Re: Developing Commercial Applications in Python

2005-01-10 Thread bit_bucket5
See http://www.journynx.com/
Commercial timesheet app written in Python.

[EMAIL PROTECTED] wrote:
 Hello All,
 I am trying to convince my client to use Python in his new product.
He
 is worried about the license issues. Can somebody there to point me
any
 good commercial applications developed using python ?. The licence
 clearly says Python can be used for commercial applications. Is there
 any other implications like that of GPL to make the source open ?
 Thanks for any help.
 eeykay

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Re: Software archeology (was Re: Developing Commercial Applications in Python)

2005-01-08 Thread Aahz
In article [EMAIL PROTECTED],
Stephen Waterbury  [EMAIL PROTECTED] wrote:
Aahz wrote:
 In article [EMAIL PROTECTED],
 Stephen Waterbury  [EMAIL PROTECTED] wrote:

Also see Python Success Stories:  http://pythonology.org/success

A notable example is Verity's search engine -- see
http://python.oreilly.com/news/PythonSS.pdf
 
 Actually, your statement is slightly inaccurate.  The Verity search
 engine is more than fifteen years old in its core technology; it was
 started as a LISP project at IIRC MIT.  (At one point I was much amused
 to look at the C source code and find car() and cdr() functions.)  As of
 my last information, Python isn't used at all in or with the Verity
 search engine.  What you're referring to is the Verity Ultraseek engine,
 originally written and owned by Infoseek before getting transferred to
 Verity through a series of dot-bomb transactions.  The Ultraseek engine
 doesn't use Python, but Python is used to control the engine, and I think
 much of the spider is written in Python.

Actually, Aahz didn't add anything useful that wasn't explained better
in the article itself, pointing to which was the purpose of my post,
but he is correct:  Python was *not* used to write the Verity search
engine ... how the hell do these stupid rumors get started anyhow?? ;).
Just read the article, dammit! :)

You're quite correct that I added little useful information, but seeing
as I used to work at Verity, I couldn't resist adding some hopefully
interesting and/or amusing trivia.  Especially the LISP bit.
-- 
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19. A language that doesn't affect the way you think about programming,
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Re: Developing Commercial Applications in Python

2005-01-07 Thread Nick Coghlan
Stephen Waterbury wrote:
A notable example is Verity's search engine -- see
http://python.oreilly.com/news/PythonSS.pdf
Not to mention the kind words of the current reigning king of the search engine 
world. . .

Cheers,
Nick.
--
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Re: Developing Commercial Applications in Python

2005-01-07 Thread Philippe C. Martin
 
 Can somebody there to point me any good commercial applications
 developed using python ?
 


Only time will tell if SCF is a _good_ commercial application, but it
will be released on my site as soon as I get my export license from the
BIS.

_and_ I will certainly announce it on this list :-)

Regards,

Philippe




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SnakeCard LLC
www.snakecard.com
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Software archeology (was Re: Developing Commercial Applications in Python)

2005-01-07 Thread Aahz
In article [EMAIL PROTECTED],
Stephen Waterbury  [EMAIL PROTECTED] wrote:
 [EMAIL PROTECTED] writes:
 
Can somebody there to point me any good commercial applications
developed using python ?

Also see Python Success Stories:  http://pythonology.org/success

A notable example is Verity's search engine -- see
http://python.oreilly.com/news/PythonSS.pdf

Actually, your statement is slightly inaccurate.  The Verity search
engine is more than fifteen years old in its core technology; it was
started as a LISP project at IIRC MIT.  (At one point I was much amused
to look at the C source code and find car() and cdr() functions.)  As of
my last information, Python isn't used at all in or with the Verity
search engine.  What you're referring to is the Verity Ultraseek engine,
originally written and owned by Infoseek before getting transferred to
Verity through a series of dot-bomb transactions.  The Ultraseek engine
doesn't use Python, but Python is used to control the engine, and I think
much of the spider is written in Python.
-- 
Aahz ([EMAIL PROTECTED])   * http://www.pythoncraft.com/

19. A language that doesn't affect the way you think about programming,
is not worth knowing.  --Alan Perlis
-- 
http://mail.python.org/mailman/listinfo/python-list


