Search substring in list of dictionaries of namedtuples keyed with an event type

I have created a list of dictionaries of named tuples, keyed with an event type.

[{'EVENT_DELETE': DeleteRequestDetails(rid=53421, user='user1', type='EVENT_DELETE', reviewed=1, approved=1, completed=0)},{'EVENT_DELETE': DeleteRequestDetails(rid=13423, user='user2', type='EVENT_DELETE', reviewed=1, approved=1, completed=0)},{'EVENT_DELETE': DeleteRequestDetails(rid=98343, user='user2', type='EVENT_DELETE', reviewed=1, approved=0, completed=0)}]

What would be the most pythonic method to return/print results that only contain “approved=1”, or “reviewed=1” and “approved=0”?

Answer

Not sure what output format you want exactly, but here’s a demo for approved == 1.

>>> from collections import namedtuple
>>> DeleteRequestDetails = namedtuple('DeleteRequestDetails', 'rid user type reviewed approved completed')
>>> lst = [{'EVENT_DELETE': DeleteRequestDetails(rid=53421, user='user1', type='EVENT_DELETE', reviewed=1, approved=1, completed=0)},{'EVENT_DELETE': DeleteRequestDetails(rid=13423, user='user2', type='EVENT_DELETE', reviewed=1, approved=1, completed=0)},{'EVENT_DELETE': DeleteRequestDetails(rid=98343, user='user2', type='EVENT_DELETE', reviewed=1, approved=0, completed=0)}]
>>> [v for d in lst for v in d.values() if v.approved == 1] 
[DeleteRequestDetails(rid=53421, user='user1', type='EVENT_DELETE', reviewed=1, approved=1, completed=0),
 DeleteRequestDetails(rid=13423, user='user2', type='EVENT_DELETE', reviewed=1, approved=1, completed=0)]