Re: [Tutor] Do not understand why I am getting "EOFError: EOF when reading a line".

2016-10-08 Thread Walter Prins
Hi On 8 October 2016 at 05:51, boB Stepp wrote: > I think I now understand why I am getting this EOF exception. > > On Fri, Oct 7, 2016 at 10:16 PM, boB Stepp wrote: >> My current get_input() function: >> >>

Re: [Tutor] Questions as to how to run the same unit test multiple times on varying input data.

2016-09-24 Thread Walter Prins
Hi, On 24 September 2016 at 06:55, boB Stepp wrote: > > def test_returned_len_is_70(self): > '''Check that the string returned by "right_justify(a_string)" is the > length of the entire line, i.e., 70 columns.''' > > for test_string in

Re: [Tutor] Unable to download , using Beautifulsoup

2016-07-29 Thread Walter Prins
Hi On 29 July 2016 at 08:28, Crusier wrote: > I am using Python 3 on Windows 7. > > When I use Google Chrome and use 'View Page Source', the data does not > show up at all. However, when I use 'Inspect', I can able to read the > data. > > Please kindly explain to me if the

Re: [Tutor] Hi

2016-06-24 Thread Walter Prins
Hi, On 23 June 2016 at 19:00, Bharath Swaminathan wrote: > Can I run my python code in multiple processors? I have a dual core... Like an idiot I forgot a link for the "pp" module, my apologies. Here it is: http://www.parallelpython.com/ If you have/use pip, you can

Re: [Tutor] Hi

2016-06-24 Thread Walter Prins
Hi Bharath, On 23 June 2016 at 19:00, Bharath Swaminathan wrote: > > Can I run my python code in multiple processors? I have a dual core... Notwithstanding Alan's answer, I'm going to directly answer your question: Yes, it can. However The degree and level of

Re: [Tutor] Web Page Scraping

2016-05-24 Thread Walter Prins
On 24 May 2016 at 15:37, Walter Prins <wpr...@gmail.com> wrote: > print(name1.encode(sys.stdout.encoding, "backslashreplace")) # I forgot to mention, you might want to read the following documentation page: https://docs.python.org/3/howto/unicode.html

Re: [Tutor] Web Page Scraping

2016-05-24 Thread Walter Prins
Hi, On 24 May 2016 at 04:17, Crusier wrote: > > Dear All, > > I am trying to scrape a web site using Beautiful Soup. However, BS > doesn't show any of the data. I am just wondering if it is Javascript > or some other feature which hides all the data. > > I have the following

Re: [Tutor] Read from large text file, find string save 1st string of each line where it appeared.

2015-12-28 Thread Walter Prins
Hi Sutanu, On 28 December 2015 at 11:20, sutanu bhattacharya < totaibhattacha...@gmail.com> wrote: > {'115160371': [45349980, 22477811, 40566595, 26947037, 16178191, 12984002, > 20087719, 19771564, 61746245, 17467721, 32233776, 31052980, 70768904, > 16113331, 12414642]} > >

Re: [Tutor] trouble with beautiful soup

2015-12-25 Thread Walter Prins
Hi, On 25 December 2015 at 20:28, Walter Prins <wpr...@gmail.com> wrote: > As mentioned previously, for BeautifulSoup 4, the package name is "bt4", > so you would do > > import bt4 > > to test it. > Of course, that should have

Re: [Tutor] trouble with beautiful soup

2015-12-25 Thread Walter Prins
Hi On 25 December 2015 at 12:32, marcus lütolf wrote: > dear pythonistas, dear contributors Danny and Walter, > > I tried all instructions given to my without any success: > If I type the install commands in the command line - even after having > installed pip - I

Re: [Tutor] trouble with beautiful soup

2015-12-24 Thread Walter Prins
Hi, On 24 December 2015 at 17:21, marcus lütolf wrote: > I am getting the following trace back without beeing prompted for an input: > > Traceback (most recent call last): > File "C:/Python27/Beautiful Soup_ex1.py", line 2, in > from beautifulspoup import * >

Re: [Tutor] yes, I am being lazy...

2014-11-23 Thread Walter Prins
Hi, On 23 November 2014 at 20:50, Clayton Kirkwood c...@godblessthe.us wrote: From: Tutor [mailto:tutor-bounces+crk=godblessthe...@python.org] On Behalf Of Steven D'Aprano That's because it's not right. You're supposed to run setup.py. From the Windows command line, you run something like:

Re: [Tutor] Preparing virtualenvwrapper for Django 1.6 development

2014-08-26 Thread Walter Prins
Hi, To add: On 23 August 2014 08:54, Chris “Kwpolska” Warrick kwpol...@gmail.com wrote: On Fri, Aug 22, 2014 at 11:23 PM, Sithembewena Lloyd Dube zebr...@gmail.com wrote: I am developing on a Windows 8.1 machine and wold like to setup virtualenvironment via virtualenvwrapper so as to have

Re: [Tutor] How to Create Webpage with Python

2014-07-10 Thread Walter Prins
Hi, On 10 July 2014 02:30, John Cast jdc...@stanford.edu wrote: Web - Currently it looks like maybe static HTML page(s) generated every time my script is run is the right way to go? It would be one way to proceed, yes, perhaps the most appropriate way for you for now. It sounds

Re: [Tutor] How can I open and use gnome-terminal from a Python script?

