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Изворен канал @pythonotes · Post #397 · 12 ное.

Использование Pydantic сегодня стало нормой, и это правильно. Но иногда на ревью вижу, что используют его не всегда корректно. Например, метод BaseModel.model_dump() по умолчанию не преобразует стандартные типы, такие как datetime, UUID или Decimal, в простой сериализуемый для JSON вид. Тогда пишут кастмоный сериализатор для этих типов чтобы функция json.dump() не падала с ошибкой. import uuid from datetime import datetime from decimal import Decimal from uuid import UUID from pydantic import BaseModel class MyModel(BaseModel): id: UUID date: datetime value: Decimal obj = MyModel( id=uuid.uuid4(), date=datetime.now(), value='1.23' ) print(obj.model_dump()) # не подходит для json.dump # { # 'id': UUID('4f8c1bc4-25fd-40cd-9dbe-2c73639b0dc1'), # 'date': datetime.datetime(2025, 12, 12, 12, 12, 12, 111111), # 'value': Decimal('1.23') # } # добавляем свой кастомный сериализатор json.dumps(obj.model_dump(), cls=MySerializer) # { # 'id': '4f8c1bc4-25fd-40cd-9dbe-2c73639b0dc1', # 'date': '2025-12-12T12:12:12.111111', # 'value': '1.23' # } В данном случае класс MySerializer обрабатывает datetime, UUID и Decimal. Например так: class MySerializer(json.JSONEncoder): def default(self, o): if isinstance(o, Decimal): return str(o) elif isinstance(o, datetime): return o.isoformat() elif isinstance(o, UUID): return str(o) return super().default(o) Специально для тех, кто всё еще так делает - в этом нет необходимости! Pydantic может это сделать сам, просто нужно добавить параметр mode="json". json.dumps(obj.model_dump(mode="json")) # { # 'id': '4f8c1bc4-25fd-40cd-9dbe-2c73639b0dc1', # 'date': '2012-12-12T12:12:12.111111', # 'value': '1.23' # } #pydantic#libs

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#pydantic #libs

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English From Zero to Hero

@Learn_English_from_Zero_to_Hero · Post #58604 · 03.12.2024 г., 13:16

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#Conversation ❄️Talking about future events 🫧Scheduled events🫧 ✨Dialogue "A" ✨ 🧑🏻‍🦱Raj: What time does the movie °start?° 👱🏻‍♂ Ines: It starts at 7:30, and °ends° at 9:45. 🧑🏻‍🦱 Raj: Good, we can go on the bus, and get back home before it’s too dark. Is there a bus stop near your house? 👱🏻‍♂ Ines: Yes. It °stops° on the corner every fifteen minutes. 🧑🏻‍🦱 Raj: Perfect. I’m looking forward to seeing this movie. 🫧Plans for the very near future🫧 ✨Dialogue "B" ✨ 👱🏻‍♀ Jenny: What are you °doing° tomorrow? 👩🏻‍🦰 Paula: I’m going to the beach with my family for a week. We’re leaving early—at 6 a.m. 👱🏻‍♀ Jenny: Oh, nice! So I guess you’re °planning° to go to bed early tonight. 👩🏻‍🦰 Paula: Yeah, I’m °gonna° pack my bag and try to °hit the sack° by nine o’clock. 👱🏻‍♀ Jenny: °Good luck with that!° What are you taking? 👩🏻‍🦰 Paula: I always °pack light° for the beach—a bathing suit, a couple of pairs of shorts, some T-shirts, a hat, and lots of sunscreen. How about you? What are you doing next week? 👱🏻‍♀ Jenny: I’m going to stay home and °catch up on° some unfinished projects. 👩🏻‍🦰 Paula: Like what? 👱🏻‍♀ Jenny: Oh, I have a long list! First I’m going to clean up my office, pay bills, write letters, and °take care of a bunch° of paperwork. Then I’m going to redecorate my bedroom—paint the walls and get new curtains. 👩🏻‍🦰 Paula: Wow. What color are you going to paint it? 👱🏻‍♀ Jenny: It’s a very light blue. I’ve already picked it out and bought the paint. 👩🏻‍🦰 Paula: Cool.

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djangoproject

@djangoproject · Post #84 · 08.07.2016 г., 10:32

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https://github.com/python-telegram-bot/python-telegram-bot/pull/331 To hold a conversation with users, the #bot has to implement a #state machine to keep track of the different paths in the #conversation. This is a pretty common pattern and we don't have a good way to deal with it right now. The #state_machine_bot.py example is far from perfect. This PR introduces a new Handler subclass called ConversationHandler to take care of this. Instead of re-inventing the wheel, this handler acts only as "management" for the existing handler classes. Copied from documentation: A handler to hold a conversation with a user by managing four collections of other handlers. The first collection, a list named entry_points, is used to initiate the conversation, for example with a CommandHandler or RegexHandler.

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#bot #state #conversation #state_machine_bot

Luna Everly

@lunaeverly · Post #61 · 30.01.2026 г., 08:10

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The perfect weekend plan: a friend's sofa, laughter, and talks about everything under the sun. ☕️💬 Sometimes the best therapy isn't a session, but warm conversation with someone who gets you. Идеальный план выходного дня: диван подруги, смех и разговоры обо всём на свете. ☕️💬 Иногда лучшая терапия — это не сеанс, а тёплое общение с тем, кто тебя понимает. #LunaEverly#Weekend#DayWithAFriend#SimpleJoy#Conversation

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#lunaeverly #weekend #daywithafriend #simplejoy #conversation