Најди сличен содржај

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

Hashtags

#pydantic #libs

Резултати

Пронајдени 2 слични објави

Пребарај: #newsletters

当前筛选 #newsletters清除筛选

🦅 [ perspective ix ]

@perspectiveix · Post #1847 · 17.06.2019 г., 13:00

Најди слично Погледај

📱Email & Mobile Notifications in Driving Loyalty Generating more direct traffic to websites and apps is an important priority for publishers, with #email#newsletters a particularly favoured tactic for retaining subscribers but also for attracting new users. The Washington Post operates around 70 different newsletters & has found that recipients consume around three times as much content as those who don’t use email news. RI’s own data this year show that 42% of US digital subscribers have used one or more email newsletters in the last week compared with 35% in the UK but just 17% in Norway and 19% in Sweden. It is clear this is one area where Nordic publishers could learn a few tricks from the United States. via The Reuters Institute. 🔗 Read more & download the RI's Digital News Report 2019 in yesterday's Pulse - don't forget to subscribe. Country analysis for: 🇬🇧🇦🇹🇧🇪🇧🇬🇭🇷🇨🇿🇩🇰🇫🇮🇫🇷🇩🇪🇬🇷🇭🇺🇮🇪🇮🇹🇳🇱🇳🇴🇵🇱🇵🇹🇷🇴🇸🇰🇪🇸🇸🇪🇨🇭🇹🇷| 🇺🇸🇦🇷🇧🇷🇨🇦🇨🇱🇲🇽| 🇦🇺🇭🇰🇯🇵🇲🇾🇸🇬🇰🇷🇹🇼| 🇿🇦 🚀@PerspectiveIX

Hashtags

#email #newsletters

GitHub Trends

@githubtrending · Post #14764 · 30.05.2025 г., 11:30

Најди слично Погледај

#go#dovecot#email#email_marketing#mail#mailserver#newsletter#newsletters#postfix#rspamd#server#smtp BillionMail is a free, open-source mail server and email marketing tool that lets you send newsletters, promotions, and transactional emails with full control and privacy. You can install it in about eight minutes, connect your own domain, and start campaigns easily. It offers advanced analytics, unlimited sending, customizable templates, and keeps your data secure on your own server. This means you avoid expensive fees, hidden costs, and third-party tracking, making it ideal for businesses and individuals who want powerful, private, and flexible email marketing[2][3][4]. https://github.com/aaPanel/BillionMail

Hashtags

#go #dovecot #email #email_marketing #mail #mailserver #newsletter #newsletters #postfix #rspamd #server #smtp