Why does "set(a) and set(b)" vs "set(a) & set(b)" give different results in python?

I understand that one is bitwise operation while the other is not, but how does this bitwise property affect the results of given expression. As both should simply compare the elements in both sets and result in common elements. set(a) & set(b) gives the correct answer while finding common elements in set(a) and set(b), while… Read More Why does "set(a) and set(b)" vs "set(a) & set(b)" give different results in python?

Preserve list order that comes from the intersection of more than two lists

I have the following dictionary di = { ‘A’: [[‘A1’, ‘A1a’], [‘A1’, ‘A1a’], [‘A1’, ‘A1a’], [‘A1’, ‘A1a’], [‘A1’, ‘A1a’]], ‘B’: [[‘A1’, ‘BT’, ‘B2’, ‘B2a’, ‘B2a1a’]], ‘G’: [[‘A1’, ‘BT’, ‘CT0’, ‘CF’, ‘F5’, ‘GHIJK’, ‘G4’, ‘G21’, ‘G2a’, ‘G2a2b’, ‘G2a2b2b’, ‘G2a2b2b1a’], [‘A1’, ‘BT’, ‘CT0’, ‘CF’, ‘F5’, ‘GHIJK’, ‘G4’, ‘G21’, ‘G2a’], [‘A1’, ‘BT’, ‘CT0’, ‘CF’, ‘F5’, ‘GHIJK’, ‘G4’, ‘G21’,… Read More Preserve list order that comes from the intersection of more than two lists