For GUI programming I often use Python bindings for Qt.
There are two competing bindings, PySide and PyQt.
Ideally I like to have applications that can use either. This way, if I get a
problem I can try with the other bindings: if I still get the problem, then it
is probably me; but if I don't
On Thursday, June 15, 2017 at 1:47:00 PM UTC+1, larry@gmail.com wrote:
> I am trying to use sqlite
>
> $ python2.7
> Python 2.7.10 (default, Feb 22 2016, 12:13:36)
> [GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>>
On Thursday, June 15, 2017 at 9:50:18 AM UTC+1, Michele Simionato wrote:
> Thanks. I suspected the culprit was executescript, but I did not see it
> documented in
> https://docs.python.org/3/library/sqlite3.html#connection-objects.
Although the standard library's sqlite3 module is useful, person
I think the problem that Deborah has encountered is a more general one on
Windows: many pip-installable packages assume that a C compiler is
available.
Now an "obvious" solution is for pip to recognise that a C compiler is
needed and give an appropriate error message. But while that may reduce
con
The ? is indeed for variable substitution, but AFAIK only for field values, not
for table names, which is why your first example doesn't work and your second
and third examples do work.
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On Monday, May 1, 2017 at 9:47:10 PM UTC+1, jlad...@itu.edu wrote:
> On Monday, May 1, 2017 at 11:27:01 AM UTC-7, Robert L. wrote:
> [no Python]
>
> Do you ever plan to ask any questions about Python? Or are you just using a
> few lines of code as a fig leaf for the race baiting that you post in
Windows users (quite reasonably IMO) expect installs to "just work".
If Python needs extra bits it should ask the user if it can go get them and if
they say Yes it should do just that. (And this should actually work -- unlike
maybe, the Python 3.5 Windows installer.)
And as for searching Google
Suppose I have a project with an application .py file and various module .py
files all in the same directory, and after lots of refactoring and other
changes the modules contain lots of unused stuff. Is there a lint tool that
will spot the unused things so that I can get rid of them?
I've tried
On Thursday, November 24, 2016 at 7:35:03 PM UTC, bream...@gmail.com wrote:
> It's all here https://learnpythonthehardway.org/book/nopython3.html although
> I strongly suggest that people have large piles of sedatives to hand before
> reading the article. Does me a favour though, i've been looki
opment)
>
> https://www.amazon.com/Programming-Python-Prentice-Software-Development/dp/0132354187/ref=sr_1_1?ie=UTF8&qid=1476901015&sr=8-1&keywords=rapid+qt+python
>
> Inside the book the apps are been developed in PyQt
>
> Regards,
> Dim
>
> On 10/19/2016 03:49 PM,
On Wednesday, October 19, 2016 at 11:08:15 AM UTC+1, Paul Moore wrote:
> I'm looking to write a GUI application in Python (to run on Windows, using
> Python 3.5). The application is just a relatively thin wrapper around a
> browser - it's presenting an existing web application, just in its own w
On Tuesday, October 18, 2016 at 9:09:46 PM UTC+1, Demosthenes Koptsis wrote:
> My favorite GUIs are PyQt and wxPython.
>
> I prefer PyQt than PySide because PySide seem to me like an abandoned
> project.
[snip]
It does seem that PySide 1 isn't making any visible progress.
However, PySide 2 for
On Tuesday, October 18, 2016 at 9:04:48 AM UTC+1, pozz wrote:
> Il 18/10/2016 09:42, Mark Summerfield ha scritto:
[snip]
> Why don't you use a GUI design tool? Better... how can you design a GUI
> without seeing it? For me it's very difficult to "code the GUI".
PySide/PyQt
On Windows I use Python 3.4 + PySide 1.2.4 (Qt 4.8). I have found this
very reliable and use it for both my personal projects and for my
commercial products. I don't use a GUI design tool but you could use Qt
Designer to visually draw your GUI since PySide can read the .ui files it
out
The ZeroSpinBox is a tiny example designed to show how the signal/slot
mechanism works. It is just a QSpinBox with the addition of remembering
how many times (all the) ZeroSpinBox(es) have had a 0 value.
Nowadays the connections would be made with a new improved syntax:
self.connect(self, SIGNAL
On Monday, October 10, 2016 at 5:53:37 AM UTC+1, Mahan Marwat wrote:
> I want to know what will be your approach creating a solid/reliable
> application in Python?
