Modulus Fun

data = {
     1: 'test_a',
     2: 'test_b',
     3: 'test_c',
     4: 'test_d',
     5: 'test_e',
     6: 'test_f'
}

rows = []
row = []

for i, (key, item) in zip(range(1,7), data.items()):
     row.append(item)
     if i % 3 == 0:
         print(i)
         rows.append(row)
     row = []

print(rows)