How to check dictionary without values

Question

I declared this dictionary:

person ={'name':[],'age':[], 'adress':[]}

Is there a function that allows to check if it has values or not?
For example:

person = { 'name':[], 'age':[], 'adress':[] }

--> returns empty and if

 person = { 'name':['Paul'], 'age':[25], 'adress':['xxxxx'] }

--> returns not empty

Does this answer your question? [How do I check if a list is empty?](https://stackoverflow.com/questions/53513/how-do-i-check-if-a-list-is-empty) — Viewed, Jun 06 '20 at 20:15
Also, you are using `=` when you should be using `==` to test the equality of two values — Sam, Jun 06 '20 at 20:18
What should happen if dictionary values are partially empty (for example there is name and address but no age)? — Aivar Paalberg, Jun 06 '20 at 20:26
@AivarPaalberg it doesn't matter I just want to check if there is value — kloud, Jun 06 '20 at 20:29

score 2 · Answer 1 · answered Jun 06 '20 at 20:44

2

You can do like this:

if all(person.values()):
    # not empty lists
elif not any(person.values()):
    # all empty
else:
    # some empty

answered Jun 06 '20 at 20:44

mguijarr

7,641
6
45
72

Vinicius Nogueira · Answer 2 · 2020-06-06T21:21:37.373

1

I think that this is a solution for you, Regards

person = { 'name':[], 'age':[], 'adress':[] }

#Logical array
#True: empty fields
#False: Non empty fields
field_empty_list=[]
for field in person.keys():
    field_empty_list.append(not person[field])

# If any field is empty
any_field_is_empty = any(field_empty_list)

# If all keys are empty
all_fields_is_empty = all(field_empty_list)

edited Jun 06 '20 at 21:21

answered Jun 06 '20 at 21:16

Vinicius Nogueira

49
9

score 0 · Accepted Answer · answered Jun 06 '20 at 20:41

A list will be considered truthy iff it's non-empty. That is,

if []:
    print('Yes')
else:
    print('No')

outputs No.

There's also the builtin function any which takes an iterable as an argument and returns True if any of the produced values are truthy. Therefore, if you want to know if any of the lists contain any values, you could do

any(person.values())

How to check dictionary without values

3 Answers3