Checking for key and value in python dictionary

I need to check if key exists in Python dictionary and value of that is not null/empty for multiple keys before processing further.

exception = False

if 'key1' in d and d['key1']:
    pass
else:
    exception = True

if 'key2' in d and d['key2']:
    pass
else:
    exception = True

if 'key3' in d and d['key3']:
    pass
else:
    exception = True

if not exception:
    #Process it

I feel this code is very ugly and not Pythonic as well.

Can we write the logic better?

>Solution :

You can use all and a generator:

if all(k in d and d[k] for k in ['key1', 'key2', 'key3']):
    pass
else:
    exception = True

You could actually skip using a flag:

if not all(k in d and d[k] for k in ['key1', 'key2', 'key3']):
    # process

or

if any(k not in d or not d[k] for k in ['key1', 'key2', 'key3']):
    # process