code: def get(self, remote, local=None):
          
          if isinstance(local, file_type):  # open file, leave open
              local_file = local
          elif local is None:  # return string
              local_file = buffer_type()
          else:  # path to file, open, write/close return None
              local_file = open(local, 'wb')
  
          self.conn.retrbinary("RETR %s" % remote, local_file.write)
  
          if isinstance(local, file_type):
              pass
          elif local is None:
              contents = local_file.getvalue()
              local_file.close()
              return contents
          else:
              local_file.close()
  
          return None
docs: Gets the file from FTP server
  
              local can be:
                  a file: opened for writing, left open
                  a string: path to output file
                  None: contents are returned