> i.e
> 1. Which GUI framework will you use i.e PyQT or what? (will you make it work
> removing the window default border)
> 2. What
Thanks v. much: I'll use the Apache 2.0 license.
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Hi,
I'm developing a small Python software library that I want to publish as free
software under the same terms as Python itself.
I notice that a few of Python's own files begin like this:
# Copyright 2007 XXX. All Rights Reserved.
# Licensed to PSF under a Contributor Agreement.
Is this form
Hi,
I use setuptools (in my case with cx_Freeze) to package some of my Python
applications.
As part of this process a build\exe.win-amd64-3.4 dir is created with all the
necessary files, and then a separate dist\ dir is created with the
distributable package (e.g., a .msi file).
I'd like to r
On Monday, June 27, 2016 at 3:12:34 AM UTC+1, MRAB wrote:
[snip]
> > Not sure that wxPython is really any different in that respect, and Tkinter
> > doesn't feel Pythonic to me, either -- considering how it's Tk at heart.
> > So what's the alternative? There really is no good Python-based GUI t
On Thursday, June 16, 2016 at 8:22:33 AM UTC+1, Mark Summerfield wrote:
> On Thursday, June 16, 2016 at 3:54:53 AM UTC+1, jlad...@itu.edu wrote:
> > I am developing a data acquisition system for a custom device that
> > communicates over USB. On the host computer side, I am usi
On Thursday, June 16, 2016 at 3:54:53 AM UTC+1, jlad...@itu.edu wrote:
> I am developing a data acquisition system for a custom device that
> communicates over USB. On the host computer side, I am using PyQt5.4. My
> Linux box has both Qt4 and Qt5 installed on it. I assume that PyQt5.4
> comp
On Thursday, June 9, 2016 at 8:28:47 AM UTC+1, Nagy László Zsolt wrote:
> class Test:
> def __init__(self):
> self._parent = None
>
> @property
> def parent(self):
> return self._parent
>
> @parent.setter
> def set_parent(self, new_parent):
> self._pare
Thanks, that works! And also thanks for the excellent explanations of each part.
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Hi,
I have a setup roughly like this:
import ctypes
import sys
Lib = ctypes.cdll.LoadLibrary("libthing")
c_char_pp = ctypes.POINTER(ctypes.c_char_p)
LibOpen = Lib.Open
LibOpen.argtypes = (ctypes.c_int, # argc
c_char_pp) # argv
LibOpen.restype = ctypes.c_int
You're quite right! For some reason I have a blind-spot about mixins, but they
are the perfect solution. Thanks:-)
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Sometimes I want to spread a class over multiple files.
My primary use case is when I create a "Model" class to reflect an entire SQL
database. I want a model instance to provide a single point of access to
the database, but the database has many tables each requiring its own methods
since they
Sometimes I want to spread a class over multiple files.
My primary use case is when I create a "Model" class to reflect an entire SQL
database. I want a model instance to provide a single point of access to the
database, but the database has many tables each requiring its own methods since
they
On Monday, February 8, 2016 at 10:50:19 AM UTC, Mark Summerfield wrote:
> If you need 32-bit Python on Windows my advice is to install 3.4. If you need
> 32-bit and 64-bit Python on Windows, then I think it will only work with 3.4
> (or older), but not with 3.5's new installer.
>
If you need 32-bit Python on Windows my advice is to install 3.4. If you need
32-bit and 64-bit Python on Windows, then I think it will only work with 3.4
(or older), but not with 3.5's new installer.
I have tried installing 3.5.0 and 3.5.1 on several machines both 32- and 64-bit
Windows. The 3
be run as
> part of a larger application's installer for apps using or extending
> Python.
I can't see any mention of this in
https://docs.python.org/dev/whatsnew/3.5.html
Best wishes,
--
Mark Summerfield, Qtrac Ltd, www.qtrac.eu
Python and PyQt/PySide - training and consul
Just wondering if anyone is doing Python 3 bindings for the IUP GUI library?
