better handle when no aws account could be resolved about datajob HOT 2 OPEN

Traceback (most recent call last):
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/bin/datajob", line 5, in <module>
    run()
  File "/Users/vincent/Workspace/datajob/datajob/datajob.py", line 77, in run
    stepfunctions_run.run(state_machine=state_machine)
  File "/Users/vincent/Workspace/datajob/datajob/stepfunctions/stepfunctions_run.py", line 27, in run
    state_machine_arn = _find_state_machine_arn(state_machine)
  File "/Users/vincent/Workspace/datajob/datajob/stepfunctions/stepfunctions_run.py", line 8, in _find_state_machine_arn
    workflows = Workflow.list_workflows()
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/stepfunctions/workflow/stepfunctions.py", line 109, in list_workflows
    for page in response_iterator:
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/paginate.py", line 255, in __iter__
    response = self._make_request(current_kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/paginate.py", line 332, in _make_request
    return self._method(**current_kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/client.py", line 357, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/client.py", line 663, in _make_api_call
    operation_model, request_dict, request_context)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/client.py", line 682, in _make_request
    return self._endpoint.make_request(operation_model, request_dict)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/endpoint.py", line 102, in make_request
    return self._send_request(request_dict, operation_model)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/endpoint.py", line 132, in _send_request
    request = self.create_request(request_dict, operation_model)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/endpoint.py", line 116, in create_request
    operation_name=operation_model.name)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/hooks.py", line 356, in emit
    return self._emitter.emit(aliased_event_name, **kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/hooks.py", line 228, in emit
    return self._emit(event_name, kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/hooks.py", line 211, in _emit
    response = handler(**kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/signers.py", line 90, in handler
    return self.sign(operation_name, request)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/signers.py", line 162, in sign
    auth.add_auth(request)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/auth.py", line 357, in add_auth
    raise NoCredentialsError
botocore.exceptions.NoCredentialsError: Unable to locate credentials
(datajob-KxqvMF6C-py3.6) Vincents-MacBook-Pro:datajob vincent$ datajob
Usage: datajob [OPTIONS] COMMAND [ARGS]...

Options:
  --install-completion  Install completion for the current shell.
  --show-completion     Show completion for the current shell, to copy it or
                        customize the installation.

  --help                Show this message and exit.

Commands:
  deploy
  destroy
  execute
  synthesize
(datajob-KxqvMF6C-py3.6) Vincents-MacBook-Pro:datajob vincent$ datajob execute
Traceback (most recent call last):
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/bin/datajob", line 5, in <module>
    run()
  File "/Users/vincent/Workspace/datajob/datajob/datajob.py", line 18, in run
    app()
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/typer/main.py", line 214, in __call__
    return get_command(self)(*args, **kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/typer/main.py", line 497, in wrapper
    return callback(**use_params)  # type: ignore
  File "/Users/vincent/Workspace/datajob/datajob/datajob.py", line 77, in execute
    stepfunctions_execute.execute(state_machine=state_machine)
  File "/Users/vincent/Workspace/datajob/datajob/stepfunctions/stepfunctions_execute.py", line 27, in execute
    state_machine_arn = _find_state_machine_arn(state_machine)
  File "/Users/vincent/Workspace/datajob/datajob/stepfunctions/stepfunctions_execute.py", line 8, in _find_state_machine_arn
    workflows = Workflow.list_workflows()
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/stepfunctions/workflow/stepfunctions.py", line 109, in list_workflows
    for page in response_iterator:
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/paginate.py", line 255, in __iter__
    response = self._make_request(current_kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/paginate.py", line 332, in _make_request
    return self._method(**current_kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/client.py", line 357, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/client.py", line 663, in _make_api_call
    operation_model, request_dict, request_context)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/client.py", line 682, in _make_request
    return self._endpoint.make_request(operation_model, request_dict)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/endpoint.py", line 102, in make_request
    return self._send_request(request_dict, operation_model)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/endpoint.py", line 132, in _send_request
    request = self.create_request(request_dict, operation_model)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/endpoint.py", line 116, in create_request
    operation_name=operation_model.name)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/hooks.py", line 356, in emit
    return self._emitter.emit(aliased_event_name, **kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/hooks.py", line 228, in emit
    return self._emit(event_name, kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/hooks.py", line 211, in _emit
    response = handler(**kwargs)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/signers.py", line 90, in handler
    return self.sign(operation_name, request)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/signers.py", line 162, in sign
    auth.add_auth(request)
  File "/Users/vincent/Library/Caches/pypoetry/virtualenvs/datajob-KxqvMF6C-py3.6/lib/python3.6/site-packages/botocore/auth.py", line 357, in add_auth
    raise NoCredentialsError
botocore.exceptions.NoCredentialsError: Unable to locate credentials