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Why did Quora choose Python for its development?

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  Why did Quora choose Python for its development? Beliavsky <beliavsky@aol.com> - 2011-05-20 09:39 -0700
    Re: Why did Quora choose Python for its development? Dotan Cohen <dotancohen@gmail.com> - 2011-05-20 23:47 +0300
    Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-22 15:01 +1000
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-22 10:44 +0300
      Re: Why did Quora choose Python for its development? Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-05-23 12:56 +0200
        Re: Why did Quora choose Python for its development? Duncan Booth <duncan.booth@invalid.invalid> - 2011-05-23 11:28 +0000
        Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 08:25 +0300
      Re: Why did Quora choose Python for its development? Kevin Walzer <kw@codebykevin.com> - 2011-05-24 10:09 -0400
        Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-25 00:43 +1000
        Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 19:11 +0300
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-22 19:20 +1100
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-22 15:47 +0300
    Re: Why did Quora choose Python for its development? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-05-22 12:09 -0700
    Re: Why did Quora choose Python for its development? Terry Reedy <tjreedy@udel.edu> - 2011-05-22 18:01 -0400
      Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-22 18:55 -0500
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-23 10:42 +1100
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-23 08:31 +0300
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-23 09:06 +0300
    Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-23 16:37 +1000
      Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-23 10:26 -0500
    Re: Why did Quora choose Python for its development? Terry Reedy <tjreedy@udel.edu> - 2011-05-23 02:37 -0400
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-23 19:05 +1100
    Re: Why did Quora choose Python for its development? Aleksandar Radulovic <alex@a13x.net> - 2011-05-23 08:52 +0000
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-23 11:49 +0300
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-23 12:01 +0300
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-23 12:41 +0300
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-23 20:58 +1100
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-23 21:16 +1100
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-23 14:17 +0300
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-23 22:32 +1100
    Re: Why did Quora choose Python for its development? Terry Reedy <tjreedy@udel.edu> - 2011-05-23 13:08 -0400
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-23 22:05 +0300
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-23 14:10 +0300
      Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-24 00:17 -0500
        Re: Why did Quora choose Python for its development? "D'Arcy J.M. Cain" <darcy@druid.net> - 2011-05-24 06:09 -0400
          Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-24 11:52 -0500
            Re: Why did Quora choose Python for its development? "D'Arcy J.M. Cain" <darcy@druid.net> - 2011-05-24 13:39 -0400
              Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-24 13:17 -0500
                Re: Why did Quora choose Python for its development? Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-05-27 15:48 +1200
                  Re: Why did Quora choose Python for its development? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-05-26 23:53 -0700
                  Re: Why did Quora choose Python for its development? Roy Smith <roy@panix.com> - 2011-05-27 09:47 -0400
                    Re: Why did Quora choose Python for its development? Karim <karim.liateni@free.fr> - 2011-05-27 22:10 +0200
              Re: Why did Quora choose Python for its development? "thegist@nospam.net" <thegist@nospam.net> - 2011-05-25 17:30 -0400
                Re: Why did Quora choose Python for its development? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-25 23:52 +0000
                  Re: Why did Quora choose Python for its development? "thegist@nospam.net" <thegist@nospam.net> - 2011-05-26 11:05 -0400
            Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-25 08:01 +1000
              Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-24 18:16 -0500
                Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-25 09:38 +1000
                  Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-24 20:48 -0500
              Re: Why did Quora choose Python for its development? Thorsten Kampe <thorsten@thorstenkampe.de> - 2011-05-25 09:31 +0200
                Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-25 07:01 -0500
                  Re: Why did Quora choose Python for its development? Terry Reedy <tjreedy@udel.edu> - 2011-05-25 12:54 -0400
                  Re: Why did Quora choose Python for its development? Ethan Furman <ethan@stoneleaf.us> - 2011-05-25 10:17 -0700
                    Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-25 14:14 -0500
                      Re: Why did Quora choose Python for its development? Matty Sarro <msarro@gmail.com> - 2011-05-25 17:19 -0400
                        Re: Why did Quora choose Python for its development? Neil Cerutti <neilc@norwich.edu> - 2011-05-26 12:44 +0000
