dynamically declare/create lists in python [closed]

Answer 1

You can not achieve this in Python. The way recommended is to use a list to store the four list you want:

>>> depth = [[]]*4
>>> depth
[[], [], [], []]

Or use tricks like globals and locals. But don't do that. This is not a good choice:

>>> for i in range(4):
...     globals()['depth_{}'.format(i)] = []
>>> depth_1
[]