blocks|key|831653|text|from+datetime+import+datetime
startTime+=+datetime.now()

#do+something

#Python+2:+
print+datetime.now()+-+startTime+

#Python+3:+
print(datetime.now()+-+startTime)|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|831654|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>from datetime import datetime
startTime = datetime.now()

#do something

#Python 2: 
print datetime.now() - startTime 

#Python 3: 
print(datetime.now() - startTime)
</code></pre>

blocks|key|831709|text|在Linux或UNIX上从命令行执行脚本吗？在这种情况下，您可以直接使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|831710|time+./script.py|code-block|syntax|javascript|831711|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Do you execute the script from the command line on Linux or UNIX? In that case, you could just use 

<pre><code>time ./script.py
</code></pre>

blocks|key|831818|text|import+time
start+=+time.time()

fun()

#+python+2
print+'It+took',+time.time()-start,+'seconds.'

#+python+3
print('It+took',+time.time()-start,+'seconds.')|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|831819|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>import time
start = time.time()

fun()

# python 2
print 'It took', time.time()-start, 'seconds.'

# python 3
print('It took', time.time()-start, 'seconds.')
</code></pre>

blocks|key|831791|text|我通常使用的是time库中的clock()或time()。clock测量解释器时间，而time测量系统时间。其他注意事项可在docs中找到。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|831792|例如,|831793|def+fn():
++++st+=+time()
++++dostuff()
++++print+'fn+took+%25.2f+seconds'+%25+(time()+-+st)|code-block|syntax|javascript|831794|或者，您也可以使用timeit。我经常使用time方法，因为我可以快速地完成它，但如果您正在为可隔离的代码片段计时，timeit会派上用场。|831795|从timeit+docs，|831796|def+test():
++++"Stupid+test+function"
++++L+=+[]
++++for+i+in+range(100):
++++++++L.append(i)

if+__name__=='__main__':
++++from+timeit+import+Timer
++++t+=+Timer("test()",+"from+__main__+import+test")
++++print+t.timeit()|831797|然后，要转换为分钟，您可以简单地除以60。如果您希望脚本运行时采用一种易于阅读的格式，无论是秒还是天，都可以转换为timedelta并对其执行str操作：|831798|runtime+=+time()+-+st
print+'runtime:',+timedelta(seconds=runtime)|831799|这将打印出一些形式为[D+day[s],+][H]H:MM:SS[.UUUUUU]的内容。您可以查看timedelta+docs。|831800|最后，如果你真正想要的是分析你的代码，Python也提供了profile+library。|831801|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.python.org/library/time.html|1|http://docs.python.org/library/timeit.html|2|http://docs.python.org/library/datetime.html#timedelta-objects|3|http://docs.python.org/library/profile.html#module-pstats^0|7|4|E|7|M|6|T|5|17|4|1Q|4|0|0|0|0|9|6|L|4|1M|6|0|1|B|1|0|0|1L|9|1Z|3|0|0|A|V|1E|E|2|0|T|F|3|0^^$0|@$1|2|3|4|5|6|7|1E|8|@$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]|$9|1L|A|1M|B|C]|$9|1N|A|1O|B|C]]|D|@$9|1P|A|1Q|1|1R]]|E|$]]|$1|F|3|G|5|6|7|1S|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1T|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1U|8|@$9|1V|A|1W|B|C]|$9|1X|A|1Y|B|C]|$9|1Z|A|20|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|21|8|@]|D|@$9|22|A|23|1|24]]|E|$]]|$1|Q|3|R|5|J|7|25|8|@]|D|@]|E|$K|L]]|$1|S|3|T|5|6|7|26|8|@$9|27|A|28|B|C]|$9|29|A|2A|B|C]]|D|@]|E|$]]|$1|U|3|V|5|J|7|2B|8|@]|D|@]|E|$K|L]]|$1|W|3|X|5|6|7|2C|8|@$9|2D|A|2E|B|C]]|D|@$9|2F|A|2G|1|2H]]|E|$]]|$1|Y|3|Z|5|6|7|2I|8|@]|D|@$9|2J|A|2K|1|2L]]|E|$]]|$1|10|3|-4|5|6|7|2M|8|@]|D|@]|E|$]]]|11|$12|$5|13|14|15|E|$16|17]]|18|$5|13|14|15|E|$16|19]]|1A|$5|13|14|15|E|$16|1B]]|1C|$5|13|14|15|E|$16|1D]]]]

