Re: [Tutor] How to handle try and except in this case

On 2011-11-27 17:58, Mic wrote: Say that I want to try and open 10 files. If none of these exists, I want an error message to appear. But only if NONE of these files exists. I know how to handle this with one file. But I don't know how to do that with more than one. So the program should try

Re: [Tutor] useful function or reinventing the wheel??

> > > You're welcome. I'd look forward to seeing your rewrite, and whether it's > really shorter and more straightforward. > > Another advantage is doing less disk I/O if you start by trying the > requested directory directly, and only recursing to parents if you can't > make the requested directo

[Tutor] Programming Collective Intelligence Study Group

Over on the Machine Learning Class, I mentioned the idea of setting up some online resources to go through the Programming Collective Intelligence book as a group. This would include a group or discussion board of some type, maybe a Google+ or Facebook page, and a wiki. Then we would set a pace an

Re: [Tutor] Do loop in Python

Thank you so much. This script and all information was totally helpful and actually helped me for the next step of my work as well. Have a great time. Sue On Fri, Nov 25, 2011 at 10:44 PM, Andreas Perstinger wrote: > On 2011-11-25 14:46, stm atoc wrote: >> >> Here is the new version of the p

Re: [Tutor] How to handle try and except in this case

On 11/29/2011 03:37 AM, Mic wrote: On 2011-11-27 17:58, Mic wrote: Say that I want to try and open 10 files. If none of these exists, I want an error message to appear. But only if NONE of these files exists. I know how to handle this with one file. But I don't know how to do that with mor

Re: [Tutor] How to handle try and except in this case

Mic wrote: > > On 2011-11-27 17:58, Mic wrote: >>> Say that I want to try and open 10 files. If none of these exists, I >>> want an >>> error >>> message to appear. But only if NONE of these files exists. > >>> I know how to handle this with one file. But I don't know how to do that >>> with mor

Re: [Tutor] Programming Collective Intelligence Study Group (Mark Lybrand)

the user might not have read permissions either. >> >> > I am actually passing in the path already os.path.abspath-ed. So, I should > probably move that into the function for better encapsulation. I am on > Windows, so ismount is behaving correctly (I tested it in Idle before goin

Re: [Tutor] Programming Collective Intelligence Study Group

Mark Lybrand wrote: Over on the Machine Learning Class, I mentioned the idea of setting up some online resources to go through the Programming Collective Intelligence book What are the Machine Learning Class and the Programming Collective Intelligence book? Should I have heard of them before?

Re: [Tutor] Programming Collective Intelligence Study Group (Mark Lybrand)

bspath is in order. I also think that ismount() might not be > >> legal on Windows, if you care about that. > >> > >> Also, we have to worry about what happens when one of the directories > >> cannot be made for reasons unrelated to the

Re: [Tutor] Programming Collective Intelligence Study Group

> > What are the Machine Learning Class and the Programming Collective > Intelligence book? Should I have heard of them before? > > Sorry for being unclear. Machine Learning Class is one of the free classes offered online by Stanford. http://www.ml-class.org This one started in October. Another

Re: [Tutor] Programming Collective Intelligence Study Group (Mark Lybrand)

case. I think you might have the same problem also. >> You >> >> assume that you can safely go back to the mount point. But if the >> >> path >> >> given is relative, you have to allow for that as well. Perhaps a call >> to >> >>

Re: [Tutor] pass tuples to user defined function(beginner)

bob gailer wrote: On 11/28/2011 12:47 PM, James Reynolds wrote: On Mon, Nov 28, 2011 at 12:32 PM, Mayo Adams > wrote: I am trying to pass a set of tuple strings from a file to a function I have defined. Each tuple is on a separate line, and looks someth

Re: [Tutor] How to use try and except in this case?

Mic wrote: Say that I want to try and open 10 files. If none of these exists, I want an error message to appear. But only if NONE of these files exists. I know how to handle this with one file. But I don't know how to do that with more than one. So the program should try and open all 10 files

Re: [Tutor] How to raise error without the stack trace

Karim wrote: I did not explain myself clearly. I Kow when I fired it because it is in code like: If not value: raise MyError('You did wrong here!') And in that case I did not want the stack trace because I know perfectly where the message is triggered. Really? You must have amazingly

Re: [Tutor] pass tuples to user defined function(beginner)

Steven D'Aprano wrote: > bob gailer wrote: >> On 11/28/2011 12:47 PM, James Reynolds wrote: >>> >>> >>> On Mon, Nov 28, 2011 at 12:32 PM, Mayo Adams >> > wrote: >>> >>> I am trying to pass a set of tuple strings from a file to a >>> function I >>> have defined.

