class_docstr: The main 'connection' object for PickleShare database 
class_docstr_tok: ["The","main","'connection","'","object","for","PickleShare","database"]
code: def __iter__(self):
      return iter(self.keys())
  
imports: from __future__ import print_function
  import os, stat, time
  import errno
  import sys
label_desc: Use image node_id 11 for calling the PickleShareDB obj's underlying member method code with example usage: obj.__iter__() and returns: iter