2014-07-09 Thread Walter Prins
Hi Jim, On 8 July 2014 21:45, Jim Byrnes jf_byr...@comcast.net wrote: I would like to automate running virtualenv with a python script by: opening gnome-terminal cd to proper directory run source /bin/activate I found some examples of using os.system() to get gnome-terminal to open but I

Re: [Tutor] How can I open and use gnome-terminal from a Python script?

2014-07-09 Thread Walter Prins
Hi Jim, On 9 July 2014 14:43, Jim Byrnes jf_byr...@comcast.net wrote: On 07/09/2014 04:27 AM, Walter Prins wrote: I forgot to mention I am using Linux (Ubuntu 12.04). I am working my way through a book about breezypythongui which uses Python 3, hence virtualenv. I found that each time I

Re: [Tutor] How to Create Webpage with Python

2014-07-09 Thread Walter Prins
Hi John, Welcome you to the Python tutor mailing list. On 9 July 2014 19:26, John Cast jdc...@stanford.edu wrote: First, please forgive any ignorance in my post here as I am not good with HTML and new to python. Not a problem. Although the list if formally about learning the basics of

Re: [Tutor] Better way to check *nix remote file age?

2014-06-27 Thread Walter Prins
Hi, On 26 June 2014 19:40, Albert-Jan Roskam fo...@yahoo.com wrote: snip I'd probably rather try Paramiko's SFTPClient and retrieve the file modified date directly: http://paramiko-docs.readthedocs.org/en/latest/api/sftp.html#paramiko.sftp_client.SFTPClient (see the SFTPFile.stat() method

Re: [Tutor] Better way to check *nix remote file age?

2014-06-27 Thread Walter Prins
Hi, On 27 June 2014 12:57, leam hall leamh...@gmail.com wrote: On Fri, Jun 27, 2014 at 7:41 AM, Stefan Behnel stefan...@behnel.de wrote: Raúl Cumplido, 27.06.2014 12:10: I would recommend you to migrate your Python version for a newer one where you can use fabric, paramiko or other ssh

Re: [Tutor] Better way to check *nix remote file age?

2014-06-27 Thread Walter Prins
Hi, On 26 June 2014 18:01, leam hall leamh...@gmail.com wrote: On Thu, Jun 26, 2014 at 12:41 PM, Walter Prins wpr...@gmail.com wrote: On 26 June 2014 14:39, leam hall leamh...@gmail.com wrote: Python 2.4.3 Is there a better way to do this? I'd probably rather try Paramiko's SFTPClient

Re: [Tutor] Better way to check *nix remote file age?

2014-06-27 Thread Walter Prins
Hi again ^^ On 27 June 2014 23:20, Leam Hall leamh...@gmail.com wrote: On 06/27/14 17:40, Walter Prins wrote: On 26 June 2014 18:01, leam hall leamh...@gmail.com wrote: On Thu, Jun 26, 2014 at 12:41 PM, Walter Prins wpr...@gmail.com wrote: On 26 June 2014 14:39, leam hall leamh...@gmail.com

Re: [Tutor] Better way to check *nix remote file age?

2014-06-26 Thread Walter Prins
On 26 June 2014 14:39, leam hall leamh...@gmail.com wrote: Python 2.4.3 Writing a function that takes the string from ssh server ls -l /var/log/yum.log and tries to see if the file is more than a couple months old. The goal is to only run python on the local server and it will ssh into the

Re: [Tutor] write dictionary to file

2014-06-20 Thread Walter Prins
Hi, On 20 June 2014 09:38, Ian D dux...@hotmail.com wrote: #so far this should read a file #using dictreader and take a column and join some text onto it import csv csvfile= open('StudentListToSort.csv', newline='') spamreader = csv.DictReader(csvfile,delimiter=',',quotechar='|') #open a

Re: [Tutor] write dictionary to file

2014-06-20 Thread Walter Prins
Hi, Firstly an apology -- I only just noticed your original code was Python 3 -- my example was Python 2, so there would be some changes required to make the example work on Python 3... On 20 June 2014 11:19, Ian D dux...@hotmail.com wrote: Thanks for your help I am not much closer in

Re: [Tutor] write dictionary to file

2014-06-20 Thread Walter Prins
Hi, You've had a very good reply from Mark already however I want to add to it and further clarify what he pointed out (why exactly *are* you getting the tuple error after all?), also I've updated the prior example to help explain, see below: On 20 June 2014 15:11, Ian D dux...@hotmail.com

