Re: [Tutor] Readabilty vs 80 characters

On 19 Apr, 2012, at 15:29 , Tino Dai wrote: > Hi! > > I have a question about style. In PEP-8, it says don't exceed 79 > characters, but can this rule ever be trumped by > readability? > Yes, it obviously can. I am a big fan of the 79 character "rule", though. Even with screens and ter

Re: [Tutor] Unwanted "close failed in file object destructor" after broken pipe

> First, generate a file named "data.txt" as follows: > > -- 8< -- > for i in range(1,100): >print '.' * 80 > -- 8< -- > > After that, save the following snippet as "test.py" in the directory > containing "data.txt": > > -- 8< -

Re: [Tutor] summing lists

> I have 4 lists: > > >>> a > [40] > >>> b > [2] > >>> c > [23] > >>> d > [12] > Why are you using lists with a single element, instead of single integer variables? (thus, a=40, b=2, c=23, d=12.) > how is it possible to do add elements in list. sum() > I can do this using tupples, but I do

Re: [Tutor] How to use g_timeout_add () function?

> Hello all, i have a question: > > when i check gtk_time_out in the gtk+2 reference, it said " gtk_timeout_add > has been deprecated since version 2.4 and should not be used in newly-written > code. Use g_timeout_add() instead." > > but i don't know how tu use the g_timout_add() function: > m

Re: [Tutor] which gets called

> Hi, > > I want to create a class that inherits two other classes. > > class NewClass( A,B) > > But both "A" and "B" contain a method with the same name ("onKeyDown"). > > If my "NewClass" does not contain something to override the methods which one > would be called if > > myinstance = New

Re: [Tutor] a problem with a server and client

> i'm trying to implement a server that adds a time stamp to incoming text form > a client. > > the server's code is (but doesn't seem to have the problem as demoed by the > error below: > > from socket import * > from time import ctime > > HOST = '' > PORT = 21567 > BUFSIZ = 1024 > ADDR =(HOS

Re: [Tutor] Syntax error help

> Alright i have been trying to right a (relatively) simple to calculate area > and volume below is my current working code > def areamenu(): > print 'Square (1)' > print 'triangle (2)' > print 'rectangle (3)' > print 'trapazoid (4)' > print 'circle (5)' > > def squareacalc():

Re: [Tutor] Problem Stripping

> Python 2.4.3 on Red Hat 5. Trying to use strip to remove characters > but it doesn't seem to work like I thought. > > > res = subprocess.Popen(['uname', '-a'], stdout=subprocess.PIPE) > uname = res.stdout.read().strip() > uname > 'Linux myserver 2.6.18-274.el5PAE #1 SMP Fri Jul 8 17:59:09

Re: [Tutor] New to this list ....

Hi and welcome Barry, > One of the things I wanted to do is to use a four integer array to get four > integers returned from a function. I ended up using what I think is a list. > (I'm not really sure of the datatypes yet). This is what I did, and it > works, but looks very inelegant to me:

Re: [Tutor] plotting several datasets and calling data from afar

See below, but not all the way. Interspersed in the code. > >I am trying to set up a code to do some plotting and before I get too > > far I wanted to ask some structure questions. Basically I want to tell > > python to read 2 datasets, plot them on the same scale on the same x-y axis >

Re: [Tutor] plotting several datasets and calling data from afar

Hi Elaina, > Hi everyone, >I am trying to set up a code to do some plotting and before I get too far > I wanted to ask some structure questions. Basically I want to tell python to > read 2 datasets, plot them on the same scale on the same x-y axis , read a > third dataset and match the

Re: [Tutor] Permissions Error

> Hi everyone, > > If I've created a folder, why would I receive a permissions error when trying > to copy the file. My source code is here: > http://pastebin.com/1iX7pGDw What's the permission error you get? Can't you copy the file, or not create the destination directory? Or you may not be al

