Building Dictionaries¶

In [46]:
fruit_scores = {
    'apple': '⭐️⭐️⭐️⭐️',
    'pear': '⭐️⭐️⭐️⭐️⭐️',
    'banana': '⭐️⭐️⭐️',
    'kumquat': '⭐️?'
}

while True:
    fruit = input('Fruit: ')
    if not fruit:
        break
    score = fruit_scores.get(fruit, '????')
    print(f'{fruit}: {score}')

Fruit: pear
pear: ⭐️⭐️⭐️⭐️⭐️
Fruit: peach
peach: ????
Fruit:

Key Ideas¶

  • Building dictionaries
    • zipping lists together
    • inverting 1-to-1 dictionaries
    • reading from CSV

👩🏼‍🎨 Room Assignments¶

You are helping to organize the next WICS Skillathon, where students can come hear various speakers in CS provide brief workshops on various tech skills.

You have a list of speakers and a list of available rooms. You want to pair up speakers with a room.

Write a function that takes a list of speakers and a list of rooms (both having the same length) and returns a dictionary of room assignments.

room_assignments.py¶

🧑🏽‍🎨 Itineraries¶

Participants in your Skillathon have a list of speakers they want to hear.

Write a function that takes a list of speaker/time tuples and returns a list of speaker/room/time tuples.

room_assignments.py¶

👨🏼‍🎨 Inverting a Dictionary¶

The speaker-to-room dictionary was helpful for making individual itineraries.

Now the building-scheduling crew wants a dictionary that maps rooms to speakers.

Because the room-assignments dictionary is 1-to-1 (the keys and the values are all unique), we can do this.

Write a function that takes the room assignments and returns a new dictionary mapping rooms to speakers.

room_assignments.py¶

👨🏻‍🎨 Read from CSV¶

The various speakers have different audio-visual setups for their presentations.

One of your team members made a CSV file that indicates each speaker and their AV requests.

Write a function that takes a file name and returns a dictionary mapping speaker to AV request.

av_requests.csv¶

room_assignments.py¶

Key Ideas¶

  • Building dictionaries
    • zipping lists together
    • inverting 1-to-1 dictionaries
    • reading from CSV