from numpy import array_split -> python

from numpy import array_split

def list_split(lst,indices_or_sections):
    lst_out=[]
    numb_of_part=len(lst)//indices_or_sections
    len_of_last_part=len(lst)%indices_or_sections
    for i in range(numb_of_part):
        lst_out.append(lst[i*indices_or_sections:i*indices_or_sections+indices_or_sections])
    if len(lst)%indices_or_sections != 0: 
        lst_out.append(lst[-len_of_last_part:])
    return (lst_out)
                  
 
lt=[1,2,3,4,5,6,7,8,9,10,11,12,13,14]
lt_out=list_split(lt,3)
print(lt_out)

[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12], [13, 14]]

>>> def f(l,n):
    out = []
    while l:
        out.append(l[:n])
        l = l[n:]
    return out
 
>>> l = list(range(20))
>>> f(l,3)
[[0, 1, 2], [3, 4, 5], [6, 7, 8], [9, 10, 11], [12, 13, 14], [15, 16, 17], [18, 19]]
>>>

l = l[n:]

>>> l = list(range(20))
>>> def f(l,n):
    count = 0
    out = []
    while True:
        tmp = l[count:n+count]
        if not tmp: return out
        count += n
        out.append(tmp)
        
>>> f(l,3)
[[0, 1, 2], [3, 4, 5], [6, 7, 8], [9, 10, 11], [12, 13, 14], [15, 16, 17], [18, 19]]
>>> l
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
>>>

>> l = list(range(20))
>>> n = 3
>>> [l[i:i+n] for i in range(0,len(l),n)]
[[0, 1, 2], [3, 4, 5], [6, 7, 8], [9, 10, 11], [12, 13, 14], [15, 16, 17], [18, 19]]