                          Re: Why did Quora choose Python for its development? Roy Smith <roy@panix.com> - 2011-05-26 08:51 -0400
                            Re: Why did Quora choose Python for its development? Ben Finney <ben+python@benfinney.id.au> - 2011-05-26 23:11 +1000
                          Re: Why did Quora choose Python for its development? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-26 13:35 +0000
                      Re: Why did Quora choose Python for its development? RainyDay <andrei.avk@gmail.com> - 2011-05-25 17:15 -0700
                  Re: Why did Quora choose Python for its development? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-25 23:01 +0000
                    Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-25 22:00 -0500
                      Re: Why did Quora choose Python for its development? Ben Finney <ben@benfinney.id.au> - 2011-05-26 14:25 +1000
                        Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-26 10:36 -0500
                          Re: Why did Quora choose Python for its development? Terry Reedy <tjreedy@udel.edu> - 2011-05-26 16:03 -0400
                            Re: Why did Quora choose Python for its development? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-27 03:07 +0000
                              Re: Why did Quora choose Python for its development? Thorsten Kampe <thorsten@thorstenkampe.de> - 2011-05-27 10:10 +0200
                                Re: Why did Quora choose Python for its development? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-27 09:31 +0000
                                Re: Why did Quora choose Python for its development? Ethan Furman <ethan@stoneleaf.us> - 2011-05-27 10:12 -0700
                          Re: Why did Quora choose Python for its development? Karim <karim.liateni@free.fr> - 2011-05-26 22:27 +0200
                      Re: Why did Quora choose Python for its development? Ethan Furman <ethan@stoneleaf.us> - 2011-05-26 09:18 -0700
                  Re: Why did Quora choose Python for its development? Thorsten Kampe <thorsten@thorstenkampe.de> - 2011-05-26 10:24 +0200
              Re: Why did Quora choose Python for its development? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-25 23:25 +0000
            Re: Why did Quora choose Python for its development? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-05-24 23:00 -0700
              Re: Why did Quora choose Python for its development? Roy Smith <roy@panix.com> - 2011-05-25 07:36 -0400
                Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-25 21:55 +1000
                  Re: Why did Quora choose Python for its development? Roy Smith <roy@panix.com> - 2011-05-25 08:25 -0400
                Re: Why did Quora choose Python for its development? "D'Arcy J.M. Cain" <darcy@druid.net> - 2011-05-25 10:23 -0400
                  Re: Why did Quora choose Python for its development? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-25 14:56 +0000
                    Re: Why did Quora choose Python for its development? Matty Sarro <msarro@gmail.com> - 2011-05-25 11:43 -0400
                Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-26 00:26 +1000
        Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 19:10 +0300
        Re: Why did Quora choose Python for its development? "D'Arcy J.M. Cain" <darcy@druid.net> - 2011-05-24 13:22 -0400
        Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 11:08 +0300
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-24 14:34 +1100
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 08:39 +0300
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 09:00 +0300
    Re: Why did Quora choose Python for its development? Stefan Behnel <stefan_ml@behnel.de> - 2011-05-24 08:23 +0200
      Re: Why did Quora choose Python for its development? Kevin Walzer <kw@codebykevin.com> - 2011-05-24 10:50 -0400
        Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 19:18 +0300
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 11:10 +0300
    Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-24 18:20 +1000
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-24 19:55 +1100
    Re: Why did Quora choose Python for its development? "D'Arcy J.M. Cain" <darcy@druid.net> - 2011-05-24 06:05 -0400
      Re: Why did Quora choose Python for its development? Teemu Likonen <tlikonen@iki.fi> - 2011-05-24 16:18 +0300
        Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-24 11:50 -0500
          Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-25 03:30 +1000
            Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-24 12:56 -0500
              Re: Why did Quora choose Python for its development? Chris Angelico <rosuav@gmail.com> - 2011-05-25 07:53 +1000
                Re: Why did Quora choose Python for its development? John Bokma <john@castleamber.com> - 2011-05-24 17:00 -0500
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 19:10 +0300
    Re: Why did Quora choose Python for its development? "Octavian Rasnita" <orasnita@gmail.com> - 2011-05-24 19:10 +0300
    Re: Why did Quora choose Python for its development? "thegist@nospam.net" <thegist@nospam.net> - 2011-05-26 11:52 -0400
    Re: Why did Quora choose Python for its development? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-27 08:33 +1100
      Re: Why did Quora choose Python for its development? RainyDay <andrei.avk@gmail.com> - 2011-05-26 16:41 -0700

