Check if statement true for all list items [duplicate]

I have the following dictionary:

    dictionary = {'A':0, 'B':0, 'C':0, 'D':0}

I would like to check if all the values stored by the dictionary keys are zero and then execute some code. What I had in mind is something like:

    if (dictionary[k] == 0 for all k in dictionary.keys()):
        # do something

What I am currently doing is:

  if (dictionary['A'] == 0 and dictionary['B'] == 0 and dictionary['C'] == 0 and dictionary['D'] == 0):
      # do something

This seems very inefficient if my dictionary grows larger. Is there any way I could check a condition for all keys and demand all of them to be simultaneously true?