a_dictionary = {"a": 1, "b": 2, "c": 3}
# get key with min value
min_key = min(a_dictionary, key=a_dictionary.get)
print(min_key)
# print output => "a"
# works with multiple equal minimal values
minval = min(d.values())
res = list(filter(lambda x: d[x]==minval, d))
# Works also with multiple equal minimum values
res = list(filter(lambda x: d[x]==minval, d))