old_contents: # Webhooks for external integrations.
  
  from typing import Any, Dict
  
  import ujson
  from django.http import HttpRequest, HttpResponse
  from django.utils.translation import ugettext as _
  
  from zerver.decorator import api_key_only_webhook_view
  from zerver.lib.actions import check_send_stream_message
  from zerver.lib.request import REQ, has_request_variables
  from zerver.lib.response import json_error, json_success
  from zerver.models import UserProfile
  
  CODESHIP_SUBJECT_TEMPLATE = '{project_name}'
  CODESHIP_MESSAGE_TEMPLATE = '[Build]({build_url}) triggered by {committer} on {branch} branch {status}.'
  
  CODESHIP_DEFAULT_STATUS = 'has {status} status'
  CODESHIP_STATUS_MAPPER = {
      'testing': 'started',
      'error': 'failed',
      'success': 'succeeded',
  }
  
  
  @api_key_only_webhook_view('Codeship')
  @has_request_variables
  def api_codeship_webhook(request, user_profile, payload=REQ(argument_type='body'),
                           stream=REQ(default='codeship')):
      # type: (HttpRequest, UserProfile, Dict[str, Any], str) -> HttpResponse
      payload = payload['build']
      subject = get_subject_for_http_request(payload)
      body = get_body_for_http_request(payload)
  
      check_send_stream_message(user_profile, request.client, stream, subject, body)
      return json_success()
  
  
  def get_subject_for_http_request(payload: Dict[str, Any]) -> str:
      return CODESHIP_SUBJECT_TEMPLATE.format(project_name=payload['project_name'])
  
  
  def get_body_for_http_request(payload: Dict[str, Any]) -> str:
      return CODESHIP_MESSAGE_TEMPLATE.format(
          build_url=payload['build_url'],
          committer=payload['committer'],
          branch=payload['branch'],
          status=get_status_message(payload)
      )
  
  
  def get_status_message(payload: Dict[str, Any]) -> str:
      build_status = payload['status']
      return CODESHIP_STATUS_MAPPER.get(build_status, CODESHIP_DEFAULT_STATUS.format(status=build_status))
  
new_contents: # Webhooks for external integrations.
  
  from typing import Any, Dict
  
  import ujson
  from django.http import HttpRequest, HttpResponse
  from django.utils.translation import ugettext as _
  
  from zerver.decorator import api_key_only_webhook_view
  from zerver.lib.actions import check_send_stream_message
  from zerver.lib.request import REQ, has_request_variables
  from zerver.lib.response import json_error, json_success
  from zerver.models import UserProfile
  
  CODESHIP_SUBJECT_TEMPLATE = '{project_name}'
  CODESHIP_MESSAGE_TEMPLATE = '[Build]({build_url}) triggered by {committer} on {branch} branch {status}.'
  
  CODESHIP_DEFAULT_STATUS = 'has {status} status'
  CODESHIP_STATUS_MAPPER = {
      'testing': 'started',
      'error': 'failed',
      'success': 'succeeded',
  }
  
  
  @api_key_only_webhook_view('Codeship')
  @has_request_variables
  def api_codeship_webhook(request: HttpRequest, user_profile: UserProfile,
                           payload: Dict[str, Any]=REQ(argument_type='body'),
                           stream: str=REQ(default='codeship')) -> HttpResponse:
      payload = payload['build']
      subject = get_subject_for_http_request(payload)
      body = get_body_for_http_request(payload)
  
      check_send_stream_message(user_profile, request.client, stream, subject, body)
      return json_success()
  
  
  def get_subject_for_http_request(payload: Dict[str, Any]) -> str:
      return CODESHIP_SUBJECT_TEMPLATE.format(project_name=payload['project_name'])
  
  
  def get_body_for_http_request(payload: Dict[str, Any]) -> str:
      return CODESHIP_MESSAGE_TEMPLATE.format(
          build_url=payload['build_url'],
          committer=payload['committer'],
          branch=payload['branch'],
          status=get_status_message(payload)
      )
  
  
  def get_status_message(payload: Dict[str, Any]) -> str:
      build_status = payload['status']
      return CODESHIP_STATUS_MAPPER.get(build_status, CODESHIP_DEFAULT_STATUS.format(status=build_status))
  
subject: Use Python 3 type syntax in zerver/webhooks/codeship/view.py.