The library is pure C and GUI only (so not a giant framework), and uses native
controls. It comes with Lua bindings and I believe there are third-party Ruby
bindings.
http://webserver2.tecgraf.puc-rio.br/iup/
--
https:/
On Thursday, December 11, 2014 4:53:04 AM UTC, iMath wrote:
> I think the user interface shouldn't be freezed when using
> concurrent.futures.ThreadPoolExecutor here,as it executes asynchronously ,
> but it doesn't meet my expectations,anyone can explain why ? any other
> solutions here to not l
6 PM UTC, Chris Angelico wrote:
> On Thu, Nov 27, 2014 at 1:05 AM, wrote:
> > On Wed, Nov 26, 2014, at 06:29, Mark Summerfield wrote:
> >> TypeError: type() argument 1 must be string, not unicode
> >
> > If this is a bug, maybe it is one in type() itself - I get the same
I've done a fair bit of Python GUI programming, so here's my 2c.
Tkinter is small, fast, and v. frustrating to use (but maybe the latter is just
me). It looks good on Windows (from 8.5), ugly on Linux, and OK on Mac (but you
have to do a fair bit of if MAC do this else do that.
The next three w
Hi,
Here are two programs both executed with Python 2.7 with the enum34 backport
and their output. Is this a bug or intended behavior? (It may well be intended
to help ensure that the class name is ASCII for Python 2; but maybe it would be
nicer to check a unicode to see if it is ASCII and if s
On Saturday, 2 August 2014 20:58:59 UTC+1, Ben Finney wrote:
> Steven D'Aprano writes:
>
> > If you need instances which carry state, then object is the wrong
> > class.
Fair enough.
> Right. The 'types' module provides a SimpleNamespace class for the
> common "bag of attributes" use case::
>
On Saturday, 2 August 2014 08:46:04 UTC+1, Mark Lawrence wrote:
> On 02/08/2014 07:45, Mark Summerfield wrote:
>
[snip]
>
> > Suggestion #1: Make IDLE start in the user's home directory.
>
> Entirely agree. Please raise an enhancement request on the bug tracker
&g
On Saturday, 2 August 2014 08:14:08 UTC+1, Marko Rauhamaa wrote:
> Mark Summerfield:
>
> > Suggestion #1: Make IDLE start in the user's home directory.
>
> > Suggestion #2: Make all the turtle examples begin "from turtle import
> > *" so no
Last week I spent a couple of days teaching two children (10 and 13 -- too big
an age gap!) how to do some turtle graphics with Python. Neither had programmed
Python before -- one is a Minecraft ace and the other had done Scratch.
Suggestion #1: Make IDLE start in the user's home directory.
Sug
On Monday, 17 March 2014 08:44:23 UTC, Mark Summerfield wrote:
> Hi,
>
>
>
> What is the correct idiom for getting the path to a top-level module in 3.3
> and 3.4 when the module might be frozen?
>
>
>
> At the moment I'm using this:
>
>
Hi,
What is the correct idiom for getting the path to a top-level module in 3.3 and
3.4 when the module might be frozen?
At the moment I'm using this:
if getattr(sys, "frozen", False):
path = os.path.dirname(sys.executable)
else:
path = os.path.dirname(__file__)
Thanks!
On Thursday, 23 January 2014 14:09:19 UTC, Antoine Pitrou wrote:
> Hi,
>
>
>
> Mark Summerfield qtrac.plus.com> writes:
>
> >
>
> > My guess is that on Debian, the packagers install a full SQLite 3 and the
>
> Python package uses that. But on
&
Hi,
On my Debian stable 64-bit system, SQLite3 has FTS (full text search) enabled
(although at version 3 rather than the recommended version 4):
Python 3.2.3 (default, Feb 20 2013, 14:44:27) [GCC 4.7.2] on linux2
Type "copyright", "credits" or "license()" for more information.
>>> import sqlite3
On Tuesday, November 19, 2013 5:22:36 PM UTC, Thomas Heller wrote:
> Am 19.11.2013 17:58, schrieb Mark Summerfield:
>
> > Hi,
>
> >
>
> > I am using ctypes to access a function in a DLL using Python 3.3
>
> > 32-bit on Windows 7 64-bit:
>
>
Hi,
I am using ctypes to access a function in a DLL using Python 3.3 32-bit on
Windows 7 64-bit:
dplGetPageText = dpl.DPLGetPageText
dplGetPageText.argtypes = (ctypes.c_int, ctypes.c_int)
dplGetPageText.restype = ctypes.c_wchar_p
Python returns this as a str with the raw bytes already decoded.
Hi,
My new Python 3-based book, "Python in Practice", is due out next week.
