Alan,

Yes, I meant that many things are effectively free these days. Some things are 
required to be distributed free by CopyLeft. But you can pay a nominal fee for 
say a CD of the software. You can pay for a bundle like you describe, perhaps 
including some consulting or warranties to keep you updated or who knows what?

I have been using a slew of programs lately in work for someone else who gave 
me access to software they paid for under some license. I mean statistical 
tools that are sold or licensed and have been around for ages. But I find I can 
cobble together my own programs and often find packages for free to do some 
parts. But as noted, I often have to process data that came from sources like 
SAS, MPLUS, STATA, SPSS and others. I often have to return the results of the 
calculations back in those formats. I have not felt the urge to buy the 
software but the day may come. My goal is to use a variety of tools that 
include R and Python unless the easiest path is ...

I am not in the market for buying or selling such things so I simply admit my 
lack of encyclopedic memory and experience.  I suggested that based on my 
knowledge, to date, I gather Python is mostly available for free and this might 
impact companies that wish to bend it to their needs rather than paying someone 
to give them an expensive tool. 

Many languages and other shared goods have ISO committees or Standards Bodies 
that document it or regulate changes. In the past, I often found companies like 
AT&T and HP attending all kinds of such bodies to influence the direction they 
take or be informed where they are headed. 

Some people have a photographic memory while some have a pornographic memory. 
Anyone with both is beyond dangerous 😉

-----Original Message-----
From: Tutor <tutor-bounces+avigross=verizon....@python.org> On Behalf Of Alan 
Gauld via Tutor
Sent: Thursday, November 22, 2018 7:54 PM
To: tutor@python.org
Subject: Re: [Tutor] origins bootstrapped.

On 22/11/2018 06:05, Steven D'Aprano wrote:

> I don't know of any non-free (free as in beer, or free as in speech) 
> implementations of Python. Can you elaborate?

There are several commercial distributions (as opposed to
implementations) of Python, that may be what Avi has in mind.
Some of these are commercial IDEs that include python as part of an integrated 
bundle - I think Blackadder is one such - and others are just uber distros like 
Enthought Entropy(?) which is a "supported" distro for scientific work - rather 
like Anaconda.

Others are in the Movie industry where it is either tied to a particular tool 
or again to a support arrangement.

The implementations are the standard open source code but the distribution is 
paid for, with the value add either in the toolset, the packaging or the 
support.

But maybe Avi means something different...

--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos


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