Теперь запакуем строку.
В этом случае следует передавать тип данных bytes.
>>> struct.pack('=s', b'a')
b'a'
Для записи слова следует указывать количество символов.
>>> struct.pack('=5s', b'hello')
b'hello'
Кстати, запакованный вид соответствует исходному тексту. Всё верно, символ есть в таблице ASCII, то есть его код попадает в диапазон 0-127, он может быть записан одним байтом и имеет визуальное представление. А вот что будет если добавить символ вне ASCII
>>> struct.pack(f'=s', b'ё')
SyntaxError: bytes can only contain ASCII literal characters.
Ошибка возникла еще на этапе создания объекта bytes, который не может содержать такой символ. Поэтому надо кодировать эти байты из строки.
>>> enc = 'ёжик'.encode('utf-8')
>>> struct.pack(f'={len(enc)}s', enc)
b'\xd1\x91\xd0\xb6\xd0\xb8\xd0\xba'
Заметьте, длина такой строки в байтах отличается от исходной длины, так как символы вне ASCII записываются двумя байтами и более. Поэтому здесь формат создаём на лету, используя получившуюся длину как каунтер токена.
#libs#basic
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🔥
🔥 What's up with the listing of HOT and the project overall ?
⚡️ Futures on HOT can already be traded on the 🐂#WhiteBIT exchange, and the price is promising 🤘
Chart on the screenshot, 1 HOT = 9.142 USDT). When spot trading for HOT will be launched is just a matter of time...
.
🙂#MineHOT here:
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🔥
🔥 What's up with the listing of HOT and the project overall ?
⚡️ Futures on #HOT can already be traded on the 🐂#WhiteBIT exchange, and the price is promising 🤘
Chart on the screenshot, 1 HOT = 6.600#USDT). When spot trading for HOT will be launched is just a matter of time...
.
🙂#MineHOT here:
https:://t.me/herewalletbot/app👈
➖
🔥 What's up with the listing of HOT and the project overall ?
⚡️ Futures on #HOT can already be traded on the 🐂#WhiteBIT exchange, and the price is promising 🤘
Chart on the screenshot, 1 HOT = 8.438#USDT). When spot trading for HOT will be launched is just a matter of time...
.
🙂#MineHOT here:
https:://t.me/herewalletbot/app👈
➖
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Shared by Dimitri
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