Q = [[8.85008011807927, 4.129896248976861, 5.556804136197901], [
    8.047707185696948, 7.140707521433818, 7.150610818529693], [
    7.5326340018228555, 7.065307672838521, 6.862894377422498]]
minimum = min(i for j in Q for i in j)
print(minimum)
Understanding python policy for finding the minimum in a list of list