Re: Is there a function that returns common elements in multiple lists

You can use sets 

On Tue, Jan 25, 2022 at 7:47 AM bnmng <benjamin@bnmng.com> wrote:

Hello,

Is there a built in function that compares two or more lists and returns elements common to all?

like this:

 
def in_both( list_a, list_b ):

list_c=[]
for value in list_a:

if value in list_b:

list_c.append(value)

return list_c

Or this:
def in_all(list_of_lists):
list_a = list_of_lists.pop(0)
list_b = []
for value in list_a:
in_all_lists = True
for each_list in list_of_lists:
if not value in each_list:
in_all_lists = False
if in_all_lists:
list_b.append(value)
return list_b

Thank you

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Oussama Chafiqui

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