Re: [Tutor] Simple GUI

> Im trying to code a simple GUI but I'm having a bit of a problem. Heres my > code: > > from tkinter import * > class Application(Frame): > def __init__(self,master=None): > Frame.__init__(self,master) > self.grid(sticky=N+S+E+W) > self.cr

Re: [Tutor] roman to arabic

> I wrote a little program that does the conversion (I won't post it because it > would be a spoiler for the OP). The one thing I don't know, though, is how to > formalise > that it is not allowed to write something like X, but instead just > II. Or not DM but simply D. The rule is to wr

Re: [Tutor] problem editing modules and defs

Hi David, > Hi, > I am new to python and have made a couple of definitions. I imported them and > they worked ok. I they worked except for one which gave me the error > "NameError: global name 'np' is not defined". I then edited my script for the > def to include "import numpy as np" saved it

Re: [Tutor] Solve wave equation

> OK so I can solve the equation but now I am having trouble plotting the > solution! I would like to produce a surface plot with colors defined by p and > animate it. That is plot the value of p at all x and z, over time (t). My > code to get p is below but I really have no idea how to plot th

Re: [Tutor] Create a table by writing to a text file.

> Hi, > I have created a list of containing strings that represent distances between > many different points and would like to display the results in a table. > I have been trying to write them to a text file but it is difficult to > organise them into rows and columns with appropriate spacing to

Re: [Tutor] ssh from Windows to a Solaris server

> I’m a newbie in python programming … > > I wrote the followings to ssh from Windows to a Solaris server: > > command1 = "plink -ssh -pw myPassword myUserName@myServerIP" > p1 = subprocess.Popen(command1) > p2 = subprocess.Popen('ls') > > I could verify that command1 was executed successfull

Re: [Tutor] Some help Please

Hi Joseph, > take an example of updating Bank Accounts, > gaving the following table: > > acc_idacc_namestanding_Balance > mn0001computer 2 > > my problem is how can i credit the standing balance from user data,as > in making a deposi

Re: [Tutor] how to stop a running program in python without closing python interface?

>> actually a i ran a progam in python which is sufficiently large . so i >> want to stop the execution of the program now . how can i do this? > > This will depend on your operating system. > > On a Mac you press alt + command + esc and the choose the program you want to > Force Quit. I have no

Re: [Tutor] (no subject)

Hi, Tip: use a meaningful subject line; attracts more/better attention and makes it easier to trace your email in the archives. Continued at the bottom. > import numpy as np > import matplotlib.pyplot as plt > E=[81.97400737666324, 322.0939978589591, 694.5766491226185] > V0=1000 > a=0.1 > def

Re: [Tutor] confusion about scipy

> ImportError Traceback (most recent call last) > C:\Python27\lib\site-packages\IPython\utils\py3compat.pyc in > execfile(fname, glob, loc) >166 else: >167 filename = fname > --> 168 exec compile(scripttext, filename, 'ex

Re: [Tutor] Python with HTML

> hi everyone, > > I want to make a web page which has to include some python script and html > tags as well, am not getting how to do that . > I searched some articles but cant understand them . > is there anything like linking an external html file into python script ? > > Can u please help f

Re: [Tutor] compile time calculator

> Well, using python documentation, I did this.. > > (calculating execution time). > > def main(): > ## This is my whole puzzle code... > > > fobj_ip = open('D:/code/py/input.txt', 'r') > fobj_op = open('D:/code/py/output.txt','w') > > line=1 > for eachLine in fobj_ip: >

Re: [Tutor] Question regarding setup.py

> I had a question regarding installing packages that I posted a couple of days > ago. But I'm re-sending the question again.. this time with output so that it > is clearer. > > I am unable to install libraries using 'python setup.py install' > > Say that I'm installing a package "kando". I ext

Re: [Tutor] Question about install.py

Hi, > I'm new to Python and was wondering if someone could answer a question I have. > Say that I have a python library, arithmetic-0.5, located at /X/arithmetic-0.5 > I'd like to run setup and install it. But I guess since /X/arithmetic-0.5 is > not in install.py's default search path, it come

