Selecting a Portion of a Tuple with Slicing

Just like lists, tuples allow you to extract consecutive elements using slicing.

To slice a tuple, use square brackets ([]) with the start index and end index separated by a colon (:), written as [start_index:end_index].

The start index is included in the extraction, whereas the end index is not.

Let's look at an example.

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my_tuple = (1, 2, 3, 4, 5, 6)

# Slicing from the 2nd to the 4th element
slice_tuple = my_tuple[1:4]
# Excludes the 5th element, my_tuple[4]

# Outputs: (2, 3, 4)
print(slice_tuple)

my_tuple[1:4] slices from the second element (index 1) to the fourth element (index 3).

The fifth element of my_tuple, my_tuple(4), is not included in the extraction through slicing.

Omitting the start index begins the slice at the first element.

Omitting the end index slices the tuple up to the last element.

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my_tuple = (1, 2, 3, 4, 5, 6)

# From the beginning to the third element, my_tuple[2]
beginning_slice = my_tuple[:3]

# Outputs: (1, 2, 3)
print(beginning_slice)

# From the fourth element, my_tuple[3], to the end
end_slice = my_tuple[3:]

# Outputs: (4, 5, 6)
print(end_slice)

With negative indices, you can start slicing from the end of the tuple.

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# Slicing from the third-to-last element to the end
negative_slice = my_tuple[-3:]

# Outputs: (4, 5, 6)
print(negative_slice)