ran slicing

Range slicing typically refers to extracting a portion (a range) of elements from a sequence, such as a list or a string, based on indices. In Python, you can use the slice notation to achieve range slicing. The syntax for slicing is as follows:

pythonCopy codesequence[start:stop:step]

• start: The index of the first element you want to include in the slice (inclusive).
• stop: The index of the first element you don't want to include in the slice (exclusive).
• step: The step or stride between elements in the slice. It is optional and defaults to 1.

Here's an example with a list:

pythonCopy codemy_list = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
slice_result = my_list[2:7] # This will extract elements at indices 2, 3, 4, 5, and 6
print(slice_result)

The output will be:

pythonCopy code[2, 3, 4, 5, 6]

In this example, my_list[2:7] extracts a slice starting from index 2 (inclusive) up to index 7 (exclusive).

You can also use negative indices for reverse slicing:

pythonCopy codereverse_slice = my_list[-5:-2] # This will extract elements at indices -5, -4, and -3
print(reverse_slice)

The output will be:

pythonCopy code[5, 6, 7]

Keep in mind that if you omit start, stop, or step in the slice notation, it will default to the entire sequence, and you can use negative indices to count from the end of the sequence.