The book is aimed at people who can already program in Python and want
to take their coding further.
The book's web page (http://www.qtrac.eu/pipbook.html) has the table of
contents and a link to a free PDF of Chapter 1
Hi,
It seems that in concurrent.futures, ProcessPoolExecutor() can be used
with no args and default to max_workers=multiprocessing.cpu_count();
but for ThreadPoolExecutor() the max_workers arg is required. Is this
intentional? (I'm using Python 3.2.)
--
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Hi,
I have Python 3.2 with Tcl/Tk 8.5, but there doesn't seem to be a
ttk.Spinbox widget even though that widget is part of Tcl/Tk 8.5:
http://www.tcl.tk/man/tcl8.5/TkCmd/ttk_spinbox.htm
Why is that?
--
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Thanks for your thoughtful replies.
I don't use altinstall because using --prefix is sufficient to get a
locally built Python.
Both your suggestions require root (or sudo) and changing the system
itself. Whereas I was hoping to just build a local Python and install
my own Tcl/Tk in its lib and si
Hi,
There are many options for writing desktop GUI applications with
Python and I'd like to explore some of them. However, to do this I
need to be able to test various Python 3.x X GUI toolkit y.z
combinations.
With PyQt4 this is easy. (Example given at the end.)
I'd like to be able to do the sa
Hi,
I have multiple Pythons locally installed so that I can test against
different versions. (On a 64-bit Debian stable system.)
All of them use the system's Tcl/Tk installation. However, I want to
make some of them use a locally build Tcl/Tk that has a small
customization.
There doesn't seem to
les" in What's New in alphabetical order?
--
Mark Summerfield, Qtrac Ltd, www.qtrac.eu
C++, Python, Qt, PyQt - training and consultancy
Programming in Python 3" - ISBN 0321680561
http://www.qtrac.eu/py3book.html
--
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On Jan 27, 2:42 am, "Thomas L. Shinnick" wrote:
> At 08:17 PM 1/26/2011, Chris wrote:
>
> >I have a class (A, for instance) that possesses a boolean (A.b, for
> >instance) that is liable to change over an instance's lifetime.
>
> >Many of the methods of this class (A.foo, for instance) should not
On Jan 24, 5:09 pm, santosh hs wrote:
> Hi All,
> i am beginner to python please tell me which is the best available
> reference for beginner to start from novice
If you want to learn Python 3 and have some prior programming
experience (in any modern procedural or object oriented language), you
m
On Mon, 17 Jan 2011 09:23:39 -0500
"R. David Murray" wrote:
> On Mon, 17 Jan 2011 08:33:42 +, Mark Summerfield
> wrote:
> > from ..Graphics import Xpm
> > SVG = 1
> >
> > I can do the relative import with Python 3.0 and 3.1 but not with
> > 3.2
2011, 08:32:59)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from Graphics.Vector import *
Traceback (most recent call last):
File "", line 1, in
File "Graphics/Vector/Sv
ResourceWarning: unclosed file <_io.TextIOWrapper name='/dev/null'
mode='a' encoding='UTF-8'>
which looks pretty good:-)
However, I hit a problem with relative imports not working (compared
with 3.1). I have to go now but will try to produce a small example if I
can.
might add:
"The xml.etree.ElementTree now raises an
xml.etree.ElementTree.ParseError when a parse fails; previously
it raised a xml.parsers.expat.ExpatError."
It would also be nice to mention this in the ElementTree module's
documentation for the
On 3 Dec, 01:17, Antoine Pitrou wrote:
> Le Tue, 01 Dec 2009 06:03:36 -0800, Mark Summerfield a écrit :
>
> > I've produced a 4 page document that provides a very concise summary of
> > Python 2<->3 differences plus the most commonly used new Python 3
> > featu
On 2 Dec, 21:28, David H Wild wrote:
> In article
> <9d290ad6-e0b8-4bfa-92c8-8209c7e93...@a21g2000yqc.googlegroups.com>,
> Mark Summerfield wrote:
>
> > > There is a typographical fault on page 4 of this pdf file. The letter
> > > "P" is mis
On 3 Dec, 01:17, Antoine Pitrou wrote:
> Le Tue, 01 Dec 2009 06:03:36 -0800, Mark Summerfield a écrit :
>
> > I've produced a 4 page document that provides a very concise summary of
> > Python 2<->3 differences plus the most commonly used new Python 3
> > featu
On 2 Dec, 20:59, MRAB wrote:
> Mark Summerfield wrote:
> > On 2 Dec, 19:28, David H Wild wrote:
> >> In article
> >> <351fcb4c-4e88-41b0-a0aa-b3d63832d...@e23g2000yqd.googlegroups.com>,
> >> Mark Summerfield wrote:
>
> >>> I only j
On 2 Dec, 22:49, "John Posner" wrote:
> On Wed, 02 Dec 2009 13:34:11 -0500, Carsten Haese
>
> wrote:
>
> > With string interpolation, you don't need to do that, either.
