code: def write_url(self, url, filename, directory=None):
          
          return self.write_contents(filename, read(url), directory=directory)
docs: write_url: Write contents from url to filename in zip
              Args:
                  url: (str) url to file to download
                  filename: (str) name of file in zip
                  directory: (str) directory in zipfile to write file to (optional)
              Returns: path to file in zip