Re: [Tutor] AttributeError: 'module' object has no attribute 'start'

2014-06-12 Thread Walter Prins
Hi, On 12 June 2014 05:51, jason sam user0...@gmail.com wrote: Hi All, I am new to wxPython.I have made a simple GUI that contains a button and by pressing that button i am calling another .py file(top_block.py)...But i am getting error using the command: top_block.start() The error

Re: [Tutor] AttributeError: 'module' object has no attribute 'start'

2014-06-12 Thread Walter Prins
On 12 June 2014 13:11, Steven D'Aprano st...@pearwood.info wrote: On Thu, Jun 12, 2014 at 11:41:58AM +0100, Walter Prins wrote: (What made you think that modules have a magic method start() that causes them to run?) You should probably learn more about Python itself, name binding, module

Re: [Tutor] How to create web interface?

2014-05-20 Thread Walter Prins
Hi, On 20 May 2014 21:00, P McCombs mcco...@imperium.org wrote: On May 14, Danny Yoo wrote: Another option might be to turn your program into a web site, so that the interface is the web browser, which everyone is getting used to these days. But this, too, is also... involved. :P I

[Tutor] Useful blog post: How to debug small programs

2014-05-07 Thread Walter Prins
Hi all, I stumbled across this post today and thought it was worth sharing with the Python tutor list. It provides good advice to students about debugging your programs and how to ask for help on forums, in particular Stack overflow, but in that way equally applies to the Python tutor list.

Re: [Tutor] Stephen Mik-Novice Python Programmer(Version 3.4.0)Can't get help using Dictionaries, Lists to 'Hangman Game Problem

2014-05-05 Thread Walter Prins
Hi Stephen, Please see below: On 5 May 2014 00:17, Stephen Mik mik.step...@yahoo.com.dmarc.invalid wrote: Dear Python World: I am almost brand new to Python 3.4.0 and am taking a beginning Python Programming class at the nearby Community College. One major problem I have is time

Re: [Tutor] Stephen Mik-Novice Python Programmer(Version 3.4.0)Can't get help using Dictionaries, Lists to 'Hangman Game Problem

2014-05-05 Thread Walter Prins
Hi Stephen, Firstly 2 requests: 1) Please do not respond to me personally; instead when interacting with a mailing list please use reply-all, removing me (or other individuals) from the recipient list. You can also use reply-list if your mail program has that option. There are several reasons

Re: [Tutor] Beginning Python 3.4.0 Programmer:Stephen Mik: Cannot get input variable to make While Loop conditional to work

2014-04-21 Thread Walter Prins
Hi, On 21 April 2014 19:12, Stephen Mik mik.step...@yahoo.com.dmarc.invalid wrote: Dear Python Community: I am new to Python,with only about a month's experience. I am writing Python 3.4.0 code that apparently isn't doing what it should be doing. Specifically, I am inputting or trying to

Re: [Tutor] Fwd: Puzzle - Next Step to our interviewing process - Pramati Technologies!

2014-04-15 Thread Walter Prins
Hi, On 15 April 2014 15:49, Sunil Tech sunil.tech...@gmail.com wrote: Hi Danny, Thank you for replying.. I need the python program which takes the attached csv on running the program which will give me the results as snip That is still not a question. It's a requirements statement. I

Re: [Tutor] question about strip() and list comprehension

2014-04-08 Thread Walter Prins
Hi, On 8 April 2014 22:38, Jared Nielsen nielsen.ja...@gmail.com wrote: Hello, Could someone explain why and how this list comprehension with strip() works? f = open('file.txt') t = [t for t in f.readlines() if t.strip()] f.close() print .join(t) I had a very long file of strings filled

Re: [Tutor] System output into variable?

2014-04-03 Thread Walter Prins
Hi Leam, On 3 April 2014 15:24, leam hall leamh...@gmail.com wrote: I've been trying to so a simple run a command and put the output into a variable. Using Python 2.4 and 2.6 with no option to move. The go is to do something like this: my_var = ls -l my_file So far the best I've seen

Re: [Tutor] Help Noob Question

2014-03-28 Thread Walter Prins
Hi Leo, On 27 March 2014 08:43, Leo Nardo waterfallr...@gmail.com wrote: Im on windows 8 and i need to open a file called string1.py that is on my desktop, in both the interpreter and notepad++, so that i can work on it. I already have it open in notepad, but for the life of me cannot figure

Re: [Tutor] How to get file permissions (Python 2.4)?

2014-03-19 Thread Walter Prins
Hi On 19 March 2014 18:48, leam hall leamh...@gmail.com wrote: I can use os.chmod('/usr/local/somefile') to change permissions but I haven't been able to find a way to test for file modes. stat.S_IRWXU('/usr/bin/python') Traceback (most recent call last): File stdin, line 1, in ?