> '%*d' % (8,456)
> > ' 456'
>
> Thanks, Carsten and Mark D. -- I'd forgotten about the use of "*" in
> minimum-fie
On 2 Dec, 19:28, David H Wild wrote:
> In article
> <351fcb4c-4e88-41b0-a0aa-b3d63832d...@e23g2000yqd.googlegroups.com>,
> Mark Summerfield wrote:
>
> > I only just found out that I was supposed to give a different URL:
> >http://www.informit.com/promotio
On Dec 2, 4:22 pm, Mark Summerfield wrote:
> On Dec 2, 11:31 am, "Martin P. Hellwig"
> wrote:
>
> > MarkSummerfieldwrote:
>
> > > It is available as a free PDF download (no registration or anything)
> > > from InformIT's website. Here
On Dec 2, 11:31 am, "Martin P. Hellwig"
wrote:
> MarkSummerfieldwrote:
>
> > It is available as a free PDF download (no registration or anything)
> > from InformIT's website. Here's the direct link:
> >http://ptgmedia.pearsoncmg.com/imprint_downloads/informit/promotions/...
>
>
> Very handy! Am I
On Dec 2, 11:20 am, Wolodja Wentland
wrote:
> On Wed, Dec 02, 2009 at 00:10 -0800, Mark Summerfield wrote:
> > On 1 Dec, 18:30, Lie Ryan wrote:
> > > Also, I'm not sure what this change is referring to:
> > > Python 2 Python 3
> > >
On Dec 2, 8:53 am, Mark Dickinson wrote:
> On Dec 2, 8:01 am, MarkSummerfield wrote:
>
> > On 1 Dec, 17:50, Mark Dickinson wrote:
> > > My only quibble is with the statement on the first page that
> > > the 'String % operator is deprecated'. I'm not sure that's
> > > true, for all values of 'dep
On Dec 1, 2:03 pm, Mark Summerfield wrote:
> I've produced a 4 page document that provides a very concise summary
> of Python 2<->3 differences plus the most commonly used new Python 3
> features. It is aimed at existing Python 2 programmers who want to
> start writing Pyt
On 1 Dec, 23:52, John Bokma wrote:
> Mark Summerfield writes:
> > It is available as a free PDF download (no registration or anything)
> > from InformIT's website. Here's the direct link:
> >http://ptgmedia.pearsoncmg.com/imprint_downloads/informit/promotions/...
On 1 Dec, 21:55, Terry Reedy wrote:
> Mark Summerfield wrote:
> > I've produced a 4 page document that provides a very concise summary
> > of Python 2<->3 differences plus the most commonly used new Python 3
> > features. It is aimed at existing Python 2 programme
On 1 Dec, 18:30, Lie Ryan wrote:
> On 12/2/2009 1:03 AM, Mark Summerfield wrote:
>
>
>
> > I've produced a 4 page document that provides a very concise summary
> > of Python 2<->3 differences plus the most commonly used new Python 3
> > features. It is a
On 1 Dec, 17:50, Mark Dickinson wrote:
> On Dec 1, 2:03 pm, Mark Summerfield wrote:
>
> > I've produced a 4 page document that provides a very concise summary
> > of Python 2<->3 differences plus the most commonly used new Python 3
> > features.
>
> Very
I've produced a 4 page document that provides a very concise summary
of Python 2<->3 differences plus the most commonly used new Python 3
features. It is aimed at existing Python 2 programmers who want to
start writing Python 3 programs and want to use Python 3 idioms rather
than those from Python
Hi,
I'm delighted to announce that a new edition of my Python 3 book is
now available in the U.S.