Re: Software archeology (was Re: Developing Commercial Applications in Python)

2005-01-07 Thread Stephen Waterbury
Aahz wrote:
In article [EMAIL PROTECTED],
Stephen Waterbury  [EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] writes:
Can somebody there to point me any good commercial applications
developed using python ?
Also see Python Success Stories:  http://pythonology.org/success
A notable example is Verity's search engine -- see
http://python.oreilly.com/news/PythonSS.pdf
Actually, your statement is slightly inaccurate.  The Verity search
engine is more than fifteen years old in its core technology; it was
started as a LISP project at IIRC MIT.  (At one point I was much amused
to look at the C source code and find car() and cdr() functions.)  As of
my last information, Python isn't used at all in or with the Verity
search engine.  What you're referring to is the Verity Ultraseek engine,
originally written and owned by Infoseek before getting transferred to
Verity through a series of dot-bomb transactions.  The Ultraseek engine
doesn't use Python, but Python is used to control the engine, and I think
much of the spider is written in Python.
Actually, Aahz didn't add anything useful that wasn't explained
better in the article itself, pointing to which was the purpose
of my post, but he is correct:  Python was *not* used to write
the Verity search engine ... how the hell do these stupid rumors
get started anyhow?? ;).  Just read the article, dammit!  :)
Cheers,
Steve
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Re: Developing Commercial Applications in Python

2005-01-06 Thread Nick Vargish
[EMAIL PROTECTED] writes:

 Can somebody there to point me any good commercial applications
 developed using python ?

Python is used in several games, including Temple of Elemental Evil
and the forthcoming Civilization 4. Humungous Games, which makes
software for children, is also using Python. Sorry if games would give
your boss the wrong impression...

Most commercial software houses don't advertise details of their
development platforms.

Nick

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#  sigmask  ||  0.2  ||  20030107  ||  public domain  ||  feed this to a python
print reduce(lambda x,y:x+chr(ord(y)-1),' Ojdl!Wbshjti!=obwAcboefstobudi/psh?')
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Re: Developing Commercial Applications in Python

2005-01-06 Thread Stephen Waterbury
Nick Vargish wrote:
[EMAIL PROTECTED] writes:
Can somebody there to point me any good commercial applications
developed using python ?
Python is used in several games  ...
Also see Python Success Stories:  http://pythonology.org/success
A notable example is Verity's search engine -- see
http://python.oreilly.com/news/PythonSS.pdf
Steve
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Re: Developing Commercial Applications in Python

2005-01-06 Thread Duncan Booth
Nick Vargish wrote:

 [EMAIL PROTECTED] writes:
 
 Can somebody there to point me any good commercial applications
 developed using python ?
 
 Python is used in several games, including Temple of Elemental Evil
 and the forthcoming Civilization 4. Humungous Games, which makes
 software for children, is also using Python. Sorry if games would give
 your boss the wrong impression...

Also Startrek Bridge Commander, and Uru: Ages beyond Myst.
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Re: Developing Commercial Applications in Python

2005-01-06 Thread Steve Hughes

Can somebody there to point me any good commercial applications
developed using python ?
Yet another game but it's a huge one with a massive DB behind it.
http://www.eve-online.com
--
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Developing Commercial Applications in Python

2005-01-03 Thread eeykay
Hello All,
I am trying to convince my client to use Python in his new product. He
is worried about the license issues. Can somebody there to point me any
good commercial applications developed using python ?. The licence
clearly says Python can be used for commercial applications. Is there
any other implications like that of GPL to make the source open ?
Thanks for any help.
eeykay

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Re: Developing Commercial Applications in Python

2005-01-03 Thread Craig Ringer
On Mon, 2005-01-03 at 19:00, [EMAIL PROTECTED] wrote:
 Hello All,
 I am trying to convince my client to use Python in his new product. He
 is worried about the license issues. Can somebody there to point me any
 good commercial applications developed using python ?. The licence
 clearly says Python can be used for commercial applications. Is there
 any other implications like that of GPL to make the source open ?

