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Groups > comp.lang.python > #107992

Re: Fastest way to retrieve and write html contents to file

From Stephen Hansen <me+python@ixokai.io>
Newsgroups comp.lang.python
Subject Re: Fastest way to retrieve and write html contents to file
Date 2016-05-01 23:27 -0700
Message-ID <mailman.308.1462170455.32212.python-list@python.org> (permalink)
References (3 earlier) <ng6mn7$8nv$1@dont-email.me> <1462166136.1167243.595273897.291B0865@webmail.messagingengine.com> <mailman.303.1462166138.32212.python-list@python.org> <ng6q67$gnm$1@dont-email.me> <1462170452.1180117.595306673.68B64F02@webmail.messagingengine.com>

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On Sun, May 1, 2016, at 10:59 PM, DFS wrote:
> startTime = time.clock()        
> for i in range(loops):
> 	r = urllib2.urlopen(webpage)
> 	f = open(webfile,"w")
> 	f.write(r.read())
> 	f.close
> endTime = time.clock()          
> print "Finished urllib2 in %.2g seconds" %(endTime-startTime)

Yeah on my system I get 1.8 out of this, amounting to 0.18s. 

I'm again going back to the point of: its fast enough. When comparing
two small numbers, "twice as slow" is meaningless.

You have an assumption you haven't answered, that downloading a 10 meg
file will be twice as slow as downloading this tiny file. You haven't
proven that at all. 

I suspect you have a constant overhead of X, and in this toy example,
that makes it seem twice as slow. But when downloading a file of size,
you'll have the same constant factor, at which point the difference is
irrelevant. 

If you believe otherwise, demonstrate it.

-- 
Stephen Hansen
  m e @ i x o k a i . i o

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Thread

Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 00:06 -0400
  Re: Fastest way to retrieve and write html contents to file Stephen Hansen <me+python@ixokai.io> - 2016-05-01 21:34 -0700
  Re: Fastest way to retrieve and write html contents to file Chris Angelico <rosuav@gmail.com> - 2016-05-02 14:40 +1000
    Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 00:50 -0400
      Re: Fastest way to retrieve and write html contents to file Stephen Hansen <me+python@ixokai.io> - 2016-05-01 22:00 -0700
        Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 01:04 -0400
          Re: Fastest way to retrieve and write html contents to file Chris Angelico <rosuav@gmail.com> - 2016-05-02 15:12 +1000
          Re: Fastest way to retrieve and write html contents to file Stephen Hansen <me+python@ixokai.io> - 2016-05-01 22:17 -0700
          Re: Fastest way to retrieve and write html contents to file Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-05-02 15:57 +1000
  Re: Fastest way to retrieve and write html contents to file Ben Finney <ben+python@benfinney.id.au> - 2016-05-02 14:49 +1000
    Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 01:00 -0400
      Re: Fastest way to retrieve and write html contents to file Stephen Hansen <me+python@ixokai.io> - 2016-05-01 22:15 -0700
        Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 01:59 -0400
          Re: Fastest way to retrieve and write html contents to file Stephen Hansen <me+python@ixokai.io> - 2016-05-01 23:27 -0700
            Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 03:37 -0400
              Re: Fastest way to retrieve and write html contents to file Stephen Hansen <me+python@ixokai.io> - 2016-05-02 00:58 -0700
              Re: Fastest way to retrieve and write html contents to file Michael Torrie <torriem@gmail.com> - 2016-05-02 22:06 -0600
                Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-03 00:24 -0400
                Re: Fastest way to retrieve and write html contents to file Tim Chase <python.list@tim.thechases.com> - 2016-05-03 10:28 -0500
                Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-03 13:00 -0400
                Re: Fastest way to retrieve and write html contents to file Tim Chase <python.list@tim.thechases.com> - 2016-05-03 13:41 -0500
                Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-04 02:10 -0400
      Re: Fastest way to retrieve and write html contents to file Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-05-02 16:05 +1000
        Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 02:47 -0400
          Re: Fastest way to retrieve and write html contents to file Chris Angelico <rosuav@gmail.com> - 2016-05-02 17:19 +1000
            Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 21:51 -0400
              Re: Fastest way to retrieve and write html contents to file Chris Angelico <rosuav@gmail.com> - 2016-05-03 12:00 +1000
                Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 22:01 -0400
          Re: Fastest way to retrieve and write html contents to file Peter Otten <__peter__@web.de> - 2016-05-02 10:42 +0200
            Re: Fastest way to retrieve and write html contents to file DFS <nospam@dfs.com> - 2016-05-02 21:52 -0400
  Re: Fastest way to retrieve and write html contents to file Chris Angelico <rosuav@gmail.com> - 2016-05-02 14:53 +1000
  Re: Fastest way to retrieve and write html contents to file Tim Chase <python.list@tim.thechases.com> - 2016-05-02 07:38 -0500

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