A Track List You Can Read

10 pts · 10 coins

Python for AIMedium

A Track List You Can Read

A Track has a title and a length in seconds.

Part 1: add a __repr__ that shows the title, then the length in brackets as minutes:seconds. The seconds part always has two digits, so 65 seconds is 1:05, not 1:5.

Part 2: write track_list(pairs). pairs is a list of (title, seconds) tuples. Make a Track for each, put them in a list, and return str() of that list.

Examples

str(Track('Hum', 125))

returns 'Hum (2:05)'

pairs = [('Hum', 125), ('Buzz', 61)]

returns '[Hum (2:05), Buzz (1:01)]'

pairs = [("Intro", 65), ("Outro", 200)]

returns '[Intro (1:05), Outro (3:20)]'

str(Track("Short", 59))

returns 'Short (0:59)'

Hints

solution.py

1class Track:
2    def __init__(self, title, seconds):
3        self.title = title
4        self.seconds = seconds
5
6    # your code here
7
8
9def track_list(pairs):
10    # your code here
11    pass
12