What will happen if __new__ returns an object of another class?
Python
Compare multithreading, multiprocessing, and asynchronous in Python: differences, advantages, and disadvantages.
def withdraw(user_id, amount): user = User.objects.get(id=user_id) if user.balance < amount: raise InsufficientFundsError() user.balance -= amount user.save()
What feature of immutable objects in Python allows them to be used as dictionary keys?
How to refresh the access token after expiration without requiring the user to log in each time? Where does the refresh token come from and how is it used?
Fix the error in the following Python class definition: ```python class OrderService: def __init__(self): self.db = PostgresDB() ```
What authentication mechanisms are available in Django?
How to make a custom object a key of a dictionary?
What files and mechanisms of Claude Code can be used for persistent instructions, skills, and subagents? Have you used them?
How is a dict in Python structured, what are the nuances of dictionaries and hash tables?
How does a virtual machine differ from a Docker container?
What are the key differences between HTTP/2 and HTTP/1.1?
How to advancedly use AI agents in an already familiar project and save context/tokens?
Why can different objects have the same hash?
Why can multithreading speed up synchronous HTTP requests through requests despite GIL?
-- Процесс A BEGIN; SELECT * FROM orders WHERE id = 1 FOR UPDATE; SELECT * FROM orders WHERE id = 2 FOR UPDATE; -- Процесс B (в это же время) BEGIN; SELECT * FROM orders WHERE id = 2 FOR UPDATE; SELECT * FROM orders WHERE id = 1 FOR UPDATE;
How is memory management implemented in Python?
Is it necessary to confirm messages in Kafka?
Write a timer decorator that measures and outputs the execution time of a function; then ensure argument passing and metadata preservation.
What are the guarantees of message delivery?