IO Error not handeled in the code.

[saqibijaz]

File "/usr/src/app/utils/cadence_workflows.py", line 97, in send_email
return exec_workflow(
File "/usr/local/lib/python3.8/site-packages/cadence/workflow.py", line 209, in exec_workflow
start_response, err = workflow_client.service.start_workflow(start_request)
File "/usr/local/lib/python3.8/site-packages/cadence/workflowservice.py", line 72, in start_workflow
return self.call_return("StartWorkflowExecution", request, StartWorkflowExecutionResponse)
File "/usr/local/lib/python3.8/site-packages/cadence/workflowservice.py", line 59, in call_return
response = self.thrift_call(method_name, request)
File "/usr/local/lib/python3.8/site-packages/cadence/workflowservice.py", line 54, in thrift_call
response = self.connection.call_function(call)
File "/usr/local/lib/python3.8/site-packages/cadence/connection.py", line 351, in call_function
self.write_frame(frame)
File "/usr/local/lib/python3.8/site-packages/cadence/connection.py", line 335, in write_frame
frame.write(self.wrapper)
File "/usr/local/lib/python3.8/site-packages/cadence/frames.py", line 76, in write
self.write_header(wrapper)
File "/usr/local/lib/python3.8/site-packages/cadence/frames.py", line 80, in write_header
fp.write_short(self.get_size())
File "/usr/local/lib/python3.8/site-packages/cadence/ioutils.py", line 51, in write_short
self.io_stream.write(v.to_bytes(2, byteorder='big', signed=False))
File "/usr/local/lib/python3.8/socket.py", line 687, in write
return self._sock.send(b)
BrokenPipeError: [Errno 32] Broken pipe

[saqibijaz]

https://stackoverflow.com/questions/180095/how-to-handle-a-broken-pipe-sigpipe-in-python/180922#180922
cc: @firdaus