python - check if all the values for different keys are the same

Question

I want to return true if all the values in dict for different keys is same else false:

for example:

this should return true:

{1: [1, 1, 1], 2: [1, 1, 1], 3: [1, 1, 1]}) 

this should return false.

{1: [1, 1, 1], 2: [1, 1, 1], 3: [1, 2, 1]}) 

I tried the following but it didnt work.

        # for i in range(len(votes_grid[0])):
        #     isTie = any(v == i for v in columnTable.values())
        #also tried
              isTie = all(v == i for v in columnTable.values())

question from:https://stackoverflow.com/questions/66056590/check-if-all-the-values-for-different-keys-are-the-same

Answer 1

Same as @sarartur but more efficient, because I'm not nesting .values() inside itself. That makes this O(n) rather than O(n**2)

pattern = list(columnTable.values())[0]
tie = all(value == pattern for value in columnTable.values())