（Python）将列表中的项目转换为列表

Question

I want to store items in my list as list themselves (ie each binary bit will be an index in the new list) but I can't seem to make that happen:

encoded = []
for value in redChannelData:
    encoded1 = bin(value)[2:]
    encoded.append(encoded1)

redchannelbinarylist = [[] for binary in encoded] 

print(redchannelbinarylist)
print(encoded)

Output

['101110', '110001', '110010', '110011', '110101', '110101', '110110', '111000', '111011', '111011', '111100', '111101', '111110', '111110', '1000000', '1000000', '1000001']

I want something like this:

[[1, 0, 1, 1, 1, 0], [1, 1, 0, 0, 0, 1], ...]

Answer 1

Try doing this:

[list(map(int, x)) for x in a]

Here is what happens (from inside out):

• list(map(int, x)) converts a list of '0' and '1' into a list of their integer equivalents. The list here is to get a list instead of map result.
• In the outer list comprehension I do the above step for each element of a

Answer 2

try doing this:

a = ['101110', '110001', '110010', '110011', '110101', '110101', '110110',...]
result = []
for i in range(len(a)):
    ls = []
    for k in range(len(a[i])):
        ls.append(a[i][k])
    result.append(ls)

print(result)

this method is a bit longer, but the logic is easy to understand.