Я знаю, что это старое сообщение, но мне недавно приходилось иметь дело с чем-то подобным, только это было сложнее.
Оба ответа хороши в зависимости от вашей конечной цели. Я хочу упомянуть, что это важная разница между двумя ответами, предоставленными @Martijn и @Abdul.
Если вы посмотрите на их ответы, то, как они строят словарь, отличается. @Martijn использует список кортежей, тогда как @Abdul подходит для более стандартного способа определения словарей в Python.
Где вы можете увидеть это когда у вас есть словарь с несколькими уровнями, например:
dict = {"key": value,
{"key_2": value_2,
{"key_3": value_3 }
}
}
Если вы идете @Abdul ответ вы можете легко перебирать суб-Dict просто прослеживая ключи, но ответ @Martijn даст вам dict с списками, внутри которых не так легко итерации (вам нужно для циклов и т. д.).
Опять же, это зависит от сложности приложения. В последнее время я столкнулся с ситуацией, когда мне нужен был OrderedDict, и перебирать его ключ под-dicts на любом уровне. Весь смысл словарей в Python заключается в том, чтобы перейти к значениям только путем поиска определенного ключа.
Нижеприведенный пример был построен мной путем разбора нескольких файлов XML и добавления в пустой словарь. После получения дикта, как вы видите, я должен был проверить каждый поддиск для определенных условий.
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Примечание: 'OrderedDict' сортируется по порядку вставки, а не буквенно-цифровому порядку клавиш. –