old_contents: import logging
  
  from celery import Celery
  from flask import Flask, request, Response
  from lintreview.config import load_settings
  from lintreview.github import get_client, get_lintrc
  from lintreview.tasks import process_pull_request
  
  app = Flask('lintreview')
  
  app.config.from_object(load_settings())
  
  log = logging.getLogger(__name__)
  celery = Celery('lintreview.tasks')
  
  
  @app.route('/ping')
  def ping():
      return 'pong\n'
  
  
  @app.route('/review/start', methods=['POST'])
  def start_review():
      action = request.json["action"]
      pull_request = request.json["pull_request"]
      number = pull_request["number"]
      base_repo_url = pull_request["base"]["repo"]["git_url"]
      head_repo_url = pull_request["head"]["repo"]["git_url"]
      user = pull_request['base']['repo']['owner']['login']
      repo = pull_request['base']['repo']['name']
  
      log.debug("Received GitHub pull request notification for "
                "%s %s, (%s) from: %s",
                base_repo_url, number, action, head_repo_url)
  
      if action not in ("opened", "synchronize"):
          log.info("Ignored '%s' action." % action)
          return Response(status=204)
      gh = get_client(app.config, user, repo)
      try:
          lintrc = get_lintrc(gh)
      except:
          log.warn("Cannot download .lintrc file for '%s', "
                   "skipping lint checks.", base_repo_url)
          return Response(status=204)
      try:
          process_pull_request.delay(user, repo, pull_request['number'], lintrc)
      except:
          log.error('Could not publish job to celery. Make sure its running')
          return Response(status=500)
      return Response(status=204)
  
new_contents: import logging
  
  from celery import Celery
  from flask import Flask, request, Response
  from lintreview.utils.config import load_settings
  from lintreview.github import get_client, get_lintrc
  from lintreview.tasks import process_pull_request
  
  app = Flask('lintreview')
  
  app.config.from_object(load_settings())
  
  log = logging.getLogger(__name__)
  celery = Celery('lintreview.tasks')
  
  
  @app.route('/ping')
  def ping():
      return 'pong\n'
  
  
  @app.route('/review/start', methods=['POST'])
  def start_review():
      action = request.json["action"]
      pull_request = request.json["pull_request"]
      number = pull_request["number"]
      base_repo_url = pull_request["base"]["repo"]["git_url"]
      head_repo_url = pull_request["head"]["repo"]["git_url"]
      user = pull_request['base']['repo']['owner']['login']
      repo = pull_request['base']['repo']['name']
  
      log.debug("Received GitHub pull request notification for "
                "%s %s, (%s) from: %s",
                base_repo_url, number, action, head_repo_url)
  
      if action not in ("opened", "synchronize"):
          log.info("Ignored '%s' action." % action)
          return Response(status=204)
      gh = get_client(app.config, user, repo)
      try:
          lintrc = get_lintrc(gh)
      except:
          log.warn("Cannot download .lintrc file for '%s', "
                   "skipping lint checks.", base_repo_url)
          return Response(status=204)
      try:
          process_pull_request.delay(user, repo, pull_request['number'], lintrc)
      except:
          log.error('Could not publish job to celery. Make sure its running')
          return Response(status=500)
      return Response(status=204)
  
subject: Fix import error.