Challenge 3

Challenge 3

Aim:

Learn about dictionaries and how to use them in Python.

Task 1: Learning Dictionaries

Task

Complete the

Udacity Intro to Python

⁠

chapter on

Dictionaries

⁠

.

Complete sections 37-40 from this

Scrimba course

⁠

.

Read the following article about return:

Python return statements

⁠

.

In particular, really focus on the use cases of when to use print vs when to use return

Task 2: HR Management System

Task

Create a new Repl on Repl.it named “L2 Challenge 3: Task 2”

Convert the below data into Python dictionaries.

You should add all of your dictionaries to a list called people

When you’ve added their data to a list of dictionaries complete the following tasks:

2. Iterate over the array of people and for each print their details to the console in a human readable way. For example:

Name: Jane DoeAge: 42Employed: Yes

3. Next, add an input prompt that will ask the user for what action they want to do

The input will accept two answers “Add” or “Remove”

4. If the user types “Add”, show inputs in the console in a row that will ask the user for their Name, Age and if they are Employed or not.

Create a new dictionary with the properties entered

Add the new person to people list

Print the updated list of people to the console.

5. If the user types “Remove”, show an input in the console asking which user should be deleted.

If the user types the name of an existing person then that person should be removed from the “people” list

e.g. if the user types “Jane” then Jane Doe will be removed from the “people” array

Print the updated list of people to the console.

6. Finally, show the input prompt from Step 2 again.

Can you work out a way to always keep on asking the user for their next input after each Add or Remove flow has been completed?

Hint!

Consider using a while loop.

Task 3: Numbers to Dictionaries

Task

On Repl.it, create a new Repl called ‘L2 Challenge 3: Task 3’.

Complete the CodeWars problem:

Numbers to Objects

⁠

(n.b. Objects are called Dictionaries in Python)

When you’ve completed the CodeWars, copy and paste your solution into your Repl

Hint!

Character codes are the codes that define text characters on computers

e.g. the character ‘a’ is the number 66 and the letter ‘d’ is the number 69

You can find the full list of numbers

here

⁠

⁠

The

ord()

⁠

function can help you convert one into the other