My understanding is that you're dead safe with Python its self, as AFAIK
you can even bundle (possibly modified) the Python sourcecode into your
application. You'd simply need to keep an eye on the licenses of any
extensions you used, like ReportLab, PIL, mx, database interfaces,
twisted, etc. Many are licensed under the same license as Python or an
MIT-like license, but of course some Python extensions are not and you
would need to consider that.

--
Craig Ringer

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Re: Developing Commercial Applications in Python

2005-01-03 Thread It's me
Shaw-PTI (www.pti-us.com) uses Python in their software.   See:
http://www.pti-us.com/pti/news/index.cfm and search 2004 PSS/E User Group
Meeting

[EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
 Hello All,
 I am trying to convince my client to use Python in his new product. He
 is worried about the license issues. Can somebody there to point me any
 good commercial applications developed using python ?. The licence
 clearly says Python can be used for commercial applications. Is there
 any other implications like that of GPL to make the source open ?
 Thanks for any help.
 eeykay



-- 
http://mail.python.org/mailman/listinfo/python-list


Re: Developing Commercial Applications in Python

2005-01-03 Thread Richards Noah (IFR LIT MET)
 [EMAIL PROTECTED] wrote in message
 news:[EMAIL PROTECTED]
  Hello All,
  I am trying to convince my client to use Python in his new product. He
  is worried about the license issues. Can somebody there to point me any
  good commercial applications developed using python ?. The licence
  clearly says Python can be used for commercial applications. Is there
  any other implications like that of GPL to make the source open ?
  Thanks for any help.
  eeykay
 
It's me [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
 Shaw-PTI (www.pti-us.com) uses Python in their software.   See:
 http://www.pti-us.com/pti/news/index.cfm and search 2004 PSS/E User Group
 Meeting


Begging your pardon, but a better resource would be the brochure available
(http://www.pti-us.com/PTI/company/brochures/PSSE.pdf).  It appears that the
program was probably (originally) written in C/C++ (using MFC for the GUI),
and now employs Python for adding modules and scripting support.  Very
interesting stuff :)


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RE: Developing Commercial Applications in Python

2005-01-03 Thread Sells, Fred
At Sunrise Software International, we build commercial applications for
Cabletron and the Florida DMV.  This was ~10 years ago; so no useful docs
available, but we had no problems with license.

-Original Message-
From: Richards Noah (IFR LIT MET) [mailto:[EMAIL PROTECTED]
Sent: Monday, January 03, 2005 12:20 PM
To: python-list@python.org
Subject: Re: Developing Commercial Applications in Python


 [EMAIL PROTECTED] wrote in message
 news:[EMAIL PROTECTED]
  Hello All,
  I am trying to convince my client to use Python in his new product. He
  is worried about the license issues. Can somebody there to point me any
  good commercial applications developed using python ?. The licence
  clearly says Python can be used for commercial applications. Is there
  any other implications like that of GPL to make the source open ?
  Thanks for any help.
  eeykay
 
It's me [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
 Shaw-PTI (www.pti-us.com) uses Python in their software.   See:
 http://www.pti-us.com/pti/news/index.cfm and search 2004 PSS/E User Group
 Meeting


Begging your pardon, but a better resource would be the brochure available
(http://www.pti-us.com/PTI/company/brochures/PSSE.pdf).  It appears that the
program was probably (originally) written in C/C++ (using MFC for the GUI),
and now employs Python for adding modules and scripting support.  Very
interesting stuff :)


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Re: Developing Commercial Applications in Python

2005-01-03 Thread Aahz
In article [EMAIL PROTECTED],
 [EMAIL PROTECTED] wrote:

I am trying to convince my client to use Python in his new product. He
is worried about the license issues. Can somebody there to point me any
good commercial applications developed using python ?. The licence
clearly says Python can be used for commercial applications. Is there
any other implications like that of GPL to make the source open ?

