On Wed, Apr 24, 2013 at 12:36 AM, Steven D'Aprano
wrote:
> # Using Python 3.3.
>
> py> from timeit import Timer
> py> setup = "a = 'spam'; b = 'ham'; c = 'eggs'"
> py> t1 = Timer("'%s, %s and %s for breakfast' % (a, b, c)", setup)
> py> t2 = Timer("'{}, {} and {} for breakfast'.format(a, b, c)", s
On Tue, 23 Apr 2013 09:46:53 +0200, Ulrich Eckhardt wrote:
> Am 23.04.2013 06:00, schrieb Steven D'Aprano:
>> If it comes down to micro-optimizations to shave a few microseconds
>> off, consider using string % formatting rather than the format method.
>
> Why? I don't see any obvious difference b
On Tue, Apr 23, 2013 at 11:53 AM, Roy Smith wrote:
> In article ,
> Rodrick Brown wrote:
>
>> I would like some feedback on possible solutions to make this script run
>> faster.
>
> If I had to guess, I would think this stuff:
>
>> line = line.replace('mediacdn.xxx.com', 'med
On Tue, Apr 23, 2013 at 9:46 AM, Ulrich Eckhardt
wrote:
> Am 23.04.2013 06:00, schrieb Steven D'Aprano:
>>
>> If it comes down to micro-optimizations to shave a few microseconds off,
>> consider using string % formatting rather than the format method.
>
>
> Why? I don't see any obvious difference
Am 23.04.2013 06:00, schrieb Steven D'Aprano:
If it comes down to micro-optimizations to shave a few microseconds off,
consider using string % formatting rather than the format method.
Why? I don't see any obvious difference between the two...
Greetings!
Uli
--
http://mail.python.org/mailma
On Tue, 23 Apr 2013 00:20:59 -0400, Rodrick Brown wrote:
> Got a doc or URL I have no experience working with python profilers.
https://duckduckgo.com/html/?q=python%20profiler
This is also good:
http://pymotw.com/2/profile/
--
Steven
--
http://mail.python.org/mailman/listinfo/python-li
On Apr 22, 2013, at 11:18 PM, Dan Stromberg wrote:
On Mon, Apr 22, 2013 at 6:53 PM, Roy Smith wrote:
>
> So, my real advice to you is to fire up the profiler and see what it
> says.
I agree.
Fire up a line-oriented profiler and only then start trying to improve the
hot spots.
Got a doc o
On Tue, Apr 23, 2013 at 2:00 PM, Steven D'Aprano
wrote:
> Also, you're searching the file system *for every line* in the input
> file. Pull this outside of the loop and have it run once:
>
> if not os.path.exists(outdir):
> os.makedirs(outdir)
>
> Likewi
On Mon, 22 Apr 2013 21:19:23 -0400, Rodrick Brown wrote:
> I would like some feedback on possible solutions to make this script run
> faster.
> The system is pegged at 100% CPU and it takes a long time to complete.
Have you profiled the app to see where it is spending all its time?
What does "a
On Mon, Apr 22, 2013 at 6:53 PM, Roy Smith wrote:
>
> So, my real advice to you is to fire up the profiler and see what it
> says.
I agree.
Fire up a line-oriented profiler and only then start trying to improve the
hot spots.
--
http://mail.python.org/mailman/listinfo/python-list
On 23/04/2013 02:19, Rodrick Brown wrote:
I would like some feedback on possible solutions to make this script run
faster.
The system is pegged at 100% CPU and it takes a long time to complete.
#!/usr/bin/env python
import gzip
import re
import os
import sys
from datetime import datetime
impor
In article ,
Rodrick Brown wrote:
> I would like some feedback on possible solutions to make this script run
> faster.
If I had to guess, I would think this stuff:
> line = line.replace('mediacdn.xxx.com', 'media.xxx.com')
> line = line.replace('staticcd
On Tue, Apr 23, 2013 at 11:19 AM, Rodrick Brown wrote:
> with gzip.open(args.inputfile) as datafile:
> for line in datafile:
> outfile = '{}{}{}_combined.log'.format(dateobj.year,
> dateobj.month, dateobj.day)
> outdir = (args.out
I would like some feedback on possible solutions to make this script run
faster.
The system is pegged at 100% CPU and it takes a long time to complete.
#!/usr/bin/env python
import gzip
import re
import os
import sys
from datetime import datetime
import argparse
if __name__ == '__main__':
p
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