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26 lines
703 B
Python
26 lines
703 B
Python
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import os.path
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import csv
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from collections import namedtuple
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Artist = namedtuple("Artist", ['name', 'weight', 'category'])
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class ArtistsDatabase:
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def __init__(self, filename):
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self.cats = set()
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self.artists = []
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if not os.path.exists(filename):
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return
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with open(filename, "r", newline='', encoding="utf8") as file:
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reader = csv.DictReader(file)
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for row in reader:
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artist = Artist(row["artist"], float(row["score"]), row["category"])
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self.artists.append(artist)
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self.cats.add(artist.category)
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def categories(self):
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return sorted(self.cats)
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