[Tutor] Lab Three query [was: Re: (no subject)]

2014-03-05 Thread Walter Prins
Hi, Please reply to the mailing list post and not to me directly so others can benefit/chime in. I'll send this response to the mailing list instead of directly to you, so you should receive it via that route. On 5 March 2014 13:20, nick coffer coffer.n...@hotmail.com wrote: Ok. I need help

Re: [Tutor] Responding Tweet: A Twitter Bot

2014-02-21 Thread Walter Prins
Hi, On 21 February 2014 03:52, Zaki Akhmad zakiakh...@gmail.com wrote: On Thu, Feb 20, 2014 at 7:39 PM, James Scholes ja...@jls-radio.com wrote: Most decent Python libraries for accessing Twitter support the streaming API. This lets you keep a connection to the Twitter API alive and process

Re: [Tutor] Regular expressions

2014-02-13 Thread Walter Prins
Hi, On 13 February 2014 06:44, Santosh Kumar rhce@gmail.com wrote: I am using ipython. 1 ) Defined a string. In [88]: print string foo foobar 2) compiled the string to grab the foo word. In [89]: reg = re.compile(foo,re.IGNORECASE) 3) Now i am trying to match . In [90]: match =

Re: [Tutor] Code runs in interpreter but won't output to stdout

2014-02-01 Thread Walter Prins
Hi Bob, On 31 January 2014 21:59, bob gailer bgai...@gmail.com wrote: On 1/29/2014 8:59 PM, scurvy scott wrote: I signed up at Dogehouse. What the heck is it? There is no explanation as to what it does or what I'd do with it! I don't know if you're familiar with BitCoin and the concept of the

Re: [Tutor] Euler Spoiler

2014-01-12 Thread Walter Prins
Hi Keith, On 12 January 2014 23:12, Keith Winston keithw...@gmail.com wrote: I'm working through some of the Project Euler problems, and the following might spoil one of the problems, so perhaps you don't want to read further... The problem relates to finding all possible combinations of

Re: [Tutor] need help

2014-01-11 Thread Walter Prins
Hi, On 11 January 2014 14:52, S Tareq stare...@yahoo.com wrote: how can i do this on python using py game: You need to tell us more about what you've tried and where you're stuck. Needless to say we're not a solution provision service, but we'd be happy to help you get unstuck if you've

Re: [Tutor] What's in a name?

2014-01-03 Thread Walter Prins
Hi Keith, On 3 January 2014 20:03, Keith Winston keithw...@gmail.com wrote: So the answer to your question is just to print the string. The real challenge, as we have discovered, is how to access the list that is named by the string. And the usual way to map strings to objects is via a

Re: [Tutor] What's in a name?

2014-01-03 Thread Walter Prins
Hi, The code in my last post got line wrapped which will break if directly tried out. To avoid possible confusion I paste a version below with shorter lines which should avoid the problem: import gc, itertools def names_of(obj): Try to find the names associated to a given object.

Re: [Tutor] how to edit program files in Python?

2013-12-19 Thread Walter Prins
Hi, On 19 December 2013 19:33, Laurie Stephan curriculumspecial...@yahoo.com wrote: My son and I just opened Python for Kids and we're working our way through the lessons. Sometimes he mistypes the lines and hits return and discovers after that that he made a mistake in the line. But, when

Re: [Tutor] Getting Started

2013-12-18 Thread Walter Prins
Hi, On 18 December 2013 21:25, Mark Lawrence breamore...@yahoo.co.uk wrote: Go to window-preferences-pydev-pylint. It works beautifully :) Type something like this as the first two lines in an editor window:- if a == 1: print('a == 1') and it gives you a red bar on the right and a

Re: [Tutor] Thanks a bunch (was Re: Tutor Digest, Vol 118, Issue 64)

2013-12-15 Thread Walter Prins
Hi, On 15 December 2013 05:38, eryksun eryk...@gmail.com wrote: On Sat, Dec 14, 2013 at 10:16 AM, Walter Prins wpr...@gmail.com wrote: Gmail matches the format of the sender. If I reply to a text format email, the reply is text format. If the original is HTML mail, it replies in HTML

Re: [Tutor] Thanks a bunch (was Re: Tutor Digest, Vol 118, Issue 64)

2013-12-14 Thread Walter Prins
Hi, On 14 December 2013 03:31, Steven D'Aprano st...@pearwood.info wrote: On Fri, Dec 13, 2013 at 02:24:15PM -0500, eryksun wrote: On Fri, Dec 13, 2013 at 12:47 PM, Mark Lawrence breamore...@yahoo.co.uk wrote: Did you really have to send an entire digest, without changing the title, just

Re: [Tutor] Assigning a variable to an FTP directory listing

2013-12-12 Thread Walter Prins
Hi, On 12 December 2013 01:03, Danny Yoo d...@hashcollision.org wrote: By the way, I would recommend not doing this with FTP. If I remember rightly, it passes passwords in plain text, which is not so good. Reference: http://en.wikipedia.org/wiki/File_Transfer_Protocol#Security. You might

