Problem checking an existing browser cookie

[Nik the Greek]

On 31 Αύγ, 11:07, Nik the Greek <nikos.the.gr... at gmail.com> wrote:
> On 30 Αύγ, 20:50, MRAB <pyt... at mrabarnett.plus.com> wrote:
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> > On 30/08/2010 18:16, Nik the Greek wrote:
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> > > On 30 Αύγ, 19:41, MRAB<pyt... at mrabarnett.plus.com>  wrote:
> > >> On 30/08/2010 04:33, Nik the Greek wrote:
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> > >>> On 30 Αύγ, 06:12, MRAB<pyt... at mrabarnett.plus.com>    wrote:
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> > >>>> This part:
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> > >>>>        ( not mycookie or mycookie.value != 'nikos' )
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> > >>>> is false but this part:
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> > >>>>        re.search( r'(msn|yandex|13448|spider|crawl)', host ) is None
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> > >>>> is true because host doesn't contain any of those substrings.
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> > >>> So, the if code does executed because one of the condition is true?
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> > >>> How should i write it?
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> > >>> I cannot think clearly on this at all.
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> > >>> I just wan to tell it to get executed  ONLY IF
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> > >>> the cookie values is not 'nikos'
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> > >>> or ( don't knwo if i have to use and or 'or' here)
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> > >>> host does not contain any of the substrings.
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> > >>> What am i doign wrong?!
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> > >> It might be clearer if you reverse the condition and say:
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> > >>       me_visiting = ...
> > >>       if not me_visiting:
> > >>           ...
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> > > I don't understand what are you trying to say
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> > > Please provide a full example.
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> > > You mean i should try it like this?
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> > > unless ( visitor and visitor.value == 'nikos' ) or re.search( r'(msn|
> > > yandex|13448|spider|crawl)', host ) not None:
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> > > But isnt it the same thing like the if?
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> > My point is that the logic might be clearer to you if you think first
> > about how you know when you _are_ the visitor.
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> Well my idea was to set a cookie on my browser with the name visitor
> and a value of "nikos" and then check each time that cooki. if value
> is "nikos" then dont count!
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> I could also pass an extra url string likehttp://webville.gr?show=nikos
> and check that but i dont like the idea very much of giving an extra
> string each time i want to visit my webpage.
> So form the 2 solution mentioned the 1st one is better but cant come
> into action for some reason.
>
> Aprt form those too solution i cant think of anyhting else that would
> identify me and filter me out of the actual guest of my website.
>
> I'm all ears if you can think of something else.

Is there any other way for the webpage to identify me and filter me
out except checking a cookie or attach an extra url string to the
address bar?