Re: [Tutor] changing coordinate

Hi Sue, > I am trying to define a new coordinate for My plot. > > I have a plot x axis is Concentration, Y axis, depth or Z. > > Z= -1000 um. > and I would like to see the the trend and plot of concentration up to > -300 um and see how the plot changed according to the depth. So, my > main que

Re: [Tutor] question regarding regular expression compile

> I am determining a regular expression that can recognize the any of the > following strings: > > MAT file log\20101225 deleted > MAT file billing\20101225 deleted > MAT file util\20101225 deleted > MAT file carrier\20101225 deleted > > I begin by creating a regular expression object so that

Re: [Tutor] variabel from raw input into re.search?

Hi Tommy, > I try to write a program, where the user can write a word or a name and I > will tell how many times the subject was mentioned in a text, I’m hosting. > I guess it’s possible but not this way it seems? > The re is only searching for the word “name” and not the variable name > I’m us

Re: [Tutor] matplotlib.pylab.plotfile formatting help

Hi Sean, > I've got a csv file that contains two data fields, the short name of a > month and an integer. I'm experimenting with pylab and ipython to get > a feel for how pylab works. I'm able to generate a bar graph from my > data, but there are two problems with it: > > 1. I don't want "20

Re: [Tutor] paramiko error with put()

I don't really know the answer, but more a question/note (below): > Hi I am using paramiko 1.7.6 "fanny" on microsoft windows xp v2002 service > pack3 with python 2.4.2 > > I have the follwing script: > import paramiko > > hostname='blah' > port=22 > username='blah' > password='blah' > fullpat

Re: [Tutor] why "ifconfig" is alway running?

> #!/usr/bin/env python > import datetime > import subprocess > import sys > import os > import signal > from time import sleep > > def host_run(cmd, secs=10): >print("running %s" % cmd) >timeout = datetime.timedelta(seconds=secs) >proc =

Re: [Tutor] why "ifconfig" is alway running?

>>> #!/usr/bin/env python >>> import datetime >>> import subprocess >>> import sys >>> import os >>> import signal >>> from time import sleep >>> >>> def host_run(cmd, secs=10): >>>print("running %s" % cmd) >>>timeout = datetime.timedelta(seconds=secs) >>>proc = subprocess.Popen(cmd, s

Re: [Tutor] why "ifconfig" is alway running?

> #!/usr/bin/env python > import datetime > import subprocess > import sys > import os > import signal > from time import sleep > > def host_run(cmd, secs=10): >print("running %s" % cmd) >timeout = datetime.timedelta(seconds=secs) >proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, >

Re: [Tutor] Question on tkinter event binding

> Hi Patty, > > As far as books are concerned, I actually prefer (programming) books in the > English language. Although the Dutch don't do it as much as e.g. the French > or the Germans, I hate it when technical terms are translated into Dutch in a > somewhat artificial way ("Computer" is "Or

Re: [Tutor] A regular expression problem

> Here's what I do. This was just a first attempt to get strings > starting with a non alpha-numeric symbol. If this had worked, I would > have continued to build the regular expression to get words with non > alpha-numeric symbols in the middle and in the end. Alas, even this > first attempt did

Re: [Tutor] temporarily modifying sys.path

> I need a function that will import a module (using __import__) from > only one specific location on my filesystem. Name collisions are > possible. To avoid this I could *temporarily* modify sys.path for > the operation so that it contains only the path that I want > to work from. Just curious, b

Re: [Tutor] Working with interactive Python shell

>> You're not really showing what exactly you type. That's often more clearer >> than describing what you do, although in this case we can get a pretty good >> picture anyway. > > OK, here's what I do: > import test > > I know the shell is importing the file because I can see the followin

