Search in sub sets of set which are lists

Question

I am given:

list = [{'a','b'},{'c','d'}]

and I want to know if 'a' is in the list.

should I first unpack the list as here to new_list and the use 'a' in new_list

Or is there a shorter way (without importing modules)

Answer 1

use any

spam = [{'a','b'},{'c','d'}]
eggs = [{'d','b'},{'c','d'}]

print(any('a' in my_set for my_set in spam))
print(any('a' in my_set for my_set in eggs))

Output

True
False
>>>

Answer 2

This is one approach using any.

Ex:

l = [{'a','b'},{'c','d'}]
print( any(map(lambda x: "a" in x, l)) )

Output:

True

Answer 3

Hope it's solve it. I write it on a function to use "return" keyword

def a_is_there():

    lists = [{'a','b'},{'c','d'}]
    for list in lists:
        if "a" in list:
            print("True")
            return True
    print("False")
    return False


a_is_there()

Thanks