Get_Key_from_Dict_by_List_Comprehension.py

>>> # Soultion 1
...
>>> data = {
...     "id-1": {
...             "p": "w",
...             "t": "foo",
...             "b": "f"
...     },
...     "id-2": {
...             "p": "w",
...             "t": "bar",
...             "b": "c"
...     },
...     "id-3": {
...             "p": "m",
...             "t": "bar",
...             "b": "f"
...     }
... }
>>>
>>> [k for k, v in data.items() if v.get('p') == 'w']
['id-1', 'id-2']
>>> [k for k, v in data.items() if v.get('p') == 'm']
['id-3']
>>> [k for k, v in data.items() if v.get('t') == 'foo']
['id-1']
>>> [k for k, v in data.items() if v.get('p') == 'w' and v.get('b') == 'f']
['id-1']
>>>
>>>
>>> # Soultion 2
...
>>>
>>> list_data = {
...     "id-1": ["w", "foo", "f"],
...     "id-2": ["w", "bar", "c"],
...     "id-3": ["m", "bar", "f"]
... }
>>> [k for k, v in list_data.items() if 'w' in v]
['id-1', 'id-2']
>>> [k for k, v in list_data.items() if 'w' in v and 'bar' in v]
['id-2']
>>>