Python transpose dictionary

I have

data_dict = {1: {'One': 110, 'Two': 210, 'three': 310},             2: {'One': 120, 'Two': 220, 'three': 320},             3: {'One': 130, 'Two': 230, 'three': 330}}

need to print as CSV in this order

'',1,2,3One,110,120,130Two,210,220,230Three,310,320,330

No idea how to do it spent hours trying totally exhausted.I need pure python solution without using Numpy Transpose, Itertools etc