We can run a Python script with cProfile directly from the command line using the -m cProfile option: python -m cProfile my_script.py This will execute test.py with cProfile enabled, and the profiling results w
python -m cProfile -o result.out -s cumulative test.py 1. 2. 3. 4. 5. 6. 当命令被调用时,会执行下面这个函数: exec(command, __main__.__dict__, __main__.__dict__) 1. 故这种写法会报错 import cProfile def runRe(): import re cProfile.run('re.compile("foo|bar")') #改为...
要将cProfile作为Python模块使用,必须像下面这样调用函数cProfile.run。 from simul import benchmark import cProfile cProfile.run("benchmark()") 你还可在调用对象cProfile.Profile的方法的代码之间包含一段代码,如下所示。 from simul import benchmark import cProfile pr = cProfile.Profile() pr.enable() ...
cProfile是标准库内置的两个剖析器之一,另一个是profile。profile是纯Python剖析器,历史更悠久,但速度更慢;cProfile与profile具有相同的接口,并且是用C语言编写的,因此开销更低。如果你对这些库的历史感兴趣,可参阅Armin Rigo于2005年撰写的文章(参见Bitly公司官网cProfile Request页面),该文呼吁将cProfile纳入标准库...
方法1 使用 sys 库 import sys sys._getframe().f_code.co_name 方法2 使用 inspect 库 ...
cProfile Viewing To use cProfile to capture your application's profile data, either using the command-line, like so: $ python -m cProfile -o <outputfilename> <script-name> <options> Or in code, like so: import cProfile command = """reactor.run()""" ...
Unixshelloperation.Itsimplytakesthestandardoutputofthecatcommand(whichinthiscaseisthe contentsofA.txt,B.txt,andC.txtallcombined)andwritesittothefileontherightD.txt. Youaretoreimplementasmuchofthecatcommandasquicklyasyoucan,usingwhatyoulearned fromExercise4togetcommandlinearguments.Rememberthattodostandard...
filename:lineno(function): the filename, line number, and function in question As you can see,cProfilehelps you peek at the internal workings of a code snippet. Of course, you don’t get fine grained timings, so this works better as a compliment totimeitrather than a replacement. That ...
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Python Profilers, like cProfile helps to find which part of the program or code takes more time to run. This article will walk you through the process of using cProfile module for extracting profiling data, using the pstats module to report it and snakev