Re: [Tutor] string codes

2013-11-27 Thread Walter Prins
Hi, On 27 November 2013 21:20, spir denis.s...@gmail.com wrote: All in all, startswith plus start-index only seems to work fine, I guess. What is wrong? string.find also works (someone suggested it on the python-ideas mailing list) but requires both start- and end- indexes. Also, startswith

Re: [Tutor] Output not legible when debugging with ipdb

2013-11-26 Thread Walter Prins
Hi, On 26 November 2013 14:22, Peter Zorn m...@peterzorn.de wrote: Hi everyone - I'm fairly new to Python and I'm working through this ( http://quant-econ.net/) tutorial to learn the language. I've encountered a problem with the ipdb debugger and I wonder if anyone can help. When I

Re: [Tutor] Output not legible when debugging with ipdb

2013-11-26 Thread Walter Prins
Hi, On 26 November 2013 19:01, eryksun eryk...@gmail.com wrote: On Tue, Nov 26, 2013 at 11:50 AM, Walter Prins wpr...@gmail.com wrote: All those arrows and codes you see are called ANSI escape codes or ANSI control codes. It's a way to control/signal text colour and formatting inline

Re: [Tutor] Output not legible when debugging with ipdb

2013-11-26 Thread Walter Prins
Hi, Thanks for the highly educational response. On 26 November 2013 23:24, eryksun eryk...@gmail.com wrote: On Tue, Nov 26, 2013 at 4:28 PM, Walter Prins wpr...@gmail.com wrote: honest. Regarding Powershell (vs for example cmd.exe): The (slightly) perplexing/irritating/annoying thing

Re: [Tutor] Is this list active?

2013-11-16 Thread Walter Prins
Hi, On 16 November 2013 11:02, Vlad Olariu florinvlad.ola...@gmail.com wrote: is this active? Yes. (Please don't reply to digest posts without at least trimming it and adjusting the subject as appropriate.) Walter ___ Tutor maillist -

Re: [Tutor] Creating class / OOP structure

2013-11-06 Thread Walter Prins
Hi, On 6 November 2013 08:58, Mark Lawrence breamore...@yahoo.co.uk wrote: On 06/11/2013 02:19, Steven D'Aprano wrote: On Tue, Nov 05, 2013 at 03:55:05PM -0800, Johan Martinez wrote: I need help in modifying my program. Right now it looks as follows: [snip code] Can someone help me in

Re: [Tutor] String representation of NULL (non type) values

2013-11-05 Thread Walter Prins
Hi, On 5 November 2013 19:02, Danny Yoo d...@hashcollision.org wrote: Be extra careful if you're constructing SQL statements from user input. You have probably heard of the term SQL Injection or Bobby Tables, both of which are pretty much the same thing: your user may, intentionally or

Re: [Tutor] Python String Help

2013-10-29 Thread Walter Prins
Hi, On 28 October 2013 20:55, Alex Tenno alex.te...@gmail.com wrote: Hey everyone, I'm encountering a problem with a python function that I am supposed to create. OK. You should try to actually write the function yourself first, then give concrete details about what you've tried, and how

Re: [Tutor] ImportError: 'DLL load failed: %1 is not a valid Win32 application.'

2013-10-11 Thread Walter Prins
Hi, On 10 October 2013 11:34, Sreenivasulu vaddesreenivas...@gmail.com wrote: Hi, I have windows 8 64 bit machine and installed python 2.7.3 64 bit version . i have 32 bit package 4Suite-XML-1.0.24Suite-XML-1.0.2.win32.exe package but am getting below error : Python 2.7.3 (default,

Re: [Tutor] HELP I need help with Python Setup or to reach Marilyn Davis

2013-10-03 Thread Walter Prins
Hi Carolynn, On 3 October 2013 03:01, carolynn fryer carolynn...@yahoo.com wrote: I am at the point where I am just spinning my wheels. I tried to get help with logging on but so far I am just getting frustrated. Please note that you've sent an email regarding what appears to be possibly be

Re: [Tutor] soappy, soap, xml ..fuss

2013-10-01 Thread Walter Prins
Hi, On 1 October 2013 09:08, Ismar Sehic i.she...@gmail.com wrote: hello, it's me again with my stubborn soap and xml request.please take a look at this code and the output, just tell if i'm missing something - i don't get it. File /usr/lib/python2.6/socket.py, line 514, in

Re: [Tutor] writing python on the web

2013-09-30 Thread Walter Prins
Hi, On 30 September 2013 13:49, roberto robert...@gmail.com wrote: Hi, my school is considering a massive shift to Chromebooks. I've to carefully think about how could the students go on writing their python programs on the web. Do you know any online interpreter where programs might be