Re: [Tutor] Working with interactive Python shell

> > --- > One question for Steve (or for whoever wants to answer): you say you > have a terminal with two tabs (neat, I wonder whether I can get tabs > as well for my terminal in OS X) In Terminal.app, just type command-T and you get a new tab. Switch with the mouse or command-shift-[ & com

Re: [Tutor] Math: integers to a fractional power

> OK, so I have a question for you math people: I am trying to solve a > quartic equation (Ax^4 + Bx^3 + Cx^2 + Dx + E) using Ferrari's Method, which > I found on Wikipedia at this location. > > I'm using Python 3.1.2 (on Mac OS X 10.6, in case that matters). > > First, since

Re: [Tutor] Recommend a MVC framework

>> Django can run be run through mod_wsgi (or mod_python if you >> really want). And other web servers than Apache will also work. > >> Don't know what you mean with "shared server", but if you mean >> multiple accounts running their web apps through one Apache >> server, that can work (provided

Re: [Tutor] Recommend a MVC framework

> I've been web programming for 15 years now. 8 of it using python. > > Lately I have been 'studying' PHP via the CodeIgnitor Framework. > > Since python remains my first choice, but since I am also > impressed with the concept of CodeIgnitor, I would welcome > recommendations on a python MVC fra

Re: [Tutor] Creating one file out of all the files in a directory

> Again, thanks a lot. Too bad you and Kushal don't live close. I would > like to invite you to a beer or a coffe or something. Thanks for the offer. Some time ever in the far, far future perhaps ;-). > >> So close ;-). >> What you're missing is the next write statement: >> f.write(data) >> >>

Re: [Tutor] Building input for a function call

> This is a more precise question, the above was after trying different methods, > and it got a little confusing. > > Why in the below does using in line 12:self.objectsvars = > 'menuitemhere','menuitemhere','menuitemhere','menuitemhere', not work, > but placing 'menuitemhere','menuitemhere','menu

Re: [Tutor] Creating one file out of all the files in a directory

> I'm trying to create a script to do the following. I have a directory > containing hundreds of text files. I need to create a single file with > the contents of all the files in the directory. Within that file, > though, I need to create marks that indicate the division between the > contents of

Re: [Tutor] How to copy file from a source, I do not know the source file name, Only path to the src directory I know

rinciple) OS-agnostic. Also, if you use 'os.listdir(src)', why not use src again when assigning ffname? Cheers, Evert > print ffname > #shutil.copy(ffname,dst2) > shutil.move(ffname,dst3) > " > > > On Tue, Nov 9, 2010 at 4:38 PM, Evert Rol

Re: [Tutor] How to copy file from a source, I do not know the source file name, Only path to the src directory I know

> Hi All > I am trying our "Python" . > My aim is to copy a file to a location and later removing the > file.I had written a small script which works.It works only if I > specify the source file name. I would like to make it work in a > scenario in which I do not know the name of the source fil

Re: [Tutor] scope, visibility?

> Here is my main class: > > class PenduGTK: > > Inside the class is a method with a bit of code: > > def masque(chaine,liInd=0): > > i = 0 > lenght = len(chaine) > > The offending line is the one with len(chaine) > > Here are the error messages: > > penduGTK.py > Trace

Re: [Tutor] possible to run a python script from non-cgi?

> FYI: I am working in a linux environment with python 2.6.5 > am an experienced web developer with 8 years in python, but > :) I have never tried this trick before: > > I note that with the right .htaccess file, I can run a php file, > from a non-cgi location. > Example: On my machine, my wwwroot

Re: [Tutor] What's the best way to model an unfair coin?

> Actually, I used the unfair coin model as the simplest example of the > kind of thing I want to do -- which is to model the USD->Yen exchange > rate. I want the next quote to vary in a controlled random way, by > assigning probabilities to various possible changes in the rate. See >

Re: [Tutor] What's the best way to model an unfair coin?

