通过文本输入创建列表列表

Question

I am attempting to create a list that contains lists that is read in from a .txt file. Preferably the inner list well be integers

I have created two variables created from the text file sink which is the first and raw which is a slice of the orginal text file from [1:]

example input from txt file

4,0,5,3,0,0,0,2,4,0,0,0,5,0,0,0,0

sink = 4

raw = ['0', '5', '3', '0', '0', '0', '2', '4', '0', '0', '0', '5', '0', '0', '0', '0']

The first number represents the division (4) and well change as the lists get larger or smaller. So I would want to create something like this g = [[0,5,3,0],[0,0,2,4],[0,0,0,5],[0,0,0,0]]

Apologies I deleted my attempts.

class Reader:
    #place holder for rawData
   rawData = []
   file = open("test4.txt")
   rawData = file.read()
   file.close()     
   rawData = rawData.split(',')

r = Reader()
sink = int(r.rawData[0])
source = 0 #(this is for calculations in other parts of the program)
raw = r.rawData[1:]

Answer 1

Assuming that the length of raw will always be divisible by sink this will get you what you need!

sink = 4
raw = ['0', '5', '3', '0', '0', '0', '2', '4', '0', '0', '0', '5', '0', '0', '0', '0']

g = [raw[i:i+sink] for i in range(0, len(raw), sink)]

print(g)

If you prefer it not in a comprehension then this would be the loop:

sink = 4
raw = ['0', '5', '3', '0', '0', '0', '2', '4', '0', '0', '0', '5', '0', '0', '0', '0']

g = []
for i in range(0, len(raw), sink):
    g.append(raw[i:i+sink])

print(g)