Re: [Tutor] Do loop in Python

stm atoc wrote: Thank you so much for your reply. It was very helpful information and I used it in order to improve the program Here is the new version of the program: zvalues = [-200] # starting value hvalues = [10] # starting value increments = [1, 1, 1, 1, 1, 1, 1, 1] for N in incremen

Re: [Tutor] pass tuples to user defined function(beginner)

Peter Otten wrote: And here's the lazy-bastard version: [...] ... print ast.literal_eval(line.strip()) Nice! -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/l

[Tutor] problem with msg widget & button

OK, I've stripped out all the comments and put it here: http://www.pastie.org/2938751 This works but the button doesn't put the next comment in the window. The only way I could figure to get the next comment in the window is to add the msg_widget line to the disp_quote function, but when I do th

[Tutor] python webservice suds

hi, all: is someone familiar to suds. I'm making a webservice client, and meet some problems. I try to ask helps from s...@python.org, li...@libertylost.org, python-torn...@googlegroups.com, while, the problem still exist. part 1: how do you think the xml in the url: "http://211.137.45.104:900

[Tutor] Making a function run every second.

Hi I want a function to run every second , how do I do that? Say that the function look like this: def hi(): print("hi") Thanks! Mic ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org

[Tutor] Creating a line in a text file every time a button is pressed.

Hey again. I figured I would first post this piece of code and then ask my questions. FREE = "green" OCCUPIED = "red" class Mainwindow(Frame): def __init__(self,master): super(Mainwindow,self).__init__(master) self.grid() self.create_mainwidgets() def create_mai

Re: [Tutor] How to handle try and except in this case

Could you explain what's unclear about it? Andreas couldn't get more specific, since you didn't say how these 10 names are provided. Yes, it was probably my fault. Sorry about that. I have come up with a new way of working around a problem in my main program so I only need two files to be tes

Re: [Tutor] Making a function run every second.

In my opinion, you probably have to think of how many times it has to run. If you want to run forever, you can just make an infinite loop. Here's my try. import time def myloop(): while True: print 'Hi' time.sleep(1) This would run forever and print H

Re: [Tutor] Making a function run every second.

You won't get it exactly on because the time it takes to call the function will affect your trigger time. I would use something like an infinite loop with a 1 second sleep after the function call Bodsda Sent from my BlackBerry® wireless device -Original Message- From: "Mic" Sender: t

Re: [Tutor] How to handle try and except in this case

(You top-posted again. Try to put your remarks AFTER the part you're quoting, so that the message is self-descriptive) On 11/29/2011 10:16 AM, Mic wrote: Could you explain what's unclear about it? Andreas couldn't get more specific, since you didn't say how these 10 names are provided. Yes,

Re: [Tutor] problem with msg widget & button

Cranky Frankie wrote: > OK, I've stripped out all the comments and put it here: > > http://www.pastie.org/2938751 > > > This works but the button doesn't put the next comment in the window. > The only way I could figure to get the next comment in the window is > to add the msg_widget line to th

Re: [Tutor] Making a function run every second.

Mic wrote: > I want a function to run every second , how do I do that? > > Say that the function look like this: > > def hi(): > print("hi") For a console app you could use a for-loop with time.sleep() or http://docs.python.org/dev/py3k/library/sched.html For a script that uses tkinter the

Re: [Tutor] Making a function run every second.

(You put your response in the wrong place; it belongs after the part you're quoting.) he On 11/29/2011 10:19 AM, bod...@googlemail.com wrote: You won't get it exactly on because the time it takes to call the function will affect your trigger time. I would use something like an infinite loop w

Re: [Tutor] Making a function run every second.

-Ursprungligt meddelande- From: bod...@googlemail.com Sent: Tuesday, November 29, 2011 4:19 PM To: Mic ; tutor-bounces+bodsda=googlemail@python.org ; Tutor - python List Subject: Re: [Tutor] Making a function run every second. You won't get it exactly on because the time it take

Re: [Tutor] How to handle try and except in this case

-Ursprungligt meddelande- From: Dave Angel Sent: Tuesday, November 29, 2011 4:25 PM To: Mic Cc: tutor@python.org Subject: Re: [Tutor] How to handle try and except in this case (You top-posted again. Try to put your remarks AFTER the part you're quoting, so that the message is se

Re: [Tutor] why doesn't python show error

In some cases, it is a useful fact that Python only shows error messages when they are encountered. For example, I can test a program while keeping away from an area that still doesn't work, rather than having to make it work flawlessly before my first test. Python *can* generate executables w

Re: [Tutor] How to handle try and except in this case

On 11/29/2011 10:35 AM, Mic wrote: -Ursprungligt meddelande- From: Dave Angel Sent: Tuesday, November 29, 2011 4:25 PM To: Mic Cc: tutor@python.org Subject: Re: [Tutor] How to handle try and except in this case (You top-posted again. Try to put your remarks AFTER the part you're quotin

Re: [Tutor] Making a function run every second.