> Btw, to be pedantic, 1/e is not an irrational number, just a real number. i/e > would be. My bad: irrational != imaginary. And real = irrational. Things are definitely a bit rusty... ___ Tutor maillist - Tutor@python.org To unsubscribe or change s

Re: [Tutor] What's the best way to model an unfair coin?

> What's the best way to model an unfair coin? > > This is one way to do it, I suppose: Create a list containing only > 'H's and 'T's. If you want the coin to have the probability of a head > to be 6/11, > > ['H', 'H', 'H', 'H', 'H', 'H', 'T', 'T', 'T', 'T', 'T'] > > is the list to use. Use rand

Re: [Tutor] Networking

>>> But what if I want it to serve one client, go to another and then go back. >>> How does that work? > > You do some I/O multi-plexing or multi-processing/threading. > > You might want to do some reading on this. The very last example on http://docs.python.org/library/socketserver.html may he

Re: [Tutor] Networking

Hi Chris, Bit hard to comment on the actual code, as it was in attachments, but the important bit is here: class Handler(SocketServer.BaseRequestHandler): #the handler '''A handler which calls %s in the handle method.'''%handle_func def handle(self): #the handle method

Re: [Tutor] Writing elements of an array to a file using CSV module

umber > - > > I tried the other suggestion on the list (posted by Alan Gould), > namely to replace the %f formatting string with %s in the > write.writerow statement: > - > writer.writerow( ( file_details[0], file_details[1], str(data[0]) ) ) > - > > Thi

Re: [Tutor] Writing elements of an array to a file using CSV module

> I have a numpy array ('data') that is the result of reading a netCDF > file, and it typically looks like this: > > array([ 0., 0., 0., 0.], dtype=float32) > > > I want to write this, after a date and time, to a CSV file, so the CSV > file would have the entry: > >2000-02-01,09:00,0.0,0

Re: [Tutor] urllib problem

> I have this program : > > import urllib > import re > f = > urllib.urlopen("http://www.pythonchallenge.com/pc/def/linkedlist.php?nothing=6";) > inhoud = f.read() > f.close() > nummer = re.search('[0-9]', inhoud) > volgende = int(nummer.group()) > teller = 1 > while teller <= 3 : > url = "

Re: [Tutor] Multiple regex replacements, lists and for.

> I'm new to python and inexperienced in programming but I'm trying hard. > I have a shell script that I'm converting over to python. > Part of the script replaces some lines of text. > I can do this in python, and get the output I want, but so far only using sed. > Here's an example script: > > i

Re: [Tutor] OpenMP

> Hi, > I have searched about how to use openMP using python and I couldn't fine any > helpful info. anyone can help me on this. No openMP, but iPython could do what you want (parallel and some distributed computing): http://ipython.scipy.org/doc/stable/html/ Evert > > My idea is that to

Re: [Tutor] Rounding a Python float to the nearest half integer

> @Evert, I didn't figure out that your response was a solution, thought it was > a question. Must be coffee time :P > > I tried it and, for instance, the rounded value (9) / 2 gave me 4.0 Couldn't > get it until I noticed that @Joel divided the roudned figure by a decimal > 2.0. That gave 4.5,

Re: [Tutor] Rounding a Python float to the nearest half integer

> I realise that one cannot have a half integer :) I meant how would one round > off to the first decimal nearest to either 0.5, or a whole number. > > Ugh...does anyone get what I'm trying to articulate? :) Multiply by 2, round(), divide by 2? > > On Fri, Oct 8, 2010 at 2:51 PM, Sithembewena

Re: [Tutor] Non-ASCII

> I'm going through an online tutorial for Jython (www.jython.org). I can't > find a place to ask a question on that site so I thought I'd try here. I > believe the code is supposed to traverse a directory, identifying file types. > The script is failing with the following message: > > File ""

Re: [Tutor] wrap methods for logging purposes

> I used a the recipe (http://aspn.activestate.com/ASPN/Coo.../Recipe/198078) > used to wrap methods for logging purposes. logging classes. But it does seem > to work well with classes inherit form other classes - i get recursion > errors! > > Here is an example of the classes .. > > class