Re: [Tutor] Creating To Do List Program - Question

2013-09-29 Thread Walter Prins
On 29 September 2013 22:09, Joel Goldstick joel.goldst...@gmail.com wrote: mysql comes with python, and you can learn the basics over a weekend using the interactive tool that comes with it. Just a minor errata: I'm sure Joel meant to write sqlite, not mysql. (SQLite is indeed included with

Re: [Tutor] Suds, Lxml - sending an xml request

2013-09-23 Thread Walter Prins
Hi, On 20 September 2013 14:25, Ismar Sehic i.she...@gmail.com wrote: i'm probably very annoying and boring with these python web service :)and sorry for the previous message reply subject,wont happen again... the thing is, i'm provided with some service provider documentation, including

Re: [Tutor] Where do I start learning Python

2013-09-09 Thread Walter Prins
Hi, On 8 September 2013 21:00, olatunde Adebayo nopo...@yahoo.com wrote: hey everyone, I am taking a graduate level class this fall that required python programming. can anyone direct me to where can i get a free python training crash course / program anyone with idea. I have one week to

Re: [Tutor] python tutoring

2013-08-20 Thread Walter Prins
Hi, On 20 August 2013 14:22, Fowler, Trent fowle...@hendrix.edu wrote: I am a self-starter and highly motivated, but I live in a small town in South Korea and I don't have any friends who program. Since I also don't have a computer science background and python is my first language, I

Re: [Tutor] is the the two style of writting the same?

2013-08-20 Thread Walter Prins
Hi, On 20 August 2013 10:20, sikonai sikonai tanjyu...@gmail.com wrote: list=[1,2,3,4,5,6,7,8,9] list[9:0:-2] [9, 7, 5, 3] list[10:0:-2] [9, 7, 5, 3] I want to know whether they have some difference. For the specific list you show, the 2 expressions yield the same result. However

Re: [Tutor] Converting a string to an integer

2013-08-07 Thread Walter Prins
On 31 July 2013 16:14, Art Bullentini a...@mail.pyramid.net wrote: I'm trying to convert from a string of digits such as x = [y:y+1] into an integer using int(x). the book says I can do this, but I get an error message saying no can do. Anybody tell me what's going on? Please supply the

Re: [Tutor] Python Trouble, Please Help!

2013-08-07 Thread Walter Prins
Hi, On 25 July 2013 00:23, Jonathan Hong jayhong...@gmail.com wrote: Hello, I am currently working with the Python programming language and had a very basic question regarding the start up of Python. For some reason, when I open up the Command Prompt in my Windows 7 computer, I am unable

Re: [Tutor] How to extract numerator and denominator from fractions.Fraction(4, 32)?

2013-08-06 Thread Walter Prins
Hi Steven, Alan, On 6 August 2013 09:44, Alan Gauld alan.ga...@btinternet.com wrote: On 06/08/13 09:26, Steven D'Aprano wrote: All this is correct, but yield is more powerful than that. Not only does yield get used to return values from a function, it also gets used to send values *into* a

Re: [Tutor] unittest skipping tests

2013-08-01 Thread Walter Prins
Hi, On 1 August 2013 13:11, Matthew Ngaha chigga...@gmail.com wrote: im trying to do some unittesting and i've written 1 class with 4 test methods and it skips 2 of these methods for no reason. If i comment out the 2 it doesn't skip, it will now test the 2 it previously skipped. Is this the

Re: [Tutor] unittest skipping tests

2013-08-01 Thread Walter Prins
Hi, On 1 August 2013 14:22, Matthew Ngaha chigga...@gmail.com wrote: Thanks guys. i was following some examples and noticed it. I tried to use it in my program and the same thing happened. In this example, there are 6 tests, and only 4 run. http://bpaste.net/show/abLNTHU49w1j2M8Fey8X/ The

Re: [Tutor] True and 1 [was Re: use of the newer dict types]

2013-07-27 Thread Walter Prins
Hi, On 27 July 2013 11:36, Steven D'Aprano st...@pearwood.info wrote: However, this will test your knowledge: L = [] L.append(L) [L] == L True or false? Can you explain why? On 27 July 2013 20:14, Don Jennings dfjenni...@gmail.com wrote: In [20]: bool(L) Out[20]: True An empty list

[Tutor] Fwd: script in Raspberry pi python

2013-07-25 Thread Walter Prins
Hi, On 25 July 2013 19:45, Kirk Bailey kbai...@howlermonkey.net wrote: which python /usr/bin/python root@KirksPiBox1:/home/pi: ./RR.py bash: ./RR.py: /usr/bin/python^M: bad interpreter: No such file or directory root@KirksPiBox1:home/pi:_ Dave's correct. That ^M represents ctlr-m,

Re: [Tutor] sqlite3 woes opening Moz, FFox sqlite db with only the inevitable 'DatabaseError: file is encrypted or is not a database' occurring...