-Ursprungligt meddelande- From: Dave Angel Sent: Tuesday, November 29, 2011 4:33 PM To: bod...@googlemail.com Cc: Mic ; Tutor - python List Subject: Re: [Tutor] Making a function run every second. (You put your response in the wrong place; it belongs after the part you're quoting.)

[Tutor] problem with msg widget & button

Peter Otten <__pete...@web.de> wrote: snip <> What I meant to say was, yes, I only want one message object, but I want that same object to be updated each time the next quote button is pressed. <> snip again OK, I think I tried it several ways and couldn't get any of them to work, but I tried

Re: [Tutor] Making a function run every second.

Mic wrote: I want a function to run every second , how do I do that? Say that the function look like this: def hi(): print("hi") For a script that uses tkinter there's the after() method. Example: root = Tk() def hi(): >print("ho") def hi_reschedule(): > hi() ># make

Re: [Tutor] problem with msg widget & button

On Tue, Nov 29, 2011 at 9:54 AM, Cranky Frankie wrote: > Peter Otten <__pete...@web.de> wrote: > > Isn't msg_widget an object, like everything else in Python. If so, why is > it not > > def display_quote(): > msg_widget.text = choose_quote() > > That is one of the things I tried. I don't under

Re: [Tutor] Making a function run every second.

On 11/29/2011 10:52 AM, Mic wrote: -Ursprungligt meddelande- From: Dave Angel Sent: Tuesday, November 29, 2011 4:33 PM -Original Message- From: "Mic" Sender: tutor-bounces+bodsda=googlemail@python.org Date: Tue, 29 Nov 2011 15:54:59 To: Subject: [Tutor] Making a function

Re: [Tutor] Making a function run every second.

On Tue, Nov 29, 2011 at 10:09 AM, Dave Angel wrote: > tkinter provides a couple of specific timer events, and I now see > your reply to a message that said to use the after() method, which is a > one-shot. I believe there's another one that sets a periodic timer so you > don't have to do an afte

Re: [Tutor] useful function or reinventing the wheel??

On 11/28/2011 8:30 PM Mark Lybrand said... I am a habitual wheel re-inventor, For anyone who hasn't yet discovered effbot's guide to the python library, it's a good place to start as you expand your python skills. see http://effbot.org/librarybook and in particular for your current questio

Re: [Tutor] Making a function run every second.

On 11/29/2011 11:09 AM, Dave Angel wrote: On 11/29/2011 10:52 AM, Mic wrote: Okay, I undestand. Hmm, what is a drift? I just noticed I hadn't answered that one. It doesn't matter any more since you're running tkinter. But for completeness: If you had a non-event driven program (eg. a con

[Tutor] tkinter message & button questions

I changed the quote program to use the grid manager: http://www.pastie.org/2939778 Still, the message widget box keeps resizing based on the length of the quote. I'm thinking it has to be something to do with the message widget itself, not the pack vs. grid manager. When I research this I find t

[Tutor] How to write lines in a text file (GUI)

Hey again. I figured I would first post this piece of code and then ask my questions. FREE = "green" OCCUPIED = "red" class Mainwindow(Frame): def __init__(self,master): super(Mainwindow,self).__init__(master) self.grid() self.create_mainwidgets() def create_mai

Re: [Tutor] How to write lines in a text file (GUI)

On 11/29/2011 01:02 PM, Mic wrote: Hey again. I figured I would first post this piece of code and then ask my questions. How is this different from the question you posted 3 hours ago, with subject: "[Tutor] Creating a line in a text file every time a button ispressed." I'm working

Re: [Tutor] Creating a line in a text file every time a button is pressed.

