dp = DataProcessor() New: 'DataProcessor' object has no attribute 'process'. Did you mean: 'process_data'? try: dp.process() except AttributeError as e: print(e) 2. The copy Module Gets replace() Method A new method for creating modified copies of objects without mutation.
# List comprehension performance list_time = timeit.timeit( "[i * 2 for i in range(1000)]", number=100000 ) print(f"List comprehensions: list_time:.3fs") python 3.13 changes
async_test = """ async def test(): async with AsyncCM(): pass """ dp = DataProcessor() New: 'DataProcessor' object has no
from typing import assert_never, TypeIs, Literal def is_string_list(obj: object) -> TypeIs[list[str]]: """More precise type guard than TypeGuard""" return isinstance(obj, list) and all(isinstance(item, str) for item in obj) Literal def is_string_list(obj: object) ->