old_contents: 
  class WebAdapter:
      pass
  
new_contents: 
  import urllib.request
  
  
  class WebAdapter:
      def get(self, urllike):
          url = self.mk_url(urllike)
          try:
              res = urllib.request.urlopen(url)
              return res.read()
          except Exception as e:
              raise e
  
      def open(self, urllike):
          url = self.mk_url(urllike)
          try:
              return urllib.request.urlopen(url)
          except Exception as e:
              raise e
  
      def mk_url(self, urllike):
          return str(urllike)
  
subject: Implement webadapter