text: # Copyright 2020 Google LLC
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  """Python 3 entrypoint."""
  import importlib
  import os
  import sys
  
  # Add necessary directories to path.
  sys.path.append('python')
  sys.path.append('third_party')
  
  config_modules_path = os.path.join('config', 'modules')
  if os.path.exists(config_modules_path):
    sys.path.append(config_modules_path)
  
  gae_env = os.environ.get('GAE_ENV')
  if gae_env:
    import pkg_resources
    importlib.reload(pkg_resources)
  
    if gae_env != 'dev':
      import firebase_admin
      firebase_admin.initialize_app()
  
  try:
    # Run any module initialization code.
    import module_init
    module_init.appengine()
  except ImportError:
    pass
  
  import server
  app = server.app
  