What I usually do is use <code>clock()</code> or <code>time()</code> from the <code>time</code> library. <code>clock</code> measures interpreter time, while <code>time</code> measures system time. Additional caveats can be found in the <a href="http://docs.python.org/library/time.html" rel="noreferrer" title="time">docs</a>.

For example,

<pre><code>def fn():
 st = time()
 dostuff()
 print 'fn took %.2f seconds' % (time() - st)
</code></pre>

Or alternatively, you can use <code>timeit</code>. I often use the <code>time</code> approach due to how fast I can bang it out, but if you're timing an isolate-able piece of code, <code>timeit</code> comes in handy.

From the <a href="http://docs.python.org/library/timeit.html" rel="noreferrer">timeit docs</a>,

<pre><code>def test():
 "Stupid test function"
 L = []
 for i in range(100):
 L.append(i)

if __name__=='__main__':
 from timeit import Timer
 t = Timer("test()", "from __main__ import test")
 print t.timeit()
</code></pre>

Then to convert to minutes, you can simply divide by 60. If you want the script runtime in an easily readable format, whether it's seconds or days, you can convert to a <code>timedelta</code> and <code>str</code> it:

<pre><code>runtime = time() - st
print 'runtime:', timedelta(seconds=runtime)
</code></pre>

and that'll print out something of the form <code>[D day[s], ][H]H:MM:SS[.UUUUUU]</code>. You can check out the <a href="http://docs.python.org/library/datetime.html#timedelta-objects" rel="noreferrer">timedelta docs</a>.

And finally, if what you're actually after is profiling your code, Python makes available the <a href="http://docs.python.org/library/profile.html#module-pstats" rel="noreferrer">profile library</a> as well.

blocks|key|831943|text|import+time+

startTime+=+time.time()
#+Your+code+here+!
print+('The+script+took+{0}+second+!'.format(time.time()+-+startTime))|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|831944|前面的代码对我来说没有任何问题！|unstyled|831945|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>import time 

startTime = time.time()
# Your code here !
print ('The script took {0} second !'.format(time.time() - startTime))
</code></pre>

The previous code works for me with no problem !

blocks|key|616531|text|import+sys
import+timeit

start+=+timeit.default_timer()

#do+some+nice+things...

stop+=+timeit.default_timer()
total_time+=+stop+-+start

#+output+running+time+in+a+nice+format.
mins,+secs+=+divmod(total_time,+60)
hours,+mins+=+divmod(mins,+60)

sys.stdout.write("Total+running+time:+%25d:%25d:%25d.\n"+%25+(hours,+mins,+secs))|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|616532|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>import sys
import timeit

start = timeit.default_timer()

#do some nice things...

stop = timeit.default_timer()
total_time = stop - start

# output running time in a nice format.
mins, secs = divmod(total_time, 60)
hours, mins = divmod(mins, 60)

sys.stdout.write("Total running time: %d:%d:%d.\n" % (hours, mins, secs))
</code></pre>

blocks|key|616474|text|使用timeit模块。这很简单。运行example.py文件，使其在Python+Shell中处于活动状态，现在您应该能够在shell中调用函数了。试一试，看看它是否正常工作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|616475|>>>fun(input)
output|code-block|syntax|javascript|616476|很好，这很有效，现在导入timeit并设置一个计时器|616477|>>>import+timeit
>>>t+=+timeit.Timer('example.fun(input)','import+example')
>>>|616478|现在我们已经设置了计时器，可以看到需要多长时间|616479|>>>t.timeit(number=1)
some+number+here|616480|然后我们开始，它会告诉你执行这个函数需要多少秒(或更少)。如果它是一个简单的函数，那么您可以将它增加到t.timeit(number=1000)+(或任何数字！)然后将答案除以数字，得到平均值。|616481|我希望这能帮到你。|616482|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|Y|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|10|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

