/python3.5/site-packages/notebook/services/sessions/sessionmanager.py", line 79, in create_session
kernel_name)
File "/home/andy/.local/lib/python3.5/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/home/andy/anaconda3/lib/python3.5/asyncio/futures.py", line 274, in result
raise self._exception
File "/home/andy/.local/lib/python3.5/site-packages/tornado/gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "/home/andy/anaconda3/lib/python3.5/site-packages/notebook/services/sessions/sessionmanager.py", line 92, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "/home/andy/.local/lib/python3.5/site-packages/tornado/gen.py", line 1133, in run
value = future.result()
File "/home/andy/anaconda3/lib/python3.5/asyncio/futures.py", line 274, in result
raise self._exception
File "/home/andy/.local/lib/python3.5/site-packages/tornado/gen.py", line 326, in wrapper
yielded = next(result)
File "/home/andy/anaconda3/lib/python3.5/site-packages/notebook/services/kernels/kernelmanager.py", line 87, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "/home/andy/anaconda3/lib/python3.5/site-packages/jupyter_client/multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "/home/andy/anaconda3/lib/python3.5/site-packages/jupyter_client/manager.py", line 258, in start_kernel
self.start_restarter()
File "/home/andy/anaconda3/lib/python3.5/site-packages/jupyter_client/ioloop/manager.py", line 49, in start_restarter
kernel_manager=self, loop=self.loop,
File "/home/andy/anaconda3/lib/python3.5/site-packages/traitlets/traitlets.py", line 554, in __get__
return self.get(obj, cls)
File "/home/andy/anaconda3/lib/python3.5/site-packages/traitlets/traitlets.py", line 533, in get
value = self._validate(obj, dynamic_default())
File "/home/andy/anaconda3/lib/python3.5/site-packages/traitlets/traitlets.py", line 589, in _validate
value = self.validate(obj, value)
File "/home/andy/anaconda3/lib/python3.5/site-packages/traitlets/traitlets.py", line 1681, in validate
self.error(obj, value)
File "/home/andy/anaconda3/lib/python3.5/site-packages/traitlets/traitlets.py", line 1528, in error
raise TraitError(e)
traitlets.traitlets.TraitError: The 'loop' trait of an IOLoopKernelManager instance must be a ZMQIOLoop, but a value of class 'tornado.platform.asyncio.AsyncIOMainLoop' (i.e. <tornado.platform.asyncio.AsyncIOMainLoop object at 0x7f1dd34e8ef0>) was specified.
And I have also checked the kernel by using below command:
jupyter kernelspec list
Get below result:
Available kernels:
python3 /home/andy/anaconda3/share/jupyter/kernels/python3
Can anyone help me?
Jupyter 4.2.0 is pretty old, and is not compatible with Tornado versions newer than 5.0. You need to either upgrade to a newer version of Jupyter or downgrade to an older version of Tornado (with pip, this would be pip install "tornado<5.0". I don't know the conda equivalent)
I have installed airflow and trying to start the worker on the mac. But I am getting following error. Unable to identify what must be causing this issue.
[2018-05-02 15:37:11,458: CRITICAL/MainProcess] Unrecoverable error: TypeError("Invalid argument(s) 'visibility_timeout' sent to create_engine(), using configuration MySQLDialect_mysqldb/QueuePool/Engine. Please check that the keyword arguments are appropriate for this combination of components.",)
Traceback (most recent call last):
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/celery/worker/worker.py", line 203, in start
self.blueprint.start(self)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/celery/bootsteps.py", line 119, in start
step.start(parent)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/celery/bootsteps.py", line 370, in start
return self.obj.start()
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/celery/worker/consumer/consumer.py", line 320, in start
blueprint.start(self)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/celery/bootsteps.py", line 119, in start
step.start(parent)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/celery/worker/consumer/tasks.py", line 37, in start
c.connection, on_decode_error=c.on_decode_error,
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/celery/app/amqp.py", line 302, in TaskConsumer
**kw
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/messaging.py", line 386, in __init__
self.revive(self.channel)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/messaging.py", line 408, in revive
self.declare()
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/messaging.py", line 421, in declare
queue.declare()
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/entity.py", line 605, in declare
self._create_queue(nowait=nowait, channel=channel)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/entity.py", line 614, in _create_queue
self.queue_declare(nowait=nowait, passive=False, channel=channel)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/entity.py", line 649, in queue_declare
nowait=nowait,
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/transport/virtual/base.py", line 531, in queue_declare
self._new_queue(queue, **kwargs)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/transport/sqlalchemy/__init__.py", line 82, in _new_queue
self._get_or_create(queue)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/transport/sqlalchemy/__init__.py", line 70, in _get_or_create
obj = self.session.query(self.queue_cls) \
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/transport/sqlalchemy/__init__.py", line 65, in session
_, Session = self._open()
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/transport/sqlalchemy/__init__.py", line 56, in _open
engine = self._engine_from_config()
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/kombu/transport/sqlalchemy/__init__.py", line 51, in _engine_from_config
return create_engine(conninfo.hostname, **transport_options)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/sqlalchemy/engine/__init__.py", line 424, in create_engine
return strategy.create(*args, **kwargs)
File "/Users/manishz/anaconda2/envs/airflow/lib/python2.7/site-packages/sqlalchemy/engine/strategies.py", line 162, in create
engineclass.__name__))
TypeError: Invalid argument(s) 'visibility_timeout' sent to create_engine(), using configuration MySQLDialect_mysqldb/QueuePool/Engine. Please check that the keyword arguments are appropriate for this combination of components.
