Question

I’m writing a huge code and one of the little things I need it to do is go over a text file that is divided to different lines.
i need it to create a new list of lines every time the line is empty. for example if the text is: (each number is a new line)

1
2
3
4

5
6
3

1
2

it should build 3 different lists: [1,2,3,4], [5,6,3], [1,2]

this is my code so far (just getting started):

    new_list=[]
    my_list=[]
    doc=open(filename, "r")
    for line in doc:
            line=line.rstrip()
            if line !="":
                    new_list.append(line)
    return new_list

Answer 1

Ok, This should work now:

initial_list, temp_list = [], []
for line in open(filename):
    if line.strip() == '':
        initial_list.append(temp_list)
        temp_list = []
    else: temp_list.append(line.strip())
if len(temp_list) > 0: initial_list.append(temp_list)
final_list = [item for item in initial_list if len(item) > 0]
print final_list