Use the timeit module. It's very easy. Run your example.py file so it is active in the Python Shell, you should now be able to call your function in the shell. Try it out to check it works

<pre><code>&gt;&gt;&gt;fun(input)
output
</code></pre>

Good, that works, now import timeit and set up a timer

<pre><code>&gt;&gt;&gt;import timeit
&gt;&gt;&gt;t = timeit.Timer('example.fun(input)','import example')
&gt;&gt;&gt;
</code></pre>

Now we have our timer set up we can see how long it takes

<pre><code>&gt;&gt;&gt;t.timeit(number=1)
some number here
</code></pre>

And there we go, it will tell you how many seconds (or less) it took to execute that function. If it's a simple function then you can increase it to t.timeit(number=1000) (or any number!) and then divide the answer by the number to get the average.

I hope this helps.

blocks|key|616559|text|使用time和datetime包。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|616560|如果有人想要执行此脚本并在几分钟内找出执行所需的时间|616561|import+time
from+time+import+strftime
from+datetime+import+datetime+
from+time+import+gmtime

def+start_time_():++++
++++#import+time
++++start_time+=+time.time()
++++return(start_time)

def+end_time_():
++++#import+time
++++end_time+=+time.time()
++++return(end_time)

def+Execution_time(start_time_,end_time_):
+++#import+time
+++#from+time+import+strftime
+++#from+datetime+import+datetime+
+++#from+time+import+gmtime
+++return(strftime("%25H:%25M:%25S",gmtime(int('{:.0f}'.format(float(str((end_time-start_time))))))))

start_time+=+start_time_()
#+your+code+here+#
[i+for+i+in+range(0,100000000)]
#+your+code+here+#
end_time+=+end_time_()
print("Execution_time+is+:",+Execution_time(start_time,end_time))|code-block|syntax|javascript|616562|上面的代码适用于我。我希望这能帮到你。|616563|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

use the time and datetime packages.

if anybody want to execute this script and also find out how much time it took to execute in minutes

<pre><code>import time
from time import strftime
from datetime import datetime 
from time import gmtime

def start_time_(): 
 #import time
 start_time = time.time()
 return(start_time)

def end_time_():
 #import time
 end_time = time.time()
 return(end_time)

def Execution_time(start_time_,end_time_):
 #import time
 #from time import strftime
 #from datetime import datetime 
 #from time import gmtime
 return(strftime("%H:%M:%S",gmtime(int('{:.0f}'.format(float(str((end_time-start_time))))))))

start_time = start_time_()
# your code here #
[i for i in range(0,100000000)]
# your code here #
end_time = end_time_()
print("Execution_time is :", Execution_time(start_time,end_time))
</code></pre>

The above code works for me. I hope this helps.

I have the following code in a python script:

<pre><code>def fun(): 
 #Code here

fun()
</code></pre>

I want to execute this script and also find out how much time it took to execute in minutes. How do I find out how much time it took for this script to execute ? An example would be really appreciated.

Find out time it took for a python script to complete execution

我在python脚本中有以下代码：def fun():   #Code herefun()我想要执行这个脚本，并找出它花了多少时间在几分钟内执行。如何找出执行此脚本所需的时间？举个例子，我会很感激的。

问查找python脚本完成执行所用的时间
EN

回答 8

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问查找python脚本完成执行所用的时间EN

回答 8

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问查找python脚本完成执行所用的时间
EN