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# -*- python -*-
# -*- coding: utf-8 -*-
#
# This file is part of the easydev software
#
# Copyright (c) 2011-2017
#
# File author(s): Thomas Cokelaer <cokelaer@gmail.com>
#
# Distributed under the GPLv3 License.
# See accompanying file LICENSE.txt or copy at
# http://www.gnu.org/licenses/gpl-3.0.html
#
# Website: https://github.com/cokelaer/easydev
# Documentation: http://easydev-python.readthedocs.io
#
##############################################################################
"""
Usage::
from easydev import do_profile
@do_profile()
def test():
x = 1
x *= x
return x
# source: https://zapier.com/engineering/profiling-python-boss/
Requires line_profiler to be installed. line_profiler has C code and we wish
easydev to be as simple as possible. So, we do not want compiled code dependencies.
Consequently, we added line_profiler in the extra_requires instead of requires
in the setup.py One must install line_profiler itself.
"""
__all__ = ["do_profile"]
try:
from line_profiler import LineProfiler
def do_profile(follow=[]):
def inner(func):
def profiled_func(*args, **kwargs):
try:
profiler = LineProfiler()
profiler.add_function(func)
for f in follow:
profiler.add_function(f)
profiler.enable_by_count()
return func(*args, **kwargs)
finally:
profiler.print_stats()
return profiled_func
return inner
except ImportError: # pragma: no cover
def do_profile(follow=[]):
"Helpful if you accidentally leave in production!"
print(
"easydev warning:: line_profiler does not seem to be installed. "
+ "Type 'pip install line_profiler'"
)
def inner(func):
def nothing(*args, **kwargs):
return func(*args, **kwargs)
return nothing
return inner
|