"Programming in Python 3 (Second Edition):
A Complete Introduction to the Python Language"
ISBN 0321680561
http://www.qtrac.eu/py3book.html
The book has been fully revised and updated and now covers
Hi,
A new edition of my Python 3 book will be available in the U.S. next
month, and elsewhere in December or January:
"Programming in Python 3 (Second Edition):
A Complete Introduction to the Python Language"
ISBN 0321680561
http://www.qtrac.eu/py3book.html
The book is aimed at a wide audience,
Hi,
I'm just wondering why <, <=, >=, and > are not supported by
collections.OrderedDict:
>>> d1 = collections.OrderedDict((("a",1),("z",2),("k",3)))
>>> d2 = d1.copy()
>>> d2["z"] = 4
>>> d1 == d2
False
>>> d1 < d2
Traceback (most recent call last):
File "", line
On 8 May, 13:56, Peter Otten <__pete...@web.de> wrote:
> Mark Summerfield wrote:
> > On 8 May, 08:19, Peter Otten <__pete...@web.de> wrote:
> >> MarkSummerfieldwrote:
> >> > I had a quick search & didn't find anything _nice_ that produced
>
values are shared between all instances of the same class:
>
> >>> class A:
>
> ... x = Attribute("x", 42, lambda *a: True)
> ...>>> a = A()
> >>> b = A()
> >>> a.x, b.x
> (42, 42)
> >>> a.x = "yadda"
> >>> a.x, b.x
>
> ('yadda', 'yadda')
>
> Peter
Yes. I did think of trying to create the closures dynamically the
first time the getter or setter was called---but that _is_ getting
ugly, so I'll give it up:-)
Thanks!
--
Mark Summerfield, Qtrac Ltd, www.qtrac.eu
C++, Python, Qt, PyQt - training and consultancy
"Programming in Python 3" - ISBN 0137129297
--
http://mail.python.org/mailman/listinfo/python-list
[snip]
> By the way, your Attribute descriptor stores the value for all instances of
> A in the same variable...
>
> Peter
You're right.
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http://mail.python.org/mailman/listinfo/python-list
it.)
> I am not opposed to adding a little well-considered protection to some
> attributes where mistakes are prone to happen and/or dangerous, but it
> is futile to try to stop access entirely. There's just too many back
> doors.
Sure, but I like the fact that there is no "
= Attribute("a", 5, lambda *a: True)
b = Attribute("b", 5, lambda *a: True)
>>> a = A()
>>> b = B()
>>> a.a,a.b,b.a,b.b
(5, 5, 5, 5)
>>> a.a=1;a.b=2;b.a=3;b.b=4
>>> a.a,a.b,b.a,b.b
(1, 2, 3, 4)
--
Mark Summerfield, Qtrac Ltd, www.qtrac.eu
C++, Python, Qt, PyQt - training and consultancy
"Programming in Python 3" - ISBN 0137129297
--
http://mail.python.org/mailman/listinfo/python-list
ner=None):
if instance is None:
return self
return self.__getter(instance)
def __set__(self, instance, value):
if self.__setter is None:
raise AttributeError("'{0}' is read-only".format(
self.__name__))
On 20 Dec, 00:32, "Colin J. Williams" wrote:
> Thomas Heller wrote:
> > Mark Summerfield schrieb:
> >> Just a follow-up to say that the book has now been published in the
> >> U.S.
> >> It is now in stock at InformIT, and should reach other stores, e
On 19 Dec, 19:52, excord80 wrote:
> On Dec 4, 2:42 pm, Alan G Isaac wrote:
>
> > Mark Summerfield wrote:
> > > "Programming in Python 3:
> > > A Complete Introduction to the Python Language"
> > > ISBN 0137129297
> > >http://www.qtrac.eu/
shows a validation technique that combines class decorators with
descriptors.)
On 4 Dec, 15:02, Mark Summerfield wrote:
> Now that Python 3 final has been released I thought it would be a good time
> to mention that there's a new book to go with it:
>
> "Programming in
On 2008-12-04, Dotan Cohen wrote:
> 2008/12/4 Mark Summerfield <[EMAIL PROTECTED]>:
> > Now that Python 3 final has been released I thought it would be a good
> > time to mention that there's a new book to go with it:
> >
> > "Programming in Python 3
eful (although small and basic) programs after reading
chapter 1, and then go on to create larger and more sophisticated programs
as they work through the chapters.
