Python

What techniques prevent unwanted data read operations?

```python import asyncio from typing import List, Optional class Chunk: def __init__(self, items: List[dict]): self.items = items @property def size(self) -> int: return len(self.items) class Producer: async def next(self) -> Optional[Chunk]: # возвращает пачку данных или None ... async def commit(self, chunks: List[Chunk]) -> None: # фиксируем успешную обработку chunks ... class Consumer: max_batch_size = 100 async def consume(self, chunks: List[Chunk]) -> None: total_size = sum(chunk.size for chunk in chunks) if total_size > self.max_batch_size: raise ValueError("batch is too large") # обработка данных ... producer = Producer() consumer = Consumer() async def process(): while True: chunk = await producer.next() if chunk is None: break try: await consumer.consume([chunk]) await producer.commit([chunk]) except Exception as e: print("error but continue:", e) continue if __name__ == "__main__": asyncio.run(process()) ``` This code defines asynchronous producer-consumer classes with batch processing and error handling. The task is to implement or complete the logic for producing, consuming, and committing chunks of data, ensuring batch size limits are respected and errors are handled gracefully.

What are the consequences of using a list as a key in a dictionary?

How to output all list elements without using a for loop?

from src import load_model @app.post("/classify") async def classify(request: dict): text = request["text"] model = load_model("classifier_v1") prediction = model.predict([text]) return {"label": prediction}

What are the advantages of using ModelSerializer in Django REST Framework?

What professional skills and knowledge do you plan to develop within this project or company?

Junior — Middle

Рунити

Why did you use Celery instead of Kafka for all tasks? What is the difference?

Middle

СБЕР

What principles should be considered when developing RESTful APIs?

Have you ever experienced professional burnout or exhaustion?

Are you familiar with Event Sourcing? Have you used it?

Middle

СБЕР

Is it possible to run Docker containers on Windows, and what features are involved?

What main problems did you encounter when testing the application?

What are the main advantages and disadvantages of using co-processes in systems?

To which category of tools does the Athena service belong in the context of data analytics?

If you have seen slow queries, how did you analyze the problem and what solutions did you implement? Is there a real case?

Senior

amoCRM

What tools or approaches do you use to ensure adherence to a unified coding style in the project?

In which cases is it recommended to use key-value databases?

How is the user verification and login process implemented within the Django framework?

What type of data is stored using values in Redis?