Get time of execution of a block of code in Python 2.7

Question

I would like to measure the time elapsed to evaluate a block of code in a Python program, possibly separating between user cpu time, system cpu time and elapsed time.

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Answer 1

You can achieve this through the Context Manager, for example:

from contextlib import contextmanager
import time
import logging
@contextmanager
def _log_time_usage(prefix=""):
    '''log the time usage in a code block
    prefix: the prefix text to show
    '''
    start = time.time()
    try:
        yield
    finally:
        end = time.time()
        elapsed_seconds = float("%.2f" % (end - start))
        logging.debug('%s: elapsed seconds: %s', prefix, elapsed_seconds)

use example:

with _log_time_usage("sleep 1: "):
    time.sleep(1)