[protobuf] Error in UDF using google protobuf

[Arghya Basu]

I am getting the following error when executing UDF function. Please help 
to resolve the issue.


ts=2018-06-07T19:37:37.864Z lvl=info msg="UDF log" service=udf 
text="2018-06-07 19:37:37,864 INFO:root: Starting Agent"
ts=2018-06-07T19:37:37.864Z lvl=info msg="UDF log" service=udf 
text="Traceback (most recent call last):"
ts=2018-06-07T19:37:37.864Z lvl=info msg="UDF log" service=udf text="  File 
\"/home/ubuntu/kapacitor/udf/agent/py/kapacitor/udf/agent.py\", line 104, 
in _read_loop"
ts=2018-06-07T19:37:37.864Z lvl=info msg="UDF log" service=udf text="
response = self.handler.info()"
ts=2018-06-07T19:37:37.864Z lvl=info msg="UDF log" service=udf text="  File 
\"/home/ubuntu/kapacitor/udf/agent/examples/outliers/outliers.py\", line 
77, in info"
ts=2018-06-07T19:37:37.865Z lvl=info msg="UDF log" service=udf text="
response.info.options['field'].valueTypes.append(udf_pb2.STRING)"
ts=2018-06-07T19:37:37.865Z lvl=info msg="UDF log" service=udf text="  File 
\"/usr/lib/python2.7/dist-packages/google/protobuf/internal/containers.py\", 
line 64, in __getitem__"
ts=2018-06-07T19:37:37.865Z lvl=info msg="UDF log" service=udf text="
return self._values[key]"
ts=2018-06-07T19:37:37.865Z lvl=info msg="UDF log" service=udf 
text="TypeError: list indices must be integers, not str"
ts=2018-06-07T19:37:37.865Z lvl=info msg="UDF log" service=udf 
text="2018-06-07 19:37:37,865 ERROR:root: error processing request of type 
info: list indices must be integers, not str"
ts=2018-06-07T19:37:37.865Z lvl=error msg="received error message" 
service=udf err="error processing request of type info: list indices must 
be integers, not str"
ts=2018-06-07T19:37:37.865Z lvl=info msg="UDF log" service=udf 
text="2018-06-07 19:37:37,865 INFO:root: Agent finished"

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[protobuf] Unable to parse using google Protobuf in Python3.5

[Arghya Basu]

Error log trace
===

ts=2018-06-04T10:08:06.672Z lvl=info msg="UDF log" service=udf text="
request.ParseFromString(body)"
ts=2018-06-04T10:08:06.672Z lvl=info msg="UDF log" service=udf 
text="google.protobuf.message.DecodeError: Error parsing message"
ts=2018-06-04T10:08:06.672Z lvl=info msg="UDF log" service=udf 
text="2018-06-04 10:08:06,672 ERROR:root: error processing request of type 
unknown: Error parsing message"


Python code
==

request = udf_pb2.Request()

self._in = self._in.detach()
data = self._in.read()
data = data.decode("ascii","replace")

if type(data) == str:
data = bytearray(data, "utf-8")
body = bytes(data)

request.ParseFromString(body)



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