Are you looking to embed Python as a scripting language or to write the
software in Python?
-- 
Aahz ([EMAIL PROTECTED])   * http://www.pythoncraft.com/

19. A language that doesn't affect the way you think about programming,
is not worth knowing.  --Alan Perlis
-- 
http://mail.python.org/mailman/listinfo/python-list


Re: Developing Commercial Applications in Python

2005-01-03 Thread Richards Noah (IFR LIT MET)

It's me [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]

 Richards Noah (IFR LIT MET) [EMAIL PROTECTED] wrote in
message
 news:[EMAIL PROTECTED]
 
  Begging your pardon, but a better resource would be the brochure
available
  (http://www.pti-us.com/PTI/company/brochures/PSSE.pdf).  It appears that
 the
  program was probably (originally) written in C/C++ (using MFC for the
 GUI),
  and now employs Python for adding modules and scripting support.  Very
  interesting stuff :)
 
 

 It was actually developed in Fortran some 35 years ago.   Then migrated to
 F77.   Then added a C/C++ layer to sit ontop.   Then converted to API
based.
 Then added a Python layer on top.

 The only thing unfortunate is that they went with MFC on the newest
version.
 Yuck!


Hahaha, sounds like a party to me.  And they didn't even throw in a layer of
Lisp for good effort?  Too bad, if you ask me :)


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Re: Developing Commercial Applications in Python

2005-01-03 Thread Terry Reedy

[EMAIL PROTECTED] wrote in message 
news:[EMAIL PROTECTED]
 I am trying to convince my client to use Python in his new product. He
 is worried about the license issues. Can somebody there to point me any
 good commercial applications developed using python ?. The licence
 clearly says Python can be used for commercial applications.

We are in a weird catch-22 type situation here.  Because the license is so 
open, companies that use Python just use it.  No payment, no curtesy 
registration, no verifiable trace unless they care to disclose (and most 
don't).

The license could be paraphrased as Don't sue us or do anything that would 
cause anyone else to sue us and we won't sue you.  There is a posted 
request for thank you donations but not enough commercial users do so to 
even hire one full time programmer, let alone a lawyer (above the bare 
minimum required for PSF to legally function).  The PSF is about as far 
from the RIAA and MPAA as possible.

There are Python Success Stories at the Python site and elsewhere (try 
Google on the newsgroup.  You could also agree to be responsible for any 
legal action initiated by the PSF not due to obvious malfeance, like trying 
to register a copyright on the Python source.  Or you could suggest that 
they purchase a license with a donation to the PSF.

Terry J. Reedy



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Re: Developing Commercial Applications in Python

2005-01-03 Thread vincent wehren
[EMAIL PROTECTED] wrote:
Hello All,
I am trying to convince my client to use Python in his new product. He
is worried about the license issues. Can somebody there to point me any
good commercial applications developed using python ?. The licence
clearly says Python can be used for commercial applications. Is there
any other implications like that of GPL to make the source open ?
Thanks for any help.
eeykay
At CSB-System AG, we use Python extensively as embedded scripting 
language throughout the ERP system we develop (fields of application: 
system automation, GUI scripting, programmable user exits, reporting, 
data access/replication, autotests, and apart from that, everywhere we 
need something done fast ;-).

I'm sure that its liberal license was among the main drivers to use it 
in the first place!

--
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Re: Developing Commercial Applications in Python

2005-01-03 Thread Stephen Waterbury
It's me wrote:
Shaw-PTI (www.pti-us.com) uses Python in their software.
... but the Python Powered logo is conspicuous by its
absence from their site.  Too bad that some commercial
exploiters of Python don't advertise that fact more often.
Every little bit helps!
Steve
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Re: Developing Commercial Applications in Python

2005-01-03 Thread Roy Smith
Stephen Waterbury  [EMAIL PROTECTED] wrote:
 Shaw-PTI (www.pti-us.com) uses Python in their software.

... but the Python Powered logo is conspicuous by its
absence from their site.  Too bad that some commercial
exploiters of Python don't advertise that fact more often.

Companies use all sorts of technologies to produce their products.  I
have no idea who Shaw-PTI is or what they do, but I'm sure they also
use other languages, and web servers, and operating systems, and
telephones and office furniture and pencil sharpeners.  They're all
just tools.  You don't expect a company to waste space on their web
site advertising which brand of pencil sharpener they use, so why
would you expect they would do so for a programming language?

