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Re: Using filepath method to identify an .html page

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Date Tue, 22 Jan 2013 10:05:49 -0500
From Dave Angel <d@davea.name>
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On 01/22/2013 09:55 AM, Ferrous Cranus wrote:
> Τη Τρίτη, 22 Ιανουαρίου 2013 4:33:03 μ.μ. UTC+2, ο χρήστης Chris Angelico έγραψε:
>> On Wed, Jan 23, 2013 at 12:57 AM, Ferrous Cranus <nikos.gr33k@gmail.com> wrote:
>>
>>> Τη Τρίτη, 22 Ιανουαρίου 2013 3:04:41 μ.μ. UTC+2, ο χρήστης Steven D'Aprano έγραψε:
>>
>>>
>>
>>>> What do you expect int("my-web-page.html") to return? Should it return 23
>>
>>>> or 794 or 109432985462940911485 or 42?
>>
>>>
>>
>>> I expected a unique number from the given string to be produced so i could have a (number <=> string) relation. What does int( somestring ) is returning really? i don;t have IDLE to test.
>>
>>
>>
>> Just run python without any args, and you'll get interactive mode. You
>>
>> can try things out there.
>>
>>
>>
>>> This counter.py will work on a shared hosting enviroment, so absolutes paths are BIG and expected like this:
>>
>>>
>>
>>> /home/nikos/public_html/varsa.gr/articles/html/files/index.html
>>
>>
>>
>> That's not big. Trust me, modern databases work just fine with unique
>>
>> indexes like that. The most common way to organize the index is with a
>>
>> binary tree, so the database has to look through log(N) entries.
>>
>> That's like figuring out if the two numbers 142857 and 857142 are the
>>
>> same; you don't need to look through 1,000,000 possibilities, you just
>>
>> need to look through the six digits each number has.
>>
>>
>>
>>> 'pin' has to be a number because if i used the column 'page' instead, just imagine the database's capacity withholding detailed information for each and every .html requested by visitors!!!
>>
>>
>>
>> Not that bad actually. I've happily used keys easily that long, and
>>
>> expected the database to ensure uniqueness without costing
>>
>> performance.
>>
>>
>>
>>> So i really - really need to associate a (4-digit integer <=> htmlpage's absolute path)
>>
>>
>>
>> Is there any chance that you'll have more than 10,000 pages? If so, a
>>
>> four-digit number is *guaranteed* to have duplicates. And if you
>>
>> research the Birthday Paradox, you'll find that any sort of hashing
>>
>> algorithm is likely to produce collisions a lot sooner than that.
>>
>>
>>
>>> Maybe it can be done by creating a MySQL association between the two columns, but i dont know how such a thing can be done(if it can).
>>
>>>
>>
>>> So, that why i need to get a "unique" number out of a string. please help.
>>
>>
>>
>> Ultimately, that unique number would end up being a foreign key into a
>>
>> table of URLs and IDs. So just skip that table and use the URLs
>>
>> directly - much easier. In this instance, there's no value in
>>
>> normalizing.
>>
>>
>>
>> ChrisA
>
> I insist, perhaps compeleld, to use a key to associate a number to a filename.
> Would you help please?
>
> I dont know this is supposed to be written. i just know i need this:
>
> number = function_that_returns_a_number_out_of_a_string( absolute_path_of_a_html_file)
>
> Would someone help me write that in python coding? We are talkign 1 line of code here....
>

I gave you every piece of that code in my last response.  So you're not 
willing to compose the line from the clues?