--
Mark Summerfield, Qtrac Ltd, www.qtrac.eu
--
http://mail.python.org/mailman/listinfo/python-list
On 7 Aug, 21:10, Mike Driscoll <[EMAIL PROTECTED]> wrote:
> On Aug 7, 1:12 pm, Beliavsky <[EMAIL PROTECTED]> wrote:
>
>
>
> > On Aug 6, 4:08 pm, Mike Driscoll <[EMAIL PROTECTED]> wrote:
>
> > > On Aug 6, 2:56 pm, Edward Cormier <[EMAIL PROTECTED]> wrote:
>
> > > > Which computer books are the best
On 12 Oct, 09:17, Paul Rubin <http://[EMAIL PROTECTED]> wrote:
> Mark Summerfield <[EMAIL PROTECTED]> writes:
> > Below is a PEP proposal for a sorteddict. ...
>
> Is this proposal dead? I'd been meaning to post some thoughts which I
> still haven't gotte
On 26 Sep, 18:59, Raymond Hettinger <[EMAIL PROTECTED]> wrote:
> [Mark Summerfield]
>
> > Below is a PEP proposal for a sorteddict. It arises out of a
> > discussion on this list that began a few weeks ago with the subject of
> > "An ordered dictionary for t
On 27 Sep, 08:32, Duncan Booth <[EMAIL PROTECTED]> wrote:
> Paul Hankin <[EMAIL PROTECTED]> wrote:
> >> A key which is in dict must be either in __keycache or in __addkeys, but
> >> never in both.
>
> > Yes, I'm sorry: you're right.
>
> > But there's a different bug: if you delete a key that's not
On 26 Sep, 16:20, Paul Hankin <[EMAIL PROTECTED]> wrote:
> On Sep 26, 3:24 pm, Mark Summerfield <[EMAIL PROTECTED]>
> wrote:
>
> > On 26 Sep, 14:59, Paul Hankin <[EMAIL PROTECTED]> wrote:
>
> > > On Sep 26, 2:46 pm, Duncan Booth <[EMAIL PROTECTED]
On 26 Sep, 14:59, Paul Hankin <[EMAIL PROTECTED]> wrote:
> On Sep 26, 2:46 pm, Duncan Booth <[EMAIL PROTECTED]> wrote:
>
> > Paul Hankin <[EMAIL PROTECTED]> wrote:
> > > More flexibly, keep a set of inserted keys that haven't yet been
> > > included in the sorted list, and a set of deleted keys tha
On 26 Sep, 13:22, Antoon Pardon <[EMAIL PROTECTED]> wrote:
> On 2007-09-26, Mark Summerfield <[EMAIL PROTECTED]> wrote:
>
>
>
> > On 26 Sep, 11:27, Hrvoje Niksic <[EMAIL PROTECTED]> wrote:
> >> Mark Summerfield <[EMAIL PROTECTED]> writes:
>
On 26 Sep, 11:27, Hrvoje Niksic <[EMAIL PROTECTED]> wrote:
> Mark Summerfield <[EMAIL PROTECTED]> writes:
> > On 26 Sep, 09:51, Hrvoje Niksic <[EMAIL PROTECTED]> wrote:
> >> Duncan Booth <[EMAIL PROTECTED]> writes:
> >> > I that's the p
On 26 Sep, 09:51, Hrvoje Niksic <[EMAIL PROTECTED]> wrote:
> Duncan Booth <[EMAIL PROTECTED]> writes:
> > I that's the point though: you can't write one implementation that has good
> > performance for all patterns of use
>
> An implementation of sorted dict using a balanced tree as the
> underlyin
On 25 Sep, 22:33, Paul Hankin <[EMAIL PROTECTED]> wrote:
> On Sep 25, 9:55 pm, Mark Summerfield <[EMAIL PROTECTED]>
> wrote:
>
> > ...
> > class sorteddict(dict):
>
> > ...
> > if self.__keys is None:
> >
On 25 Sep, 20:28, Paul Hankin <[EMAIL PROTECTED]> wrote:
> On Sep 25, 7:58 pm, Steven Bethard <[EMAIL PROTECTED]> wrote:
>
>
>
> > > Paul Hankin wrote:
> > > ...
> > > class sorteddict(dict):
> > > "A sorted dictionary"
> > > def __init__(self, arg=None, cmp=None, key=None, reverse=False):
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