Sometimes you see web sites with Powered by IBM or Powered by Sun
or whatever.  I'm sure behind every one of those is a deal cut with
the supplier to promote their name in return for some favorable terms
on a contract.
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Re: Developing Commercial Applications in Python

2005-01-03 Thread Steve Holden
[EMAIL PROTECTED] wrote:
Hello All,
I am trying to convince my client to use Python in his new product. He
is worried about the license issues. Can somebody there to point me any
good commercial applications developed using python ?. The licence
clearly says Python can be used for commercial applications. Is there
any other implications like that of GPL to make the source open ?
Thanks for any help.
eeykay
No. The Python license explicitly allows you to distribute derived works 
(i.e. Python applications including the standard compiler, or modified 
versions of the compiler) without obliging you to disclose the source 
code in the way that the GPL does.

The only obligation the license places on you are
a) You must retain the original copyright notices and
b) If you *do* distribute modified versions, you must include a brief 
description of your modifications.

I believe the Python License Version 2, as found at
  http://www.python.org/moin/PythonSoftwareFoundationLicenseV2Easy
is about as simple as a license can get, yet still the Foundation 
receives inquiries from people whose lawyers are unconvinced there are 
no hidden problems. Of course, IANAL, so the lawyers could be right, but 
at least the INTENT is pretty obvious.

Also beware if you plan to use The Python License for your own 
software, and read

  http://www.python.org/moin/PythonSoftwareFoundationLicenseFaq
if you are thinking of doing so. Of course, there are many contributions 
which were licensed to the Foundation for inclusion in the distribution. 
The Foundation is currently in the process of regularizing the license 
stack thus created, by negotiating with individual contributors to 
ensure that a compatible license is initially granted to the PSF.

Nothing is currently believed to prohibit the Foundation from licensing 
current releases on the terms that it does, but I should include a 
disclaimer that this is *not* an official statement from the 
Foundation, rather an explanation from one of its directors (an 
all-too-fallible human being) about what's lately been happening in the 
licensing space.

regards
 Steve
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Python Web Programming  http://pydish.holdenweb.com/
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Re: Developing Commercial Applications in Python

2005-01-03 Thread Christophe Cavalaria
[EMAIL PROTECTED] wrote:

 Hello All,
 I am trying to convince my client to use Python in his new product. He
 is worried about the license issues. Can somebody there to point me any
 good commercial applications developed using python ?. The licence
 clearly says Python can be used for commercial applications. Is there
 any other implications like that of GPL to make the source open ?
 Thanks for any help.
 eeykay
Troika games use Python in their games. It seems you can even get the
source .py files for Vampires: Bloodlines :)
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Re: Developing Commercial Applications in Python

2005-01-03 Thread Mike Meyer
It's me [EMAIL PROTECTED] writes:

 Well, now that they are API based, they can easily add any script language
 they so wish through SWIG (www.swig.org).

 Maybe not LISP.   SNOBOL would be the right thing to do.  (*NOT*)

SWIG generates wrappers for GUILE, which is Scheme, which looks enough
like LISP to fool most people. It's the GNU extensible embeddable
language.

mike
-- 
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Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.
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RE: Developing Commercial Applications in Python

2005-01-03 Thread Delaney, Timothy C (Timothy)
Christophe Cavalaria wrote:

 [EMAIL PROTECTED] wrote:
 
 Hello All,
 I am trying to convince my client to use Python in his new product.
 He is worried about the license issues. Can somebody there to point
 me any good commercial applications developed using python ?. The
 licence clearly says Python can be used for commercial applications.
 Is there any other implications like that of GPL to make the source
 open ? Thanks for any help. eeykay

 Troika games use Python in their games. It seems you can even get the
 source .py files for Vampires: Bloodlines :)

Absolutely - it's a slightly modified version of 2.1.2. Troika also used
Python for the Temple of Elemental Evil.

I even compiled psyco to work with Bloodlines and modified the .py
source to call it - worked perfectly well, but didn't give me any
significant performance improvement :( I'm CPU limited, so I thought it
was worth a try.

I'm wondering if I can hack Python 2.4 into Bloodlines ... the biggest
problem is that Bloodlines used .vpk files for packaging, and I believe
the major modifications to 2.1 are to allow these to be read. I've
already extracted all of these though ...

Anyway, back to the original question:
http://www.python.org/doc/faq/general.html#are-there-copyright-restricti
ons-on-the-use-of-python

Tim Delaney
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