How to check if a value is in a dictionary python

Question

Problem:

Hi all, I am trying to figure out the dictionary related problems in python. Dictionary is really fun to learn and work with. Let’s say, I have a dictionary

dict = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}

If I’ve needed to check every value inside the dictionary what can I do for that? So, I want to know how to check if a value is in a dictionary python?

Answer 1

You can use either dict.values() or dict.get() you want. The dict.values() function returns a boolean type answer. On the other hand, the .get(key) function returns none if the key is not available in the dictionary.

Let’s check with your given dictionary

>>> dict = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>> 'five' in dict.values()
True

 and

>>> dict = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>> dict.get('5')
'five'

I guess these sample codes snippet will make you feel understood.
For better understandings check THIS.

Thanks.