Re: [Tutor] pymssql and encoding

> >>> print customerName > ImmobiliŠre (whatever) > >>> customerName > 'Immobili\x8are (whatever)' > > There should be a small E with a grave accent (è) instead of the capital S > with a caron (Š) I'm getting. > > I've tried applying various encodings, but to no avail: > > When executed from

Re: [Tutor] specifying precision with scientific notation

> I want to print scientific numbers with a specified number of decimal places. > However, I want the number printed to be dynamically determined by the data. > Example: > >> a = 0.00762921383941 >> ea = 0.000830132912068 >> a / ea > 9.190352205653852 > > By default, I will print the uncertai

Re: [Tutor] Networking

> Dear Tutors, > I have attached my 2 programs for networking. It uses socket and > SocketServer, but it just simplifies it even more. The problem is it won't > work. The Client raises the error, (with trace back) > Traceback (most recent call last): > File "G:\My Dropbox\My Dropbox\Chris\N

Re: [Tutor] inheritance problem

Hi Roelof, > Im following this page : > http://openbookproject.net/thinkcs/python/english2e/ch17.html I just checked this, and it appears you've copied this example fine. > class Deck: >def __init__(self): >self.cards = [] >for suit in range(4): >for rank in

Re: [Tutor] function error

>> Perhaps if you provide the full traceback from the error (assuming you're >> still getting this >error); tracebacks generally show the offending code as >> well. It may be something that's >simply overlooked but shows in the >> traceback. >> >> > > here it is: > > TypeError

Re: [Tutor] Problems install Python

> I had just download PeGreSQL, unzip and installed it, but I have a problem > such as: > > phuong...@ubuntu:~/PyGreSQL-4.0$ python setup.py build > sh: pg_config: not found > Traceback (most recent call last): > File "setup.py", line 94, in > pg_include_dir = pg_config('includedir') > F

Re: [Tutor] function error

>> It seems that ur turtle.position doesn't return a list because of this when >> indexing is done on that u get this kind of error. >> --nitin > > it seemed to me that kind of error but then i found that it was a > list, as expected: > > $ type(turtle.position()) > $ > $ abs(turtle.position()[

Re: [Tutor] pyMVPA and OSError

Hi, > I am very much new to python, and thus I am likely to feel stupid about > asking. But I need to get past this to continue with my work. > I need pyMVPA module to run some analysis on fMRI data, but as a start I want > to at first play around with the sample data provided on pyMVPA websit

Re: [Tutor] unittest testing order...

>> List, >> >> When using the unittest module, tests are run in alphanumeric order. >> What's the suggested way of specifying a test order? > > There isn't one. It shouldn't matter what order the tests run, no test > should *rely* on another test. > > (Although of course, if one test fails, a

Re: [Tutor] function with multiple checks

> I've got a small function that I'm using to check whether a password is of a > certain length and contains mixed case, numbers and punctuation. > > Originally I was using multiple "if re.search" for the patterns but it looked > terrible so I've read up on list comprehensions and it's slightly

Re: [Tutor] dynamic arrays?

> One thing I have never much liked about Python is its need for > specifically sized arrays and lack of a dynamic, array-like data > structure. For example, the following fails with a "list assignment > index out of range" error: > > a=[] > i=0 > for l in open("file.txt", "r"): > a[i]=l > i+=1

Re: [Tutor] input and raw input

> > any one have an idea about how we can input many number in the one time and > > change it to list. > > for example: > > > > a=input("Enter the number of your class in the school:") # the number > > can be enter as: 12,13,14 or 12 13 14 with a space in between. > > > > now how I can put th

Re: [Tutor] Tutor Digest, Vol 79, Issue 134

> I started seting up django. the only issue I am having is that all > instructions seem to assume that I am on linux.Don't suppose there are any > good instructions for those on a windows based system. Firstly: please don't reply to an unrelated message, but start a new one (with a proper subj

