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?
>>> 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.
Not lists, but close:
>>> zip([1, 2, 5])
[(1,), (2,), (5,)]
Why not simply:
>>> [ [e] for e in [1, 2, 3] ]
[[1], [2], [3]]
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.
appendimplies the list already exists. Is that the case?