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#6152

From: "D'Arcy J.M. Cain" <darcy@druid.net>
> On Tue, 24 May 2011 09:00:14 +0300
> "Octavian Rasnita" <orasnita@gmail.com> wrote:
>> So, again, in Perl is just:
>> 
>> %d = @l;
>> 
>> Please tell me if Python has a syntax which is more clear than this for 
>> doing this thing.
> 
> How is that clear?  "Shorter" != "clearer."  A Python programmer
> looking at that sees line noise.  A Perl programmer looking at "d = dict
> ([a])" (or even "d = dict(a,)") sees something that has something to do
> with creating a dictionary.  At least he would know in which section of
> the manual to look for more information.


The Perl programmers usually don't need to look in the dictionary when they are creating programs.
Perl is harder to learn, but it is easier to use.

> Are Perl programmers aware of some imminent worldwide shortage of
> electrons that Python programmers are not?  Why is there this obsession
> with shortness?


A shorter code can be typed faster, obviously, and there are fewer possibility of appearing errors, but the shortage is not the most important thing.

The most important thing is that the chars @, $, or % are the same in all languages, while the English words used by the languages that use many such words are harder to remember especially for the non-native English speakers. Python is not a very bad language from this perspective like Java is though. :-)

In Perl the programmers can also use English words for some things, like $OUTPUT_AUTOFLUSH, but personally I never liked those things. Using $| instead is much shorter and clear, because I don't need to remember the English words like autoflush, or maybe it was just flush, or it was autoflush_output, or output_flush... something like $| can't be forgotten.

Yes, I know that the guys from Google would never like that since these chars are not "Googleable" :-)

Octavian

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#6154

From: "Daniel Kluev" <dan.kluev@gmail.com>
> On Tue, May 24, 2011 at 5:00 PM, Octavian Rasnita <orasnita@gmail.com> wrote:
>> And you are telling that in Perl should be used an even more complicated and
>> ugly syntax just for beeing the same as in Python just for showing that I am
>> wrong, but I was comparing just the shortness and cleraness of the code.
>>
>> So, again, in Perl is just:
>>
>> %d = @l;
> 
> Once again. Suppose we have array of key-value pairs (two-dimensional
> array),

This is a forced example to fit the way Python can do it with a clean syntax, but I don't think there are cases in which somebody wants to create hashes/dictionaries where the key is not a plain string but an array.

This is not a rare case, but a case that probably nobody needs, ever.

Octavian

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#6323

So when quora.com fails we can all say it is Python's fault?
Maybe they should have focused more on content instead of
the bits under the hood?

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#6344

On Wed, May 25, 2011 at 3:10 AM, Octavian Rasnita <orasnita@gmail.com> wrote:
>> Once again. Suppose we have array of key-value pairs (two-dimensional
>> array),
>
> This is a forced example to fit the way Python can do it with a clean syntax, but I don't think there are cases in which somebody wants to create hashes/dictionaries where the key is not a plain string but an array.
>
> This is not a rare case, but a case that probably nobody needs, ever.

This is far more popular case than converting flat lists into dicts in
Python world. In fact, I *never* had need to convert flat list instead
of properly structured one. Thats why we have both lists and tuples,
after all.
Sure, since perl does not support it at all, perl programmers do not
use it and resort to idea of "guess which values are keys by index"
due to lack of better approach, with need of obscure "=>"
pseudo-syntax to cover it up.

-- 
With best regards,
Daniel Kluev

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#6351

On May 26, 5:33 pm, Daniel Kluev <dan.kl...@gmail.com> wrote:
> On Wed, May 25, 2011 at 3:10 AM, Octavian Rasnita <orasn...@gmail.com> wrote:
> >> Once again. Suppose we have array of key-value pairs (two-dimensional
> >> array),
>
> > This is a forced example to fit the way Python can do it with a clean syntax, but I don't think there are cases in which somebody wants to create hashes/dictionaries where the key is not a plain string but an array.
>
> > This is not a rare case, but a case that probably nobody needs, ever.
>
> This is far more popular case than converting flat lists into dicts in
> Python world. In fact, I *never* had need to convert flat list instead
> of properly structured one. Thats why we have both lists and tuples,
> after all.

I agree that it's almost never needed to convert flat
lists. I've used python for over 10 years and I remember
exactly one time when I needed to do that. It turned out
that it's a bit tricky and hacky to do in python, in
the sense that it's hard to remember if I'll ever need
it again, but it will only take minutes to google it.

For example, in one piece of code I did recently I
created a dict of range tuples and counts from a sequential list, like
so:

ranges = [(x*width, (x+1)*width) for x in range(y)]
data = dict((x,0) for x in ranges)

A perl programmer would instead create a flat list
and then convert it to dict. And if he were new to
python he'd create a flat list and then be annoyed
that there's no quick and easy way to make it into
a dict.

Python way in this case is more structured and
disciplined, and the only "flaw" I can see is that
it doesn't meet expectations of perl programmers.

 -Rainy

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