Ранее я делал серию постов про битовые операторы.
Вот вам ещё один наглядный пример как это используется в Python в модуле re.
Чтобы указать флаг для компилятора нам надо указать его после передаваемой строки. Например, добавляем флаг для игнорирования переноса строки.
pattern = re.compile(r"(\w+)+")
words = pattern.search(text, re.DOTALL)
А как указать несколько флагов? Ведь явно будут ситуации когда нам потребуется больше одного. Кто читал посты по битовые операторы уже понял как.
pattern.search(text, re.DOTALL | re.VERBOSE)
А теперь смотрим исходники, что находится в этих атрибутах?
Не удивительно, степени двойки. Почему? Потому что каждое следующее значение это сдвиг единицы влево.
>>> for n in [1, 2, 4, 8, 16, 32, 64, 128, 256]:
>>>
print(bin(n))
0b1
0b10
0b100
0b1000
0b10000
0b100000
0b1000000
0b10000000
0b100000000
Чтобы было понятней, давайте напишем тоже самое но иначе, добавим ведущие нули:
000000001
000000010
000000100
000001000
000010000
000100000
001000000
010000000
100000000
Не понятно что тут происходит? Читай три поста про битовые операторы начиная с этого ➡️https://t.me/pythonotes/45
В общем, это пример применения побитовых операций в самом Python.
Теперь вы знаете Python еще немного лучше)
#tricks#regex#libs
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Chairman, NIDO Russia
+79262385618
https://t.me/nido_russia/1723
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Dr. Godwin Ibe
Chairman, NIDO Russia
+79262385618
https://t.me/nido_russia/1723
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Dr. Godwin Ibe
Chairman, NIDO Russia
+79262385618
https://t.me/nido_russia/1723
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Everyone can finally use "PAD" to gain up to 10% discount when applying for Nigerian passport, NIN or VISA.
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3. We'll guide you on other documents that you might need after getting your passport/Visa.
4. We'll guide you on travel and accommodation plans if you have to travel to Moscow from another city.
5. We'll offer assistance in the case of delays or deliver your passport to you.
Yours in service,
Dr. Godwin Ibe
Chairman, NIDO Russia
+79262385618
https://t.me/nido_russia/1723
#pad#visa#nin#passport
Visa/NIN/Passport Application Discount (PAD)
Everyone can finally use "PAD" to gain up to 10% discount when applying for Nigerian passport, NIN or VISA.
✅ Avoid paying twice through unofficial sources or scammers who hide behind unregistered businesses.
✅ Avoid mistakes in the application process that will cost you time, energy and money.
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1. We'll guide you on all that you need to do to successful apply for passport/visa issuance or re-issuance from start to finish.
2. We'll offer you a discount on payment for passport issuance or re-issuance or Nigerian VISA application in some cases.
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Dr. Godwin Ibe
Chairman, NIDO Russia
+79262385618
https://t.me/nido_russia/1723
#pad#visa#nin#passport
Visa/NIN/Passport Application Discount (PAD)
Everyone can finally use "PAD" to gain up to 10% discount when applying for Nigerian passport, NIN or VISA.
✅ Avoid paying twice through unofficial sources or scammers who hide behind unregistered businesses.
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2. We'll offer you a discount on payment for passport issuance or re-issuance or Nigerian VISA application in some cases.
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5. We'll offer assistance in the case of delays or deliver your passport to you.
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Chairman, NIDO Russia
+79262385618
https://t.me/nido_russia/1723
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