2013-07-24 Thread Walter Prins
Hi Peter, On 24 July 2013 09:20, Peter Otten __pete...@web.de wrote: If you don't want to switch to Python 3.3 -- or if it doesn't feature an sqlite version that supports WAL -- you could use sqlite's commandline tools to switch off WAL on a copy (!) of places.sqlite. I've just gone

Re: [Tutor] sqlite3 woes opening Moz, FFox sqlite db with only the inevitable 'DatabaseError: file is encrypted or is not a database' occurring...

2013-07-24 Thread Walter Prins
Hi, On 24 July 2013 17:08, Paul Smith paulrsmith7...@gmail.com wrote: Thanks but still stuck... Walt- Pete- I am trying to copy-update py 2.7.5 with latest sqlite3 for version fix but am running win 7 64bit and am getting these errors on both regsrv32 and WOW64 while trying to register

Re: [Tutor] suggestions for splitting file based on date

2013-07-19 Thread Walter Prins
Hi, On 19 July 2013 20:24, Sivaram Neelakantan nsivaram@gmail.com wrote: I've got some stock indices data that I plan to plot using matplotlib. The data is simply date, idx_close_value and my plan is to plot the last 30 day, 90, 180 day all time graphs of the indices. a) I can do the

Re: [Tutor] IOError when importing nose

2013-07-15 Thread Walter Prins
Hi, On 15 July 2013 12:08, Albert-Jan Roskam fo...@yahoo.com wrote: From: Japhy Bartlett ja...@pearachute.com I have to disagree with Walter about using system packages instead of pip, though his advice is spot on for fixing this issue and he obviously knows what he's doing. Very much my

Re: [Tutor] IOError when importing nose

2013-07-13 Thread Walter Prins
Hi, On 13 July 2013 15:14, Albert-Jan Roskam fo...@yahoo.com wrote: IOError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/pypi_classifiers-0.1-py2.7.egg/EGG-INFO/top_level.txt' quit()

Re: [Tutor] using python for parsing

2013-07-10 Thread Walter Prins
Hello, On 29 June 2013 19:00, Makarand Datar da...@wisc.edu wrote: Hi, So I am able to read in a file, and write out a file from python. I have some question about the text manipulation that I need to do between reading in a file and spitting out another. Couple of things I would like to

Re: [Tutor] looking for volunteers with testing simple python program

2013-06-25 Thread Walter Prins
Hi Alexander On 23 June 2013 22:46, Alexander rhettna...@gmail.com wrote: I guess this is for testing, but I have a question. If somebody sends you their .pub file (email or otherwise over internet), and a villainous third party intercepts that .pub file, will they be able to decrypt the

Re: [Tutor] First program after PyCamp

2013-06-10 Thread Walter Prins
Hi Bryan, On 10 June 2013 21:03, bja...@jamesgang.dyndns.org wrote: My problem is the text file that is output seems to contain EVERY file that the program went through rather than just the duplicates. Seems does not sound very certain... have you double checked whether your suspicion is in

Re: [Tutor] Future Python

2013-06-05 Thread Walter Prins
Jim, On 5 June 2013 20:58, Jim Mooney cybervigila...@gmail.com wrote: But Guido says ..no Python for browsers, alas. Hopefully, he's not too prescient. Why not javascript And Python for browsers? There just has to be enough of a clamor for it. You might be interested to know there's

Re: [Tutor] selenium programs stopped working

2013-06-04 Thread Walter Prins
Hi, On 4 June 2013 02:27, Benjamin Fishbein bfishbei...@gmail.com wrote: WebDriverException: Message: Can't load the profile. Profile Dir: /var/folders/vm/8th3csp91qb47xbhqhb4gcmhgn/T/tmpPeqacA Firefox output: *** LOG addons.xpi: startup\n*** LOG addons.xpi: Skipping unavailable install

Re: [Tutor] Python well-formed formulas

2013-05-28 Thread Walter Prins
Hi, On 28 May 2013 12:44, Citizen Kant citizenk...@gmail.com wrote: Could you please help me with a simple example of a Python well-formed formula in order to understand well-formed formulas and formation rules concepts properly? I'm assuming you perhaps meant well-formed expression. If

Re: [Tutor] Python well-formed formulas

2013-05-28 Thread Walter Prins
Citizen, On 28 May 2013 14:45, Citizen Kant citizenk...@gmail.com wrote: I'm trying to figure out the rules on how to recognize when a combination of symbols is considered a well formed expression in Python. How do you recognize that an arithmetic expression is a well formed (e.g. valid)

Re: [Tutor] still nosing around

2013-05-22 Thread Walter Prins
Hi, On 22 May 2013 05:26, Jim Mooney cybervigila...@gmail.com wrote: But that brings up a point. Does this mean that if I have to test a module with a lot of subroutines I have to rename every subroutine with 'test' appended? Some quick comments for what it's worth: (One of) the points