Re: [Tutor] input and raw input

> any one have an idea about how we can input many number in the one time and > change it to list. > for example: > > a=input("Enter the number of your class in the school:") # the number can > be enter as: 12,13,14 or 12 13 14 with a space in between. > > now how I can put these numbers

Re: [Tutor] trouble with a small Tkinter example

> I'm having trouble with this small example program: > > http://en.literateprograms.org/Bresenham%27s_line_algorithm_%28Python%29 > > When I run it, I only get a blank grey window. I'm running Python 2.6 under > Windows XP. > > If there's a problem with the code, I can't see it... it seems lik

Re: [Tutor] Bus Error with matplotlib

> Hi, I have been trying to install matplotlib for python on my mac which is > running snow leopard. The installation appeared to go well until I tried the > following > >> python import matplotlib import matplotlib.pyplot > Bus error >> > > It is very annoying, I have posted the err

Re: [Tutor] robots question

> As a exercise from this book ( Thinking like a computer scientist ) I have to > make this programm on this > page(http://openbookproject.net/thinkcs/python/english2e/ch12.html) > Exercise 11 > > # > # robots.py > # > from gasp import * Argh! Is that really in the book? Bad book, bad. You c

Re: [Tutor] Function behavior

> I am unclear on the behavior of using a function. Below is a short code I > wrote to print an amount out after inputting the number of match. > > # TEST Function.py > > def change(amount): >if match == 1: >amount = 0 >if match == 2: >amount = 0 >if match == 3: >

Re: [Tutor] quick speed question

> Hello Tutors, > > I was just wondering if you have a dictionary key is it faster to do: > > if dict['key'] == 'foo': >... > > or is this faster: > > if 'foo' in dict['key']: >... > > Or is there any difference and I'm chasing ghosts? The latter: they are not the same: >>> d = {'key

Re: [Tutor] what happened to the cards module

saw this, and if it's useful and usable to you. And I certainly don't know what you mean by a card playing framework: do you mean (library) code, which language, what "card game"? Evert > Thanks. > > John Soares > jsoa...@safe-mail.net > > Ori

Re: [Tutor] selecting elements from dictionary

> using: > > for key, value in xdic.items(): > if 1 in value and 2 in value or 3 in value: > print key > > > also print keys that have values such as [1,2,3]. > > In cases where there is [1,2,3] and [1,2] also reported. > > How can I extract those keys that have values only [1,2]

Re: [Tutor] what happened to the cards module

> I downloaded Python 2.6.6 for windows but I can't access the "Cards" module > for playing card games. > > Did it get renamed? If so, how can I find it? I don't think there's a Cards module in the standard library. At least, I've never seen it, nor can I find any mention about it on the python

Re: [Tutor] re.findall parentheses problem

> I have a regex that matches dates in various formats. I've tested the regex > in a reliable testbed, and it seems to match what I want (dates in formats > like "1 Jan 2010" and "January 1, 2010" and also "January 2008"). It's just > that using re.findall with it is giving me weird output. I

Re: [Tutor] What's the best way to ask forgiveness here?

> I've been coding Python long enough that 'asking forgiveness instead of > permission' is my first instinct, but the resulting code is sometimes clumsy, > and I wonder if someone can suggest something I'm missing, or at least > validate what's going on here in some way. > > What I'm trying to

Re: [Tutor] tree problem

> Write a program named litter.py that creates an empty file named trash.txt in > each subdirectory of a directory tree given the root of the tree as an > argument (or the current directory as a default). > > So I change the example to this : > > def traverse(path, s='.\n', f=0, d=0): > path2f

Re: [Tutor] Trapping HTTP Authentication Failure

>> I'm not sure what you're exactly doing here, or what you're getting, >> but I did get curious and dug around urllib2.py. Apparently, there is >> a hardcoded 5 retries before the authentication really fails. So any >> stack trace would be the normal stack trace times 5. Not the 30 you >> mentio

