[Tutor] Running two applications at once
hi, I'm new to python, and I'm starting with Python 3.1 directly. I have been learning python for about 2 weeks now. And I have few questions. Is it possible if I run two applications at once? For example, if I make a clock/timer application with alarm etc, then I want exercise with my python, creating other codes, and running it. Is it possible? If I can make the application as stand-alone application (executeable EXE file - I'm using Windows XP), then there should be no problem. But as far that I know, py2exe doesnt support python version 3 yet. Does anyone know anyway to convert python to exe for python 3.1? Thank you. Dirk ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Running two applications at once
hi, I'm new to python, and I'm starting with Python 3.1 directly. I have been learning python for about 2 weeks now. And I have few questions. Is it possible if I run two applications at once? For example, if I make a clock/timer application with alarm etc, then I want exercise with my python, creating other codes, and running it. Is it possible? If I can make the application as stand-alone application (executeable EXE file - I'm using Windows XP), then there should be no problem. But as far that I know, py2exe doesnt support python version 3 yet. Does anyone know anyway to convert python to exe for python 3.1? Thank you. Dirk ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Displaying .jpg in Tkinter (Python 3.1)
hi, is there anyway to display a .jpg (or other type) images in Tkinter with Python 3.1? From what I read here in the forum, for Python 2.6 I could use the PIL package. But the PIL packages doesnt support Pyton 3.1 yet (from what I read on the PIL website). Are there perhaps other packages or other way to do it without using PIL? Thanks. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Displaying .jpg in Tkinter (Python 3.1)
Hi, with Tkinter, you can only display GIF and PGM/PPM images. when you try to create an PhotoImage object from another file format (JPG for example), it will give you an error. Alan Gauld wrote: "Dirk Wangsadirdja" wrote is there anyway to display a .jpg (or other type) images in Tkinter with Python 3.1? You can display a limited set of image types, including GIF and JPG in Tkinter without PIL. Several Widgets take an image including the Canvas and Text widgets. I think a label can be an image too, but am not certain. The trick is to crate an PhotoImage object from your file and insert that into the widget. To change the widget you modify the image object not the widget. See here for more info: http://effbot.org/tkinterbook/photoimage.htm HTH, ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How to iterate through unicode string.
Hi allen (and perhaps this goes also for others), just a suggestion, maybe when we post a problem, we should also mention the python version that we use. Sometimes, different version of python would give different results. I tried it with Python 3.1 (python 3.x uses unicode for string) and Python 2.6.2 (applying the s = u'Büro') and both give me 4 characters. Sorry, I only have those 2 version installed. Regards, Dirk zhang allen wrote: Hi Christian, Thanks for your tip. But it seems to me still not working again. i wirte this python code k = [] s = u'Büro' for c in s: k.append(c) print k k=[u'B', u'\xa8', u'\xb9', u'r', u'o'] i still have 5 different chars. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Help deciding between python and ruby
Hi, I've never learned ruby, but from what I read, ruby is a pure OOP language, and if you are going to do a lot of web creation, then ruby on rails is a good one. What I can advice is, if you choose to stick with python, perhaps you shouldn't use python 3.x, but use python 2.5 (from what I heard, its supposed to be the best version?). Why? many python packages that later on I'm sure you would like to use are still based on python 2.x. I didnt know it before, and I start by learning python 3.1. Since I start with that (and because I'm too stubborn), I don't want to start learning python 2.x. But thats my choice, and if there are packages that I cant use yet, I just have to live with that. Besides that, I think that most of the python tutorials are still based on python 2.x. In case you're not aware of it, python 3.x is not backward compatible. And since there are several changes in python 3.x, it wouldnt be able to run python 2.x script. And if you're planning to make executeable files from your script, as far that I know, until now there are no tools to convert python 3.x script to executeable yet. On Fri, 2009-09-04 at 06:18 -0700, dan06 wrote: I'd like to learn a programming language - and I need help deciding between python and ruby. I'm interesting in learning what are the difference, both objective and subjective, between the two languages. I know this is a python mailing list, so knowledge/experience with ruby may be limited - in which case I'd still be interested in learning why members of this mailing list chose python over (or in addition to) any other programming language. I look forward to the feedback/insight. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] (no subject)
I tested it and it works. But I dont understand why it works. Can someone please explain it further? Thanks. Alan Gauld wrote: "C or L Smith" wrote Or (and I'll duck after I pass on what I just happened across today on the web): ### for i in range(len(word)): print word[~i] ### Neat trick! Now what does ~ do?... the bitwise inverse. So it relies on the rules of complementing the binary value to effectively add one and negate. Sneaky, and a new one on me! Alan G. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Sorting 2-d data
Lie Ryan wrote: if you have data like this: mylist = [ [3, 4, 3, 2, 1], [2, 1, 1, 1, 1], [4, 2, 2, 1, 2], [1, 3, 1, 1, 1], ] you can use mylist.sort(key=lambda x: x[0]) sorted(mylist, key=lambda x: x[0]) works as well if you need a new list I have a further question. If I want to sort the list not based on first element, but the second, third and so on, then using the lambda works nicely. But for sorting the list with the first element as key, I tried it using just mylist.sort() without the lambda, and its working also. Then why use the lambda? Sorry, I'm using python3. so maybe it won't work on python2 with just mylist.sort()? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
