*Memo:
- My post explains a tuple (1).
- My post explains a tuple (2).
- My post explains a tuple (3).
- My post explains a tuple (4).
- My post explains a tuple (6).
A tuple can be read by slicing as shown below:
*Memo:
- Slicing can be done with one or more
[start:end:step]in the range[start, end):-
start(Optional-Default:None-Type:int/NoneType):- It's a start index(inclusive).
- If it's
None, it's the 1st index. - Don't use
start=.
-
end(Optional-Default:None-Type:int/NoneType):- It's an end index(exclusive).
- If it's
None, it's the tuple length. - Don't use
end=.
-
step(Optional-Default:None-Type:int/NoneType):- It's the interval of indices.
- If it's
None, it's1. - It cannot be zero.
- Don't use
end=.
- The
[]with at least one:is slicing. -
startandendcan be signed indices(zero and positive and negative indices). - Error doesn't occur even if
[start, end)is out of the range[The 1st index, The tuple length). -
[index][slice]can be used.
-
<1D tuple>:
v = ('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H') print(v[:]) print(v[::]) print(v[None:None:None]) print(v[0:8:1]) print(v[-8:8:1]) print(v[-100:100:1]) # ('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H') print(v[::2]) # ('A', 'C', 'E', 'G') print(v[::-2]) # ('H', 'F', 'D', 'B') print(v[2:]) print(v[-6:]) print(v[2::]) print(v[-6::]) # ('C', 'D', 'E', 'F', 'G', 'H') print(v[2::2]) print(v[-6::2]) # ('C', 'E', 'G') print(v[2::-2]) print(v[-6::-2]) # ('C', 'A') print(v[:6]) print(v[:-2]) print(v[:6:]) print(v[:-2:]) # ('A', 'B', 'C', 'D', 'E', 'F') print(v[:6:2]) print(v[:-2:2]) # ('A', 'C', 'E') print(v[:6:-2]) print(v[:-2:-2]) # ('H',) print(v[2:6]) print(v[-6:-2]) print(v[2:6:]) print(v[-6:-2:]) # ('C', 'D', 'E', 'F') print(v[2:6:2]) print(v[-6:-2:2]) # ('C', 'E') print(v[2:6:-2]) print(v[-6:-2:-2]) # () <2D tuple>:
v = (('A', 'B', 'C', 'D'), ('E', 'F', 'G', 'H')) print(v[:]) print(v[::]) print(v[:][:]) print(v[::][::]) # (('A', 'B', 'C', 'D'), ('E', 'F', 'G', 'H')) print(v[0][:]) print(v[0][::]) print(v[-2][:]) print(v[-2][::]) # ('A', 'B', 'C', 'D') print(v[0][::2]) print(v[-2][::2]) # ('A', 'C') print(v[0][::-2]) print(v[-2][::-2]) # ('D', 'B') print(v[1][:]) print(v[1][::]) print(v[-1][:]) print(v[-1][::]) # ('E', 'F', 'G', 'H') print(v[1][::2]) print(v[-1][::2]) # ('E', 'G') print(v[1][::-2]) print(v[-1][::-2]) # ('H', 'F') <3D tuple>:
v = ((('A', 'B'), ('C', 'D')), (('E', 'F'), ('G', 'H'))) print(v[:]) print(v[::]) print(v[:][:]) print(v[::][::]) print(v[:][:][:]) print(v[::][::][::]) # ((('A', 'B'), ('C', 'D')), (('E', 'F'), ('G', 'H'))) print(v[0][:]) print(v[0][::]) print(v[-2][:]) print(v[-2][::]) # (('A', 'B'), ('C', 'D')) print(v[1][:]) print(v[1][::]) print(v[-1][:]) print(v[-1][::]) # (('E', 'F'), ('G', 'H')) print(v[0][0][:]) print(v[0][0][::]) print(v[-2][-2][:]) print(v[-2][-2][::]) # ('A', 'B') print(v[0][0][::2]) print(v[-2][-2][::2]) # ('A',) print(v[0][0][::-2]) print(v[-2][-2][::-2]) # ('B',) print(v[0][1][:]) print(v[0][1][::]) print(v[-2][-1][:]) print(v[-2][-1][::]) # ('C', 'D') print(v[0][1][::2]) print(v[-2][-1][::2]) # ('C',) print(v[0][1][::-2]) print(v[-2][-1][::-2]) # ('D',) print(v[1][0][:]) print(v[1][0][::]) print(v[-1][-2][:]) print(v[-1][-2][::]) # ('E', 'F') print(v[1][0][::2]) print(v[-1][-2][::2]) # ('E',) print(v[1][0][::-2]) print(v[-1][-2][::-2]) # ('F',) print(v[1][1][:]) print(v[1][1][::]) print(v[-1][-1][:]) print(v[-1][-1][::]) # ('G', 'H') print(v[1][1][::2]) print(v[-1][-1][::2]) # ('G',) print(v[1][1][::-2]) print(v[-1][-1][::-2]) # ('H',) 
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