TGINSIGHT SIMILAR POSTS
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
Пребарај: #bbclearningenglish
@english_bbc_learning · Post #3811 · 20.12.2025 г., 15:34
🎄 Do you know how to respond when an English speaker wishes you a merry Christmas?’ Try this quiz - we’ll tell you the answer later! Are there any other ways you could respond? 🤶 [Image: Getty] EXTRA: This festive season, we're sharing some of our own stories about Christmas and New Year. Link in bio. #learnenglish#english#bbclearningenglish
@english_bbc_learning · Post #3761 · 16.11.2025 г., 08:45
😊 The next time you're feeling 'happy', try using one of these synonyms instead and boost your vocabulary! ✍️ See if you can use one of them in the comments. Note: not all the words are perfect synonyms. Pay attention to the context and grammar. MORE: Is happiness the key to success? 🔎 Find out in this episode of 6 Minute English. Click on the link in our bio. #englishlesson#englishwords#englishvocabulary#english#bbclearningenglish
@english_bbc_learning · Post #3759 · 10.11.2025 г., 09:49
🍱🥘🍲 The next time you eat something delicious, try using one of these synonyms instead and boost your vocabulary! ✍️ See if you can use one of them in the comments. Note: not all the words are perfect synonyms. Pay attention to the context and grammar. 🎧 MORE: Click on the link in our bio to listen to a 6 Minute English box set on the topic of food. #englishlesson#englishwords#englishvocabulary#english#bbclearningenglish
@english_bbc_learning · Post #3747 · 03.11.2025 г., 20:52
🚀 Take your English vocabulary to the next level by learning these alternatives to ‘less than’! Can you use one in a sentence - and do you know any more? 👀 Note: these words may not be exact synonyms - pay attention to the context. #englishlesson#englishwords#englishvocabulary#english#bbclearningenglish#englishteacher#lessthan
@english_bbc_learning · Post #3722 · 13.10.2025 г., 18:23
🤢😔 Everybody gets sick from time to time… so we made a vocabulary table with useful sickness-related English for you to learn, use, and share with a friend! 😄 Do you know any more English vocabulary related to illness? 👇 #englishvocabulary#learnenglish#englishphrases#britishenglish#EFL#ESL#ELT#vocab#bbclearningenglish
@english_bbc_learning · Post #3690 · 19.09.2025 г., 08:45
😱 Lots of animal species are at risk of extinction. 🐘🦁🦒Can you choose the correct word to fill the gap? We’ll tell you the correct answer later! (Image: Getty) #environment#extinction#extinct#earth#animals#learnenglish#bbclearningenglish#vocab#englishquiz
@english_bbc_learning · Post #3809 · 15.12.2025 г., 05:11
Here are 5 linkers that you can add to your conversation to make it flow better and sound more fluent! 1) To be honest – I’m going to give my opinion (even if it’s insulting!) 2) Actually – to correct information or say something surprising 3) Mind you – I’ve just thought of something that contrasts what I was saying 4) By the way – I’m going to introduce a new topic I’ve just remembered 5) Anyway – I’m going to finish the conversation or change topic now Add them to your conversations to help them flow! Which one is your favourite? #learnenglish#speakenglish#vocabulary#bbclearningenglish#britishenglish#formalenglish#linkers#naturalenglish#nativespeakerenglish#conversationskills#ncoversationalenglish
@english_bbc_learning · Post #3689 · 07.09.2025 г., 03:15
❓❓❓Do you know how to respond when an English speaker asks ‘Is the post office open today?’ 🏣Try this quiz - we’ll tell you the answer later! Are there any other ways you could respond?👇👇👇 [Image: Getty] #learnenglish#socialenglish#correctresponse#englishquiz#english#englishvocabulary#learnenglish#englishphrases#contraction#question#shortanswer#britishenglish#EFL#ESL#ELT#vocab#bbclearningenglish