jmichalicek

# I can never remember that this is a thing, but it is occasionally useful for me
ids = [5, 2, 3, 1, 4]
order = Case(*[When(id=id, then=pos) for pos, id in enumerate(ids)])
queryset = MyModel.objects.filter(id__in=ids).order_by(order)

jmichalicek

import logging
import time
from contextlib import ContextDecorator

class log_execution_time(ContextDecorator):
    """
    A context processor and decorator for logging timings.

    logger = logging.getLogger(__name__)
    @log_execution_time('my_func', logger, logging.DEBUG)