-- 
DaveA

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Thread

Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 02:07 -0800
  Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 11:31 +0000
    Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 03:53 -0800
      Re: Using filepath method to identify an .html page Chris Angelico <rosuav@gmail.com> - 2013-01-22 23:26 +1100
    Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 04:02 -0800
      Re: Using filepath method to identify an .html page Lele Gaifax <lele@metapensiero.it> - 2013-01-22 13:22 +0100
      Re: Using filepath method to identify an .html page Dave Angel <d@davea.name> - 2013-01-22 07:29 -0500
        Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 04:47 -0800
          Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 04:50 -0800
          Re: Using filepath method to identify an .html page Chris Angelico <rosuav@gmail.com> - 2013-01-22 23:59 +1100
          Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 04:50 -0800
        Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 04:47 -0800
          Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 13:04 +0000
            Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 05:57 -0800
              Re: Using filepath method to identify an .html page Chris Angelico <rosuav@gmail.com> - 2013-01-23 01:33 +1100
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 06:55 -0800
                Re: Using filepath method to identify an .html page Dave Angel <d@davea.name> - 2013-01-22 10:05 -0500
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 07:21 -0800
                Re: Using filepath method to identify an .html page Chris Angelico <rosuav@gmail.com> - 2013-01-23 02:27 +1100
                Re: Using filepath method to identify an .html page Michael Torrie <torriem@gmail.com> - 2013-01-22 11:36 -0700
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:40 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:40 +0000
                Re: Using filepath method to identify an .html page Michael Torrie <torriem@gmail.com> - 2013-01-22 17:07 -0700
                Re: Using filepath method to identify an .html page MRAB <python@mrabarnett.plus.com> - 2013-01-23 00:40 +0000
                Re: Using filepath method to identify an .html page rusi <rustompmody@gmail.com> - 2013-01-22 18:55 -0800
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-23 02:50 +0000
                Re: Using filepath method to identify an .html page rusi <rustompmody@gmail.com> - 2013-01-22 19:04 -0800
                Re: Using filepath method to identify an .html page Chris Angelico <rosuav@gmail.com> - 2013-01-23 15:44 +1100
                Re: Using filepath method to identify an .html page Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-01-22 22:15 -0500
                Re: Using filepath method to identify an .html page MRAB <python@mrabarnett.plus.com> - 2013-01-23 03:35 +0000
                Re: Using filepath method to identify an .html page Michael Torrie <torriem@gmail.com> - 2013-01-22 22:10 -0700
                Re: Using filepath method to identify an .html page Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-01-23 01:13 -0500
                RE: Using filepath method to identify an .html page "Leonard, Arah" <Arah.Leonard@bruker-axs.com> - 2013-01-23 16:33 +0000
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-23 08:51 -0800
                RE: Using filepath method to identify an .html page "Leonard, Arah" <Arah.Leonard@bruker-axs.com> - 2013-01-23 18:19 +0000
                Re: Using filepath method to identify an .html page Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-01-23 18:36 +0000
                Re: Using filepath method to identify an .html page Dave Angel <d@davea.name> - 2013-01-23 17:46 -0500
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-23 08:51 -0800
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:34 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:35 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:34 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:36 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:36 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:37 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:39 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:38 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:39 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:37 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:38 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:39 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:36 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:35 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:37 +0000
                Re: Using filepath method to identify an .html page Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-01-22 16:44 -0500
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 07:21 -0800
                Re: Using filepath method to identify an .html page Chris Angelico <rosuav@gmail.com> - 2013-01-23 02:07 +1100
                Re: Using filepath method to identify an .html page Peter Otten <__peter__@web.de> - 2013-01-22 16:25 +0100
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 07:46 -0800
                Re: Using filepath method to identify an .html page Dave Angel <d@davea.name> - 2013-01-22 11:11 -0500
                RE: Using filepath method to identify an .html page "Leonard, Arah" <Arah.Leonard@bruker-axs.com> - 2013-01-22 16:23 +0000
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 10:13 -0800
                Re: Using filepath method to identify an .html page Michael Torrie <torriem@gmail.com> - 2013-01-22 11:43 -0700
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 10:13 -0800
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 07:46 -0800
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 07:59 -0800
                Re: Using filepath method to identify an .html page Chris Angelico <rosuav@gmail.com> - 2013-01-23 03:11 +1100
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 10:26 -0800
                Re: Using filepath method to identify an .html page MRAB <python@mrabarnett.plus.com> - 2013-01-22 18:49 +0000
                Re: Using filepath method to identify an .html page Michael Torrie <torriem@gmail.com> - 2013-01-22 11:49 -0700
                Re: Using filepath method to identify an .html page Dave Angel <d@davea.name> - 2013-01-22 14:00 -0500
                Re: Using filepath method to identify an .html page Peter Otten <__peter__@web.de> - 2013-01-22 20:16 +0100
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 23:25 -0800
                Re: Using filepath method to identify an .html page Michael Torrie <torriem@gmail.com> - 2013-01-23 08:25 -0700
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-23 07:56 -0800
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-23 07:56 -0800
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 23:25 -0800
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 10:26 -0800
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 07:59 -0800
                Re: Using filepath method to identify an .html page John Gordon <gordon@panix.com> - 2013-01-22 16:55 +0000
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 10:07 -0800
                Re: Using filepath method to identify an .html page John Gordon <gordon@panix.com> - 2013-01-22 18:37 +0000
                Re: Using filepath method to identify an .html page Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-01-22 17:01 -0500
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 23:23 +0000
                Re: Using filepath method to identify an .html page rusi <rustompmody@gmail.com> - 2013-01-22 09:33 -0800
                Re: Using filepath method to identify an .html page Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-01-22 17:54 +0000
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 10:23 -0800
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 22:45 +0000
                Re: Using filepath method to identify an .html page Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-22 22:44 +0000
                Re: Using filepath method to identify an .html page Mitya Sirenef <msirenef@lightbird.net> - 2013-01-22 19:23 -0500
                Re: Using filepath method to identify an .html page Ferrous Cranus <nikos.gr33k@gmail.com> - 2013-01-22 06:55 -0800
  Re: Using filepath method to identify an .html page Michael Torrie <torriem@gmail.com> - 2013-01-22 11:21 -0700
  Re: Using filepath method to identify an .html page alex23 <wuwei23@gmail.com> - 2013-01-22 17:27 -0800

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