awslabs/chalice

Hi @team I am using chalice to deploy my lambda and fetching the env variable but its not able to set the env variable despite I am adding them in config.json file.
This is my config.json -

{
  "version": "2.0",
  "app_name": "CMSFilterApp",
  "stages": {
    "dev": {
      "api_gateway_stage": "api",
      "environment_variables": {
        "OUTPUT_STREAM": "filtered_cmsfeed",
      }
    }
  }
}

This is where I am fetching -
`output_stream_name = environ.get('OUTPUT_STREAM', False)

if environ.get('OUTPUT_STREAM', False):
raise EnvironmentError('OUTPUT_STREAM must be set before anything else!')
else:
print(output_stream_name)
`

its giving me error while doing chalice package . -

  File "/home/piyush/.local/lib/python3.6/site-packages/chalice/cli/factory.py", line 273, in load_chalice_app
    app = importlib.import_module('app')
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/piyush/Downloads/lambda-arc-events-filter/app.py", line 33, in <module>
    raise EnvironmentError('OUTPUT_STREAM must be set before anything else!')
OSError: OUTPUT_STREAM must be set before anything else!