Is there a way to get the original/consistent list of keys from defaultdict even when non existing keys were requested?
from collections import defaultdict
>>> d = defaultdict(lambda: 'default', {'key1': 'value1', 'key2' :'value2'})
>>>
>>> d.keys()
['key2', 'key1']
>>> d['bla']
'default'
>>> d.keys() # how to get the same: ['key2', 'key1']
['key2', 'key1', 'bla']
default_factory() is a callable and need not return the same value each time!
>>> from collections import defaultdict
>>> from random import random
>>> d = defaultdict(lambda: random())
>>> d[1]
0.7411252345322932
>>> d[2]
0.09672701444816645
>>> d.keys()
dict_keys([1, 2])
>>> d.default_factory()
0.06277993247659297
>>> d.default_factory()
0.4388136209046052
>>> d.keys()
dict_keys([1, 2])
>>> [k for k in d.keys() if d[k] != d.default_factory()]
[1, 2]