date:20131021

Re: Printing a drop down menu for a specific field.

2013-10-21 Thread Steven D'Aprano

On Mon, 21 Oct 2013 09:07:17 +0300, Νίκος Αλεξόπουλος wrote:

>>  for row in data:
>>  (host, city, useros, browser, ref, hits, lastvisit) = row
>>  lastvisit = lastvisit.strftime('%A %e %b, %H:%M')
>>
>>  print( "" )
>>  for item in (host, city, useros, browser, ref, hits,
>>  lastvisit):
>>  print( " %s " % item
>>  )
[...]
>> In the above code i print the record of the mysql table visitors in
>> each row like this:  http://superhost.gr/?show=log&page=index.html
>>
>> Now, i wish to write the same thing but when it comes to print the
>> 'lastvisit' field to display it in a  tag so all prior
>> visits for the same host appear in a drop down menu opposed to as i
>> have it now which i only print the datetime of just the latest visit of
>> that host and not all its visit datetimes.
>>
>> I hope i made it clear what i want to achieve.
> 
> 
> Any help would be appreciated.

Step 1:

Decide what counts as "the same visitor". Is it...?

- anyone with the same IP address?
- anyone with the same IP address and the same useros?
- anyone with the same IP address, the same useros, and the same browser?
- something else?

Step 2:

Scan the data, pulling out the record of the same unique visitor, and 
collecting the dates for that record. For example, you might write code 
like this:

# Untested, probably buggy.
visitors = []
records = []
for row in data:
host, city, useros, browser, ref, hits, lastvisit = row
if (host, ref) in visitors:
# Seen this visitor before. Add the date to that record.
record_no = visitors.index((host, ref))
else:
# New visitor, never seen before!
visitors.append((host, ref))
records.append([])
record_no = len(visitors)
records[record_no].append(lastvisit)

There may be more efficient ways to do the same thing, if you can think 
of a way to associate a list of values with a visitor key.

However you do it, by the time you have finished, you'll have a list of 
unique visitors, and a corresponding list containing the date of each of 
their visits. 

Step 3: When you go to build the table:

- identify which unique visitor this record represents
- look up the list of dates from that record
- build a  menu from that list of dates
- insert the menu into the table

and you're done.

-- 
Steven
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Re: Python was designed (was Re: Multi-threading in Python vs Java)

2013-10-21 Thread Chris Angelico

On Mon, Oct 21, 2013 at 5:44 PM, Peter Cacioppi
 wrote:
> I've written a fair bit of code in pure C, C++, C#, Java and now getting 
> there in Python.
>
> The difference between C# and Java is fairly minor.
>
> The others have large and significant differences between them. Garbage 
> collectors or not is huge. Exceptions or not is huge.  Dynamic or static 
> typing is huge. Language support for polymorphism or not is huge.
>
> This is just one language feature. I could go on and on. The idea that the 
> differences between these languages is just syntactic sugar and aesthetics is 
> so profoundly misguided that I can only assume that this misconception was 
> proposed as a bizarre form of trolling.

I don't think anyone's denying that there are differences. If there
weren't, we'd all be using the same language! But most of what you
said isn't object orientation. Garbage collection is huge, but it's
nothing to do with OOP. Exceptions are completely separate again. (And
exception *usage* is separate from exceptions. C++ and PHP both
support exceptions, but most operations don't raise them. Python, on
the other hand, uses exceptions for everything.)

ChrisA
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Re: skipping init and using exploiting a class member instead

2013-10-21 Thread feedthetroll

Am Montag, 21. Oktober 2013 06:31:36 UTC+2 schrieb Peter Cacioppi:
> That sound you hear is Roy Smith hitting the nail on the head.

PLONK: The sound you hear, when a context-less troll is hitting the bottom of 
my killfile.
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Animated PNG Vs Gif: 120fr 3D Python Powered Logo

2013-10-21 Thread Metallicow

Discussion:

Dear Guido and friends,

Noticed this is gaining alot more support lately.
http://www.kickstarter.com/projects/374397522/apngasm-foss-animated-png-tools-and-apng-standardi

After testing my gif and apng Animated 3D Python Powered Logos...
The difference is real obvious at first. apng wins with speed(gif is limited to
say 1/10sec and apng can do at least 1/80sec) and transparency/color
quality(tested on windows ATM)

Mozilla based browsers, Opera, Chrome(extension), Xnview and some other popular
apps have integrated rendering apng functionality so far...
I wouldn't tend to think that the top browser devs were wrong in their choice.
It would be nice to receive the Guido *nod of approval*... attached samples are
under PSF License or your better suggestion, BDFL.

Hopefully there will be a libpng implementation and pyAPNG stuff(s) worked on
also soon.

Attachments:
Animated Python Powered Logo - 120 frames
1. gif format
2. apng format(if it doesn't animate in your browser, then apng is not
supported yet)

If you like what you see, then consider supporting the devs working on this and
help make it a standard or start devving yourselves.

@pyDEVs: Any news on this yet...?

Python Samples Downloads available:
Animated Python Powered Logo - 120 frames
1 gif & 1 apng samples in download.
http://www.4shared.com/archive/MzoW-0Kt/AnimatedPythonPoweredLogoGifVs.html

I can't seem to attach a file in this group, thus the waiting DL. Apparently, i
am not qualified enough or something here(at least on this group)..., but then
again if every python fanatic that posts spam here did the same, then the world
would turn into eggs.

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