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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😄Feature
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🔘A feature is an element of something interesting or important.
🔜The number of parks is an important feature of the city.
It it also used as a general label for the parts of our faces.
🔘My big nose is my least favourite feature.
🔜When we want to say what is included in something, we use feature. Often it's important that they're there.
🔘This phone features an amazing camera.
🔜Just remember, we use the word feature to talk about interesting or important things.
#feature👨🏫@America
➖➖➖➖➖➖➖➖➖➖➖➖
🆕 Crypto News @Money
😁 Crypto Game @Egame
🇺🇸 US News @America
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🇦🇪 UAE News @Dubai
▶️ Popular Movies @Videos
😜 Best Funny Video @Funnys
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The last time we met
The last words you Said
were not just words ,
But bullets in my lungs .
These beautiful clouds and cold Wheather ,
Reminds me of the moments we spent together .
Celebrating first Eid in your absence ,
Makes me guilty for my existence.
Scrolling through my WhatsApp
these days,
feels that life has left me no ways
I always felt happy whenever we met ,
But now ,
Your name forces me to regret ,
Your wait compels me to forget ,
And , even your thoughts pierces my heart.
-CH.Irfan.
#review
#poem
#feature
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