On 11/29/2011 10:09 AM, Mic wrote: Hey again. root=Tk() root.title("testV2") app=Mainwindow(root) root.mainloop() What's that code got to do with the question below? I am now writing another program. It turned out just fine, but I have one question. If button one is pressed I want t

Re: [Tutor] How to write lines in a text file (GUI)

Hi, This is a very simple objective to achieve, so instead of giving you a straight up solution, I will just nudge your train of thought in the right direction. Note: I'm struggling to follow your code whilst reading on my phone so the following suggestions make no reference to your particular

Re: [Tutor] How to write lines in a text file (GUI)

How is this different from the question you posted 3 hours ago, with subject: "[Tutor] Creating a line in a text file every time a button is pressed." Sorry about the repost. My Email-client is set to resend the mail if it is marked as spam by the reciever. So, it wasn't the case, you d

Re: [Tutor] tkinter message & button questions

Cranky Frankie wrote: > I changed the quote program to use the grid manager: > > http://www.pastie.org/2939778 > > Still, the message widget box keeps resizing based on the length of > the quote. I'm thinking it has to be something to do with the message > widget itself, not the pack vs. grid ma

Re: [Tutor] How to write lines in a text file (GUI)

Note: I'm struggling to follow your code whilst reading on my phone so the following suggestions make no reference to your particular codebase Okay I understand. Perhaps it doesn't matter. Let's first assume that all buttons could be pressed in any order, therefore given the following press

[Tutor] list, tuple or dictionary

i am trying to create a program that will allow users to enter items and their prices; should i be looking at a list, tuple or what? many thanksadrian ___ Tutor maillist - Tutor@python.org To unsubscribe

Re: [Tutor] How to write lines in a text file (GUI)

I'm not sure, I also don't have access to the python docs atm, but the simplest method would be to read the whole file into a list, edit the correct item (remembering to count from 0 not 1) and then writing the whole list back to the file. Bodsda --Original Message-- From: Mic To: bod.

Re: [Tutor] list, tuple or dictionary

You could use any of them, but a dict would be the most logical assuming no duplicate items Bodsda Sent from my BlackBerry® wireless device -Original Message- From: ADRIAN KELLY Sender: tutor-bounces+bodsda=googlemail@python.org Date: Tue, 29 Nov 2011 20:31:56 To: Subject: [Tutor

Re: [Tutor] list, tuple or dictionary

On Tue, Nov 29, 2011 at 2:31 PM, ADRIAN KELLY wrote: > i am trying to create a program that will allow users to enter items and > their prices; should i be looking at a list, tuple or what? > The entering part isn't as important as how you want to display the data. For instance, here's a program

Re: [Tutor] list, tuple or dictionary

thanks guy, i was thinking of using a dictionary:- Stock_list = {"White Bread": 1.24,"Biscuits": 1.77,"Banana" : 0.23,"Tea Bags" : 2.37,"Eggs" : 1.23,"Beans" : 0.57} how would i go about adding, for example tea and eggs to get a subtota

Re: [Tutor] list, tuple or dictionary

On Tue, Nov 29, 2011 at 3:04 PM, ADRIAN KELLY wrote: > thanks guy, i was thinking of using a dictionary:- > Stock_list = {"White Bread": 1.24, > "Biscuits": 1.77, > "Banana" : 0.23, > "Tea Bags" : 2.37, > "Eggs" : 1.23, > "Beans" : 0.57

Re: [Tutor] list, tuple or dictionary

Sound Wayne, thank you From: waynejwer...@gmail.com Date: Tue, 29 Nov 2011 15:11:46 -0600 Subject: Re: [Tutor] list, tuple or dictionary To: kellyadr...@hotmail.com CC: tutor@python.org On Tue, Nov 29, 2011 at 3:04 PM, ADRIAN KELLY wrote: thanks guy, i was thinking of using a dicti

Re: [Tutor] pass tuples to user defined function(beginner)

Apologies for my numerous offenses to protocol, and gratitude for the suggestions all around.And yet... as to the notion of a tuple existing in some non-Platonic sense, I suspect I will have carry my confusion away in order to dispel it by further reading. "Wrong on both counts?" Hey, you win! I

Re: [Tutor] pass tuples to user defined function(beginner)

On Tue, Nov 29, 2011 at 3:40 PM, Mayo Adams wrote: > I cant immediately see how anything in a script is > anything other than a representation of some kind, hence the > distinction between representamen and object does no work for me. > That's exactly it - when you have something like this in a

Re: [Tutor] How to write lines in a text file (GUI)

On 11/29/2011 02:24 PM, Mic wrote: Actually, I nearly know how do to solve this problem. I just have one problem. Can I use writeline() to write text into line 3 or line 5 for example? Say that I want to write the text "hi" into line five of a text file, can I do this using writeline(), i

Re: [Tutor] pass tuples to user defined function(beginner)

On 11/29/2011 04:40 PM, Mayo Adams wrote: Apologies for my numerous offenses to protocol, and gratitude for the suggestions all around.And yet... as to the notion of a tuple existing in some non-Platonic sense, I suspect I will have carry my confusion away in order to dispel it by further readi

