blob: 341c0fc407e00cc2702bf1f8d8fd29e35ec08c26 (
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def flatten_list(list1):
result_list = []
if not list1: return result_list
stack = [list(list1)]
while stack:
c_num = stack.pop()
next = c_num.pop()
if c_num: stack.append(c_num)
if isinstance(next, list):
if next: stack.append(list(next))
else: result_list.append(next)
result_list.reverse()
return result_list
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