Taylor Riggan created TINKERPOP-1881:
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Summary: Gremlin-Python: id object does not appear to be
serializable
Key: TINKERPOP-1881
URL: https://issues.apache.org/jira/browse/TINKERPOP-1881
Project: TinkerPop
Issue Type: Bug
Components: python
Affects Versions: 3.3.1
Reporter: Taylor Riggan
When attempting to add vertices and edges with custom IDs using the following
traversal, Python returns an error stating that the returned object from the id
built-in function is not serializable.
Example traversal:
{code:java}
g.addV().property(id,"custom45").iterate()
{code}
Error / Stack trace:
{code:java}
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/process/traversal.py",
line 57, in iterate
try: self.nextTraverser()
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/process/traversal.py",
line 61, in nextTraverser
self.traversal_strategies.apply_strategies(self)
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/process/traversal.py",
line 352, in apply_strategies
traversal_strategy.apply(traversal)
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/driver/remote_connection.py",
line 143, in apply
remote_traversal = self.remote_connection.submit(traversal.bytecode)
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/driver/driver_remote_connection.py",
line 53, in submit
result_set = self._client.submit(bytecode)
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/driver/client.py", line
104, in submit
return self.submitAsync(message, bindings=bindings).result()
File "/usr/lib64/python3.6/concurrent/futures/_base.py", line 405, in result
return self.__get_result()
File "/usr/lib64/python3.6/concurrent/futures/_base.py", line 357, in
__get_result
raise self._exception
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/driver/connection.py",
line 63, in cb
f.result()
File "/usr/lib64/python3.6/concurrent/futures/_base.py", line 398, in result
return self.__get_result()
File "/usr/lib64/python3.6/concurrent/futures/_base.py", line 357, in
__get_result
raise self._exception
File "/usr/lib64/python3.6/concurrent/futures/thread.py", line 55, in run
result = self.fn(*self.args, **self.kwargs)
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/driver/protocol.py",
line 65, in write
request_id, request_message)
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/driver/serializer.py",
line 128, in serialize_message
message = self.build_message(request_id, processor, op, args)
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/driver/serializer.py",
line 138, in build_message
return self.finalize_message(message, b"\x21", self.version)
File
"/usr/local/lib/python3.6/site-packages/gremlin_python/driver/serializer.py",
line 141, in finalize_message
message = json.dumps(message)
File "/usr/lib64/python3.6/json/__init__.py", line 231, in dumps
return _default_encoder.encode(obj)
File "/usr/lib64/python3.6/json/encoder.py", line 199, in encode
chunks = self.iterencode(o, _one_shot=True)
File "/usr/lib64/python3.6/json/encoder.py", line 257, in iterencode
return _iterencode(o, 0)
File "/usr/lib64/python3.6/json/encoder.py", line 180, in default
o.__class__.__name__)
TypeError: Object of type 'builtin_function_or_method' is not JSON serializable
{code}
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