Review and Practice

Self-check

In this activity, you used lists to display different sequences of color names in the serial terminal.

• Were you able to use both methods – the easy way and the hard way?
• Were you able to create the script to display the color names?
• Were you able to modify and access the color list in your script?
• Lastly, do you understand how to create and access any list?

Questions

1. How does a script access the items in a list?
2. How are index items numbered?
3. What types of data can a list contain?
4. What does it mean for a list to be mutable?

Exercises

1. In list nlist = [’Ava’, ’Marco’, ’Jubal’, ’Maria’], which item has an index of 3?
2. If index = len(nlist) for the list: nlist = [’Ava’, ’Marco’, ’Jubal’, ’Maria’], what is the value of index?
3. How would you change the last item in the list, vlist = [1, 2, 3, 4, 6], to a 5?
4. How do you add an item to the end of a list?
5. What is the function of using the line clist.index(‘snake’) in a script?

Project

There’s an easy way and a hard way to cycle through items in a list. Using the variable city and the list name c, write the code for a 4-item list of cities with a while True loop that will print them the ‘easy’ way.