RE: Python 2.5
- From: Jamal Mazrui <empower@xxxxxxxxx>
- To: programmingblind@xxxxxxxxxxxxx
- Date: Tue, 23 Jun 2009 11:14:46 -0400 (EDT)
Python 2.6 is compiled with Microsoft Visual C++ 2008, whereas 2.5 is
compiled with 2003. This results in some incompatibilities with modules
that are not pure Python. py2exe, for example, does not work well with
2.6. I'm on that list, and 2.6 has been a nightmare for folks.
Jamal
On Fri, 19
Jun 2009, Ken Perry wrote:
> Date: Fri, 19 Jun 2009 20:33:54 -0400
> From: Ken Perry <whistler@xxxxxxxxxxxxx>
> Reply-To: programmingblind@xxxxxxxxxxxxx
> To: programmingblind@xxxxxxxxxxxxx
> Subject: RE: Python 2.5
>
>
> What incompatibility is there with 2.6? If you're talking beginner there is
> no incompatibilities because they will not be using libraries that are
> precompiled they will be using the base libraries and some that you can get
> and compile and 2.6 works fine with almost all libraries that work for 2.4
> and 2.5. Where does 2.6 become a problem when it's for a beginner. 3.0 on
> the other hand becomes a problem but that is a whole other ball game.
>
> Ken
>
> -----Original Message-----
> From: programmingblind-bounce@xxxxxxxxxxxxx
> [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Jamal Mazrui
> Sent: Friday, June 19, 2009 10:31 AM
> To: programmingblind@xxxxxxxxxxxxx
> Subject: RE: Python 2.5
>
> As I said, if you know what you are doing -- as you do -- go for it. A
> beginning Python programmer would not be using the with statement or
> care that a large sort is a bit faster in Python 3.0. The
> incompatibilities, however, will trip them up.
>
> Jamal
> -- Original Messages --
> Jun 2009, Ken Perry wrote:
>
> > Date: Thu, 18 Jun 2009 20:16:35 -0400
> > From: Ken Perry <whistler@xxxxxxxxxxxxx>
> > Reply-To: programmingblind@xxxxxxxxxxxxx
> > To: programmingblind@xxxxxxxxxxxxx
> > Subject: RE: Python 2.5
> >
> >
> >
> > This is not true. I agree that 2.5 is the most used right now but I
> totally
> > disagree that there are no real new features. The multiprocessing is a
> big
> > one and the with statement is another big one. What I do so that it don't
> > interfere with other programs is install it with 2.5 they will run side by
> > side all you do is install it and relink the python application with
> > python2.5 Then when you want to run a python application in 2.6 you
> either
> > put #!/usr/bin/python2.6 in the top or you use python2.6 bla.py.
> >
> > Those are not the only two big changes either they are just the two
> biggest
> > that are making a difference in some of the things I am writing. I will
> > also point out that I have found it runs a small bit faster on a bubble
> sort
> > running 100,000 random numbers through the loop. They are the same run of
> > numbers for each test and it consistently comes out a small bit faster
> than
> > 2.5. It comes out even faster if you use some of the advanced looping
> > features.
> >
> > Also the garbage collector is a bit smarter which makes for a much better
> > time for all.
> >
> > Ken
> >
> > -----Original Message-----
> > From: programmingblind-bounce@xxxxxxxxxxxxx
> > [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Jamal Mazrui
> > Sent: Thursday, June 18, 2009 6:18 AM
> > To: ProgrammingBlind@xxxxxxxxxxxxx
> > Subject: Python 2.5
> >
> > To any beginning Python programmers, this is the version I recommend using
> > rather than 2.6 or 3.x. If you know what you are doing and have a
> > specific need to use the later versions, then go for it. Otherwise, you
> > will probably encounter compatibility problems with popular 3rd party
> > Python libraries, including py2exe -- the one that lets you create
> > independent executables on Windows. In my opinion, there is almost no
> > functionality that one loses by using 2.5 at this time. 2.6 and 3.x are
> > mainly a matter of syntax changes and re-organization of built-in modules
> > so far.
> >
> > This is not a disapproval of the direction the Python language is
> > going -- just a reality check on what is working well at present, so
> > beginners can minimize headaches.
> >
> > Jamal
> >
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