Track 6 · Lesson 3 of 12

Slicing: taking part of a list

Take ranges of items with start:stop:step slices, copy lists with [:], and reverse with [::-1].

You will be able to

• Write slices with start, stop and step, including omitted and negative values
• Explain why the stop index is excluded and why slices never raise IndexError
• Copy a list with a slice and reverse it with a negative step
• Use slices to split data into pages, windows and halves