how to get keys from nested dictionary python code example

Example 1: extract specific key values from nested dictionary

>>> [val.get('phone') for val in people.values()]
['4563', '9102', '2341']

Example 2: extract specific key values from nested dictionary

l = []
for person in people:
    l.append(people[person]['phone'])

>>> l
['9102', '2341', '4563']