Retaining order while using Python's set difference

Question

I\'m doing a set difference operation in Python:

x = [1, 5, 3, 4]
y = [3]

result = list(set(x) - set(y))
print(result)

I\'m getting:

Answer 1

You could just do this

diff = set(x) - set(y)
[item for item in x if item in diff]

or

filter(diff.__contains__, x)