如何确定我列表中的所有变量在python 3中彼此相同

Question

I am making this program where I am checking if the user gets a yahtzee or not and I want to check if all the variables are the same either 1,2,3,4,5,6 and I don't want to make 6 different lists. Is there any easy way to check?

Answer 1

Did you try something like the following already? Ie essentially if they're all the same then they're also all the same as the first (index 0) element.

vals = [1, 1, 1, 1, 1]
same = all( [ v == vals[0] for v in vals] )
print(same)

outputs

True

while

vals = [1, 2, 1, 2, 1]
same = all( [ v == vals[0] for v in vals] )
print(same)

outputs

False

Answer 2

You could use a set for this as follows:

vals = [1, 1, 1, 1, 1, 1]

if len(vals) == 6 and len(set(vals)) == 1:
    print "yahtzee"

First check for the correct number of values (if required), then convert them to a set. If they are all the same, the length of the set will be 1.