Re: [Tutor] Retrieving data from a web site

2013-05-18 Thread Walter Prins
Hi Just a minor observation: On 18 May 2013 13:44, Peter Otten __pete...@web.de wrote: Phil wrote: On 18/05/13 19:25, Peter Otten wrote: Are there alternatives that give the number as plain text? Further investigation shows that the numbers are available if I view the source of

Re: [Tutor] Pygraphics crashed

2013-05-17 Thread Walter Prins
Hi, On 16 May 2013 23:49, Jim Mooney cybervigila...@gmail.com wrote: By the way, do you mind if I ask why you're using PyGraphics? It's only meant to be used for education (and even there, AFAIK the only users are the University of Toronto (and even there, I think they stopped using it

Re: [Tutor] Can't install latest PIL

2013-05-16 Thread Walter Prins
Hi, On 16 May 2013 07:12, Jim Mooney cybervigila...@gmail.com wrote: Okay, I'm trying to install the latest PIL on win 7. It claims Python 2.7 was not found in the registry, although it's installed, on a path, and works fine. The install box lets you type in a directory but won't accept

Re: [Tutor] design question (Django?)

2013-04-18 Thread Walter Prins
Hi, On Sun, 14 Apr 2013, Don Jennings wrote: On Apr 14, 2013, at 7:06 AM, Albert-Jan Roskam wrote: Subject: Re: [Tutor] design question (Django?) On 13/04/13 09:48, Albert-Jan Roskam wrote: I think I have to make a diagram of this. This stuff is quite hard Would it also be a

Re: [Tutor] regex to promote Py 2 to Py 3?

2013-04-17 Thread Walter Prins
Hi, On 17 April 2013 06:11, Jim Mooney cybervigila...@gmail.com wrote: Generally the 2to3 script does an OK job. If you're using Windows it's [Python_Dir]\Tools\Scripts\2to3.py. http://docs.python.org/3/library/2to3 Thanks. I didn't know where to find

Re: [Tutor] Issue With a Python Game

2013-04-14 Thread Walter Prins
Hi John, On 10 April 2013 15:21, John Bochicchio luckytsuk...@gmail.com wrote: I have a question about a game I am making. I finished the overall code, but keep getting errors when I try to play. This is my most common error: C:\Users\John\Documents\Python Games\Noahpython

Re: [Tutor] building a website with python

2013-04-09 Thread Walter Prins
Hello Benjamin, On 9 April 2013 22:31, Benjamin Fishbein bfishbei...@gmail.com wrote: Hello. I learned Python this past year (with help from many of you) and wrote many programs for my small business. Now I want to build a website. I acquired the domain name through godaddy.com

Re: [Tutor] HELP: Creating animation from multiple plots

2013-03-27 Thread Walter Prins
Hello, On 27 March 2013 15:59, Sayan Chatterjee sayanchatter...@gmail.com wrote: Hi Amit, fo = fopen('fname','r+') fo.write(%d %d,j,counter) Is giving the following error: File ZA.py, line 30, in module fo = open('fname','r+') IOError: [Errno 2] No such file or directory:

Re: [Tutor] IndexError: index out of bounds

2013-03-27 Thread Walter Prins
Hi, On 27 March 2013 15:50, Sayan Chatterjee sayanchatter...@gmail.com wrote: Dear all, When trying to print or assign array elements, getting the following error: Traceback (most recent call last): File ZA.py, line 32, in module p_za[i] = p_initial[i] + t*K*cos(K*p_initial[i]);

Re: [Tutor] IndexError: index out of bounds

2013-03-27 Thread Walter Prins
Hi Sayan, On 27 March 2013 16:31, Sayan Chatterjee sayanchatter...@gmail.com wrote: p_za = [None]*N is not giving away the error message. for i in range(0,N): p_za.append = p_initial[i] + t*K*cos(K*p_initial[i]); is also not working. append() is a method, so using append you want

Re: [Tutor] Building Python 2.7.3 on RHEL 5.8 x86_64 -- Syntax Error

2013-03-26 Thread Walter Prins
Hi, On 26 March 2013 16:54, Hugo Arts hugo.yo...@gmail.com wrote: On Tue, Mar 26, 2013 at 3:18 PM, Sean Carolan scaro...@gmail.com wrote: Could it be that it is taking the system python executable which is probably 2.4? -Amit. I've tried it with python24, python25 and python27 and

Re: [Tutor] confusing installation

2013-03-01 Thread Walter Prins
Hi, On 1 March 2013 10:58, Alan Gauld alan.ga...@btinternet.com wrote: On 01/03/13 02:33, Lolo Lolo wrote: SQLAlchemy with easy install. Here is what this entire process might look like on a Windows-based PC... then it proceeds to write a whole bunch of god know what. It looks similar to

[Tutor] How to override getting items from a list for iteration

2013-02-10 Thread Walter Prins
Hello, I have a program where I'm overriding the retrieval of items from a list. As background: The data held by the lists are calculated but then read potentially many times thereafter, so in order to prevent needless re-calculating the same value over and over, and to remove checking/caching

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