Python-对于每个for循环迭代，追加到其他列表中

Question

I have a for loop that is taking data and appending it into a list, but for each iteration of the for loop, I would like it to append into a different list. Is there any way to do this?

    value = []
    for i in list:
        value.append(i)

but I would like something such as

    for i, num in enumerate(list):
        value_i.append(num)

How could I go about doing this?

Answer 1

Not lists, but close:

>>> zip([1, 2, 5])
[(1,), (2,), (5,)]

Answer 2

>>> lst = [1,2,3,4]
>>> [list(x) for x in zip(lst)]
[[1], [2], [3], [4]]

Btw, you should not use list as the variable name.

Answer 3

Why not simply:

>>> [ [e] for e in [1, 2, 3] ]
[[1], [2], [3]]

Answer 4

Supposing you already have a collection of lists

my_lists = [list1, list2, list3, …, listN]

and a source list

my_sources = [val1, val2, val3, …, valN]

what you want is

for lst, src in zip(my_lists, my_sources):
    lst.append(src)

You could also do this by index:

for i in range(len(lst)):
    my_lists[i].append(my_sources[i])

The latter may seem less Pythonic, but it's pretty readable and probably more efficient than the zip approach.