Slicing syntax in Python is very flexible. Let’s look at a few more problems we can tackle with slicing.
Take the list fruits as our example:
If we want to select the first n elements of a list, we could use the following code:
For our fruits list, suppose we wanted to slice the first three elements.
The following code would start slicing from index 0 and up to index 3. Note that the fruit at index 3 (orange) is not included in the results.
Would output:
We can do something similar when we want to slice the last n elements in a list:
For our fruits list, suppose we wanted to slice the last two elements.
This code slices from the element at index -2 up through the last index.
Would output:
Negative indices can also accomplish taking all but n last elements of a list.
For our fruits example, suppose we wanted to slice all but the last element from the list.
This example starts counting from the 0 index up to the element at index -1.
Would output:
Let’s practice some of these extra slicing techniques!
Instructions
Create a new list called last_two_elements containing the final two elements of suitcase.
Print last_two_elements to see your result.
Create a new list called slice_off_last_three containing all but the last three elements.
Print slice_off_last_three to see your result.