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Day 23

Pythonのコードを短く簡潔に書くテクニック Advent Calendar 2017

@wakame1367

重複する要素を除去するにはset関数を使おう

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重複している要素が存在するリストから重複要素を取り除くにはset関数が便利です。

set関数

どう便利かと言うと例えば重複を含むデータに対して

対象データ
names = ["Suzuki", "Tanaka", "Kato", "Suzuki", "Kato"]

以下のようにset関数に渡してあげると、重複なしのsetオブジェクトを生成することができます。

set使用例
set_names = set(names)

print(set_names)

"""
{'Suzuki', 'Tanaka', 'Kato'}
"""

　参考

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