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from hotshot import Profile
from hotshot.stats import load as loadStats
from os import unlink
from io import StringIO
def runProfiler(logger, func, args=tuple(), kw={},
verbose=True, nb_func=25,
sort_by=('time',)):
"""
Run a function in a profiler and then display the functions sorted by time.
"""
profile_filename = "/tmp/profiler"
prof = Profile(profile_filename)
try:
logger.warning("Run profiler")
result = prof.runcall(func, *args, **kw)
prof.close()
logger.error("Profiler: Process data...")
stat = loadStats(profile_filename)
stat.strip_dirs()
stat.sort_stats(*sort_by)
logger.error("Profiler: Result:")
log = StringIO()
stat.stream = log
stat.print_stats(nb_func)
log.seek(0)
for line in log:
logger.error(line.rstrip())
return result
finally:
unlink(profile_filename)
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