Comparing each element between 2 sets?

Question

I'm trying to compare 2 sets of data

set1 = [a,b,c,d,e,f] set2 = [a,c,e]

How would I go about finding out which variable from set2 are in set1 then output this to another set showing the results?

Answer 1

Use intersection:

set2.intersection(set1)

Or set(set2).intersection(set1) if you actually have a list.

Based on your comment maybe a dict where the values are booleans based on whether each element from set1 is in the intersection set:

set1 = ["a","b","c","d","e","f"]
set2 = ["a","c","e"]

inter = set(set2).intersection(set1)

vals = {k:k in inter for k in set1}

print(vals)
{'a': True, 'c': True, 'b': False, 'e': True, 'd': False, 'f': False}

If all you want is a mapping then maybe creating a set from set2 is sufficient:

set1 = ["a","b","c","d","e","f"]
set2 = ["a","c","e"]

st2 = set(set2)

vals = {k: k in st2 for k in set1}

Or to get two sets, for the common and different elements:

st2 = set(set2)

inter = st2.intersection(set1)

diff = st2.difference(set1)