Re: [Tutor] list, tuple or dictionary

ADRIAN KELLY wrote: i am trying to create a program that will allow users to enter items and their prices; should i be looking at a list, tuple or what? many thanksadrian Translated to a version more familiar in the "real world": "I'm looking to build a wooden wardrobe that will allow

Re: [Tutor] pass tuples to user defined function(beginner)

Dave Angel wrote: > The whole Y2K problem was caused because too many programmers made unwarranted assumptions about their data (in that case about the range of valid dates). Well, yes. But we knew then that the stuff we were writing wouldn't still be in play 25 years out. :) And they

Re: [Tutor] pass tuples to user defined function(beginner)

On 11/29/2011 06:40 PM, emile wrote: Dave Angel wrote: > The whole Y2K problem was caused because too many programmers made unwarranted assumptions about their data (in that case about the range of valid dates). Well, yes. But we knew then that the stuff we were writing wouldn't still be i

Re: [Tutor] why doesn't python show error

On 28/11/11 10:31, surya k wrote: Thanks for that information. I understood what you are saying but in general when python doesn't give us executable files (whether its in Mac/ Linux/ Windows).. how could people develop programs ?. At some point of time people need to provide a file that runs wit

[Tutor] Treating lists as lists

I am pretty sure I saw this somewhere but now I can't. Here's the problem: list = ['hello', 'world'] template = '%s %s' print template % list But it appears that list is just one (list) when I want to treat it as two (items). I can do that right? How, pretty please? Mark __

Re: [Tutor] Treating lists as lists

On Wed, Nov 30, 2011 at 2:09 AM, Mark Lybrand wrote: > I am pretty sure I saw this somewhere but now I can't.  Here's the problem: > list = ['hello', 'world'] > template = '%s %s' > print template % list > > But it appears that list is just one (list) when I want to treat it as two > (items).  I c

Re: [Tutor] pass tuples to user defined function(beginner)

On 29/11/11 21:40, Mayo Adams wrote: tuple that is in the file, it would be helpful to know what it is. Presumably, a string representing a tuple. Exactly so, everything in the file is a string. If it's a binary file it is a string of bytes, if it is a text file a string of characters. The i

Re: [Tutor] Treating lists as lists

On 11/29/2011 08:09 PM, Mark Lybrand wrote: I am pretty sure I saw this somewhere but now I can't. Here's the problem: list = ['hello', 'world'] template = '%s %s' print template % list But it appears that list is just one (list) when I want to treat it as two (items). I can do that right? Ho

Re: [Tutor] Making a function run every second.

On 29/11/11 14:54, Mic wrote: I want a function to run every second , how do I do that? Say that the function look like this: def hi(): print("hi") The answer depends on whether you want to do it in a GUI or in a command line program. Since your other posts have included GUI code I'd sugg

Re: [Tutor] How to write lines in a text file (GUI)

On 29/11/11 18:29, Mic wrote: Oh, where are you living if you are waiting for lunch? It's past dinner here, so that's why I got mails in the middle of the night! I thought most people were from UK! You are on the internet, its global! :-) Most tutor subscribers are actually US based I suspect,

Re: [Tutor] pass tuples to user defined function(beginner)

On 11/29/2011 6:40 PM, emile wrote: Dave Angel wrote: ... single use punch cards... You didn't have an IBM 719 CARD punch? (ChAd Restoration Device). Made reuse of punch cards very easy. -- Bob Gailer 919-636-4239 Chapel Hill NC ___ Tutor maillis

Re: [Tutor] Treating lists as lists

Thanks everyone. Right before quitting time my brain froze up :) ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] Programming Collective Intelligence Study Group

Sounds like an awesome idea to me. I'm on board. Keep the list informed about that please. And thanks for the links to the machine learning and nlp resources! http://www.squidoo.com/introductiontopython On Tue, Nov 29, 2011 at 12:42 AM, Mark Lybrand wrote: > Over on the Machine Learning Class

Re: [Tutor] Programming Collective Intelligence Study Group

On 11/29/2011 3:42 AM, Mark Lybrand wrote: Over on the Machine Learning Class, I mentioned the idea of setting up some online resources to go through the Programming Collective Intelligence book as a group. This would include a group or discussion board of some type, maybe a Google+ or Facebook

Re: [Tutor] Programming Collective Intelligence Study Group

Before I launch in on my master scheme. I have come across another couple of interesting Machine Learning/Python books: Mining the Social Web by Matthew Russell. O'Reilly ISBN-13: 978-1449388348 Machine Learning: An Algorithmic Perspective by Stephen Marsland. ISBN-13: 978-1420067187 Okay, thi