将元素为多个列表的列表元素进行转置、去重处理

 

 

>>> a
[['0068', '20160823', '571', '698038', 0, 0, 0, 0, 0, 0, 0], ['0068', '20160823', '571', '698039', 0, 0, 0, 0, 0, 0, 0], ['0068', '20160823', '571', '698040', 0, 0, 0, 0, 0, 0, 0], ['0068', '20160823', '571', '698041', 0, 0, 0, 0, 0, 0, 0], ['0068', '20160823', '571', '698042', 0, 0, 0, 0, 0, 0, 0], ['0068', '20160823', '571', '698043', 0, 0, 0, 0, 0, 0, 0]]
>>> len(a)
6>>> zip(*a)
[('0068', '0068', '0068', '0068', '0068', '0068'), ('20160823', '20160823', '20160823', '20160823', '20160823', '20160823'), ('571', '571', '571', '571', '571', '571'), ('698038', '698039', '698040', '698041', '698042', '698043'), (0, 0, 0, 0, 0, 0), (0, 0, 0, 0, 0, 0), (0, 0, 0, 0, 0, 0), (0, 0, 0, 0, 0, 0), (0, 0, 0, 0, 0, 0), (0, 0, 0, 0, 0, 0), (0, 0, 0, 0, 0, 0)]
>>> set(zip(*a))
set([(0, 0, 0, 0, 0, 0), ('0068', '0068', '0068', '0068', '0068', '0068'), ('20160823', '20160823', '20160823', '20160823', '20160823', '20160823'), ('571', '571', '571', '571', '571', '571'), ('698038', '698039', '698040', '698041', '698042', '698043')])
>>> m=map(set,zip(*a))
>>> m
[set(['0068']), set(['20160823']), set(['571']), set(['698038', '698039', '698043', '698042', '698041', '698040']), set([0]), set([0]), set([0]), set([0]), set([0]), set([0]), set([0])]
>>> map(list,m)
[['0068'], ['20160823'], ['571'], ['698038', '698039', '698043', '698042', '698041', '698040'], [0], [0], [0], [0], [0], [0], [0]]
>>> len(map(list,m))
11
>>> ii= map(list,m)
>>> ii
[['0068'], ['20160823'], ['571'], ['698038', '698039', '698043', '698042', '698041', '698040'], [0], [0], [0], [0], [0], [0], [0]]
>>> ii.count([0])
7
>>>