🌐 Mailman 3 March 2010 - Python-list - python.org

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Re: Python and Tkinter Programming by John Grayson
by Peter May 29, 2010

May 29, 2010

On Jan 13, 11:19 am, Ethan Furman <et...(a)stoneleaf.us> wrote: > Greetings! > > I am hoping to acquire a book on Python and Tkinter, and found this one. > However, it was published in 2000 for Python 1.52... > > Can somebody who has this book comment its continued relevance? Is it > still useful for Python 2.5 and Tk 8.4? Is it *very* useful? > > Comments appreciated! > > ~Ethan~ I have a copy - which I haven't read now for some years :-) But it was an excellent introduction to using Python and Tkinter and depending on your level of experience, I would highly recommend it even now to anybody who is just beginning to use Python and Tkinter. In fact, I still loan it to any friends who are just starting out with Python and want to do their first GUI. Besides, the book is mainly about using Python with Tkinter - and Tkinter hasn't changed that much since 2000, so I believe it is just as relevant today as it was back then. The fact it was written back when Python was 1.52 is probably not relevant either as it isn't a book about learning Python (all such books quickly become 'dated' given the speed at which Python develops) but rather producing GUIs using Python and Tkinter - so it still does an excellent job for that even though I have abandoned the GUI application framework that John provides in his book (I used it once for my first GUI, but these days use Pmw more for my GUIs). Peter

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Python is cool!!
by Jose Manuel May 10, 2010

May 10, 2010

I have been learning Python, and it is amazing .... I am using the tutorial that comes with the official distribution. At the end my goal is to develop applied mathematic in engineering applications to be published on the Web, specially on app. oriented to simulations and control systems, I was about to start learning Java but I found Python which seems easier to learn that Java. Would it be easy to integrate Python in Web pages with HTML? I have read many info on Internet saying it is, and I hope so .... Any opinion

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Getting a Python program to run of off a flash drive?
by Abethebabe May 9, 2010

May 9, 2010

I wanted to know if there was a way I could get a Python program to run off of my flash drive as soon as the computer (Windows) detected the device? For example I could have a a simple program that would create a text document on the computers desktop when my flash drive is detected.

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Re: Python is cool!!
by Patrick Maupin May 8, 2010

May 8, 2010

On Mar 23, 3:12 pm, Tim Golden <m...(a)timgolden.me.uk> wrote: > I can't say I thought *very* hard before sending that but... > The OP asked for "integrate Python in Web Pages with HTML" > which I understood -- perhaps wrongly -- to mean: run Python > in the browser. The only two ways I'm aware of doing that > in Python are the undersupported Python-as-IE-scripting-language > and IronPython/Silverlight. If I had to run Python in a browser, the first thing I would do is turn to Pyjamas: http://pyjs.org/ Regards, Pat

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Re: Interacting With Another Script
by alex23 April 25, 2010

April 25, 2010

Victor Subervi <victorsube...(a)gmail.com> wrote: > > There's a program (vpopmail) that has commands which, when called, request > > input ("email address", "password", etc.) from the command line. I would > > like to build a TTW interface for my clients to use that interacts with > > these commands. The Pexpect[1] module is pretty much aimed at doing exactly this. 1: http://www.noah.org/wiki/Pexpect

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(a==b) ? 'Yes' : 'No'
by gentlestone April 19, 2010

April 19, 2010

Hi, how can I write the popular C/JAVA syntax in Python? Java example: return (a==b) ? 'Yes' : 'No' My first idea is: return ('No','Yes')[bool(a==b)] Is there a more elegant/common python expression for this?

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Classes as namespaces?
by kj April 12, 2010

April 12, 2010

What's the word on using "classes as namespaces"? E.g. class _cfg(object): spam = 1 jambon = 3 huevos = 2 breakfast = (_cfg.spam, _cfg.jambon, _cfg.huevos) Granted, this is not the "intended use" for classes, and therefore could be viewed as a misuse ("that's what dictionaries are for", etc.). But other than this somewhat academic objection[*], I really can see no problem with using classes in this way. And yet, I've come across online murky warnings against using classes as "pseudo-namespaces". Is there some problem that I'm not seeing with this technique? ~K [*] My own subjective dislike for the widespread practice of using triple quotes to comment out code is formally similar to this one ("the 'intended use' for triple-quoting is not to comment out code", etc.). Here I find myself on the opposite side of the purist/pragmatic divide. Hmmm.

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Automatic import ?
by C. B. April 10, 2010

April 10, 2010

Hi everyone, I'm currently coding a C library which provides several modules and objects. Let's say that some of these objects are classes called AAA and BBB. The constructor of AAA needs to get BBB as argument. So I can run the following code : from mymodule import AAA from mymodule import BBB a = AAA(BBB())) But, as there is no case where AAA can be used without BBB, I would like to avoid importing BBB in my Python scripts when I already import AAA. For now, I think that reproducing the behavior of the __init__.py file could be a good way to do this, but how can I code that using only the C API ? Are there any other solutions ? Is this kind of importation a good idea ? Greetings, Cyrille Bagard

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Clearing memory (namespace) before running code
by vsoler April 10, 2010

April 10, 2010

Hi, Is there a way to erase/delete/clear memory before a piece of code is run? Otherwise, the objects of the previous run are re-usable, and may bring confusion to the tester. Thank you

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