How can i create a multidimensional list while iterating through a 1d list based upon some condition.
I am iterating over a 1d list and whenever i find a '\n' i should append the so created list with a new list, for example,
a = [1,2,3,4,5,'\n',6,7,8,9,0,'\n',3,45,6,7,2]
so I want it to be as,
new_list = [[1,2,3,4],[6,7,8,9,0],[3,45,6,7,2]]
how should i do it? Please help
def storeData(k): global dataList dlist =  for y in k: if y != '\n': dlist.append(y) else: break return dlist
This is what i have tried.
itertools.groupby would do the job (grouping by not being a linefeed):
import itertools a = [1,2,3,4,5,'\n',6,7,8,9,0,'\n',3,45,6,7,2] new_list = [list(x) for k,x in itertools.groupby(a,key=lambda x : x!='\n') if k] print(new_list)
We compare the key truth value to filter out the occurrences of
[[1, 2, 3, 4, 5], [6, 7, 8, 9, 0], [3, 45, 6, 7, 2]]