old_contents: import io
  from flask import request, send_file, make_response
  from wechat_sdk import WechatBasic
  
  from wechat_app import app, redis_store, wechat_conf
  
  import wechat_message_handler
  
  __author__ = 'guoyong'
  
  
  @app.route('/wx', methods=['GET', 'POST'])
  def handle_wechat_msg():
  
      app.logger.info('handle_wechat_msg')
  
      wechat = WechatBasic(conf=wechat_conf)
  
      handler_name = '%s_handler' % request.method.lower()
      dispatch_method = getattr(wechat_message_handler, handler_name)
  
      return dispatch_method(request, wechat)
  
  
  @app.route('/apod.jpg', methods=['GET'])
  def apod_image():
  
      key = '%s:image' % app.config['APOD_CACHE_KEY']
      apod_image = redis_store.get(key)
  
      if not apod_image:
          return 'APOD Not Found', 404
  
      response = make_response(apod_image)
      response.headers['Content-Type'] = 'image/jpeg'
      # response.headers['Content-Disposition'] = 'attachment; filename=apod.jpg'
      return response
      # return send_file(io.BytesIO(apod_image))
  
  
  @app.route('/')
  def index():
      return 'hello, world'
  
new_contents: from flask import request, make_response
  from wechat_sdk import WechatBasic
  
  from wechat_app import app, redis_store, wechat_conf
  
  import wechat_message_handler
  
  __author__ = 'guoyong'
  
  
  @app.route('/wx', methods=['GET', 'POST'])
  def handle_wechat_msg():
  
      app.logger.info('handle_wechat_msg')
  
      wechat = WechatBasic(conf=wechat_conf)
  
      handler_name = '%s_handler' % request.method.lower()
      dispatch_method = getattr(wechat_message_handler, handler_name)
  
      return dispatch_method(request, wechat)
  
  
  @app.route('/apod.jpg', methods=['GET'])
  def apod_image():
  
      key = '%s:image' % app.config['APOD_CACHE_KEY']
      apod_image = redis_store.get(key)
  
      if not apod_image:
          return 'APOD Not Found', 404
  
      response = make_response(apod_image)
      response.headers['Content-Type'] = 'image/jpeg'
      return response
  
  
  @app.route('/')
  def index():
      return 'hello, world'
  
subject: remove unused imports