Re: [Tutor] Trapping HTTP Authentication Failure

>>> My script to call a web service authenticates. > >> Sorry, but where is the (full) script? I missed an attachment or >> (preferably) a link. > > Hello, > > Sorry, the verb of the sentence is "authenticates," as in, "My script > ... authenticates." Sorry, misread that. Although code does

Re: [Tutor] smtp connection problem --- socket error 10061

> I could not connect with gmail smtp server in Vista 32( worked ok in XP 32). > Both vista and xp have same anti-virus software. > smtplib.SMTP("smtp.gmail.com",587) > > Traceback (most recent call last): > File "", line 1, in >smtplib.SMTP("smtp.gmail.com",587) > File "C:\Program F

Re: [Tutor] Trapping HTTP Authentication Failure

> My script to call a web service authenticates. Sorry, but where is the (full) script? I missed an attachment or (preferably) a link. > I would like to be > able to trap an exception if the authentication fails. The script > loops over a list of dates and I don't want it to retry for every

Re: [Tutor] Exception Handling and Stack traces

>>> I can't work out how to suppress stacktrace printing when exceptions >>> are thrown. >> >> [snip rant] >> >> It might have been a good idea to read a tutorial like >> >> http://docs.python.org/tutorial/errors.html#handling-exceptions > >> or ask before you got annoyed enough to write that r

Re: [Tutor] Exception Handling and Stack traces

> I can't work out how to suppress stacktrace printing when exceptions > are thrown. > > I want the thrown exception to pass a message on the console, just > like Java does when I catch an exception and print e.getMessage(). > > I tried some of the examples of controlling traceback through the >

Re: [Tutor] slicing a string

>> But remember that you can make it simpler if you simply don't specify >> the start and end points: >> > 'hello'[::-1] >> 'olleh' >> > > While I know that idiom works, I haven't really found an explanation > as to *why* it works that way. > > For a string S: > * Using range, you need ran

Re: [Tutor] sort problem

> I have this : > > def sort_sequence(seq): > """ > >>> sort_sequence([3, 4, 6, 7, 8, 2]) > [2, 3, 4, 6, 7, 8] > >>> sort_sequence((3, 4, 6, 7, 8, 2)) > (2, 3, 4, 6, 7, 8) > >>> sort_sequence("nothappy") > 'ahnoppty' > """ >if type(seq) == type([]):

Re: [Tutor] Python command calls the wrong version!

> Dear Python Tutors, > > I am new to Python, having perviously used IDL for all my scripts. I was > hoping to use Python and so I have just downloaded and installed version 2.6 > using the mac installer. That all went fine. > > I then opened up X11, all fine. > > Then I typed in >python > >

Re: [Tutor] for loop results into list

On 5 Sep 2010, at 22:31 , Micheal Beatty wrote: > On 09/05/2010 03:16 PM, Evert Rol wrote: >>>>>>> I'm having a little problem figuring out how to accomplish this simple >>>>>>> task. I'd like to take a list of 6 numbers and add every permu

Re: [Tutor] for loop results into list

> > I'm having a little problem figuring out how to accomplish this simple > task. I'd like to take a list of 6 numbers and add every permutation of > those numbers in groups of four. For example for 1, 2, 3, 4, 5, 6 add 1 + > 1 + 1 +1 then 1 + 1 + 1 +2 etc. until reaching 6 + 6

Re: [Tutor] for loop results into list

>>> I'm having a little problem figuring out how to accomplish this simple >>> task. I'd like to take a list of 6 numbers and add every permutation of >>> those numbers in groups of four. For example for 1, 2, 3, 4, 5, 6 add 1 + 1 >>> + 1 +1 then 1 + 1 + 1 +2 etc. until reaching 6 + 6 + 6 + 6. U

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