Appreciate any help on it.
Thanks in avance
Manish
I've already seen this answer:
Gremlin, How to add edge to existing vertex in gremlin-python
and it wasn't really helpful. As suggested in one of the comments I did try to update gremlinpython 3.3.0 but then I get key error.
Stack:
JanusGraph 0.2.0, gremlinpython3.2.3
This is my code
from gremlin_python import statics
from gremlin_python.structure.graph import Graph
from gremlin_python.process.graph_traversal import __
from gremlin_python.process.strategies import *
from gremlin_python.driver.driver_remote_connection import DriverRemoteConnection
graph = Graph()
g = graph.traversal().withRemote(DriverRemoteConnection('ws://localhost:8182/gremlin','g'))
martha = g.V().has('name','martha').next()
jack = g.V().has('name','jack').next()
#e_id = g.addE(jack,'likes',martha).next()
e_id = g.V(martha).as_('to').V(jack).addE("Likes").to('to').toList()
print e_id.toList()
StackTrace with gremlinpython 3.3.0
Traceback (most recent call last):
File "gremlin-py.py", line 9, in <module>
martha = g.V().has('name','martha').next()
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 70,in next
return self.__next__()
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 43,in __next__
self.traversal_strategies.apply_strategies(self)
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 352, in apply_strategies
traversal_strategy.apply(traversal)
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/driver/remote_connection.py", line 143, in apply
remote_traversal = self.remote_connection.submit(traversal.bytecode)
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/driver/driver_remote_connection.py", line 54, in submit
results = result_set.all().result()
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/concurrent/futures/_base.py", line 429, in result
return self.__get_result()
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/concurrent/futures/_base.py", line 381, in __get_result
raise exception_type, self._exception, self._traceback
KeyError: None
In my case, 3.3.0 is throwing error for all queries including g.V().next(). Now going back to 3.2.3, addvertex and other queries are working absolutely fine, but I couldn't figure out how to add edges. The same code when run with 3.2.3 produces,
StackTrace with gremlinpython 3.2.3
Traceback (most recent call last): File "gremlin-py.py", line 12, in <module>
e_id = g.V(martha).as_('to').V(jack).addE("Likes").to('to').toList()
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 52, in toList return list(iter(self))
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 70, in next
return self.__next__() File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 43, in __next__
self.traversal_strategies.apply_strategies(self) File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 284, in apply_strategies
traversal_strategy.apply(traversal)
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/driver/remote_connection.py", line 95, in apply remote_traversal = self.remote_connection.submit(traversal.bytecode) File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/driver/driver_remote_connection.py", line 53, in submit traversers = self._loop.run_sync(lambda: self.submit_traversal_bytecode(request_id, bytecode))
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/tornado/ioloop.py", line 457, in run_sync
return future_cell[0].result() File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/tornado/concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/tornado/gen.py", line 285, in wrapper
yielded = next(result)
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/driver/driver_remote_connection.py", line 69, in submit_traversal_bytecode
"gremlin": self._graphson_writer.writeObject(bytecode),
File "/Users/arvindn/.virtualenvs/gremlinenv/lib/python2.7/site-packages/gremlin_python/structure/io/graphson.py", line 72, in writeObject
return json.dumps(self.toDict(objectData), separators=(',', ':'))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 250, in dumps
sort_keys=sort_keys, **kw).encode(obj)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/encoder.py", line 207, in encode
chunks = self.iterencode(o, _one_shot=True)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/encoder.py", line 270, in iterencode
return _iterencode(o, 0)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/encoder.py", line 184, in default
raise TypeError(repr(o) + " is not JSON serializable")
TypeError: v[4184] is not JSON serializable
It says v[x] is not JSON serializable. I'm not sure what causes this error. It'll be awesome if someone can help. If any more info is needed, I shall update the question accordingly.
JanusGraph 0.2.0 uses Apache TinkerPop 3.2.6. You should use the 3.2.6 version of the gremlinpython driver.
pip uninstall gremlinpython
pip install gremlinpython==3.2.6