at 'zip' is
attempting to do.
Do you see anything else when you execute the program? Does anything else
come out of standard error?
Good luck to you.
-- Forwarded message --
Date: Fri, 3 Dec 2004 10:24:15 +0600
From: Ramkumar Parimal Alagan <[EMAIL PROTEC
On Thu, 2 Dec 2004, Jacob S. wrote:
> If you or anybody else is interested, I've written a script for codes like
> kids in junior high use to write notes to each other with...
Hi Jacob,
Cool! Do you mind if I make some comments on the code? If you do mind...
um... skip this message. *grin*
On Thu, 2 Dec 2004, Daniel wrote:
> I need to know how to run another module through one
Hi Daniel,
Have you had a chance to look at one of the tutorials on:
http://www.python.org/moin/BeginnersGuide_2fNonProgrammers
I'm guessing that youe trying to use modules; most of the tutorials sh
actually
very powerful. As a concrete example, we can write a module that
dynamically aggregates all unit tests in a directory into a single suite:
###
"""test_all.py: calls all the 'test_*' modules in the current
directory.
Danny Yoo ([EMAIL PROTECTED])
"""
> >Yowza; that's some bug. Danny, do you happen to know the bug number?
> >I can't find it on sourceforge.
>
> It's been like that since 2.3 as far as I know. It generates a
> connection to localhost to run code in a separate environment.
Hi Mike,
I wish I knew what the problem was in better d
On Fri, 3 Dec 2004, Mike Hansen wrote:
> That rooted out the problem. A while ago, I changed the colors to kind
> of match my VIM color theme(ps_color). When I did
> idlelib.PyShell.main(), IDLE came up with my custom color theme.
> However, there was a bunch of warnings about my theme. From IDL
On Sat, 4 Dec 2004, William Allison wrote:
> I compiled Python 2.3.4 from source, but now I would like to upgrade to
> 2.4. There doesn't seem to be a "make uninstall" target for 2.3.4.
> Will compiling 2.4 overwrite the older version, or will I have two
> versions of Python on my system?
Hi
> I don't want to introduce insecurity. But also I want to really
> understand what the problem is -- especially because I teach python.
Hi Marilyn,
Here is an example of a string that can cause a StackOverflow error to
happen:
###
s = "(lambda loop: loop(loop)) (lambda self: self(self))"
eva
On Sun, 5 Dec 2004, Alan Gauld wrote:
> > And I can't see the security problem, unless there's a security
> > problem already, like if I allowed incoming email to dictate the
> > parameters that I send through the socket. The email provides data
> > for argv[1:] but argv[0] is hard-coded.
> >
>
On Mon, 6 Dec 2004, kumar s wrote:
> Here is how my file looks:
>
> Name=3492_at
> Cell1=481 13 (The space between (481 and 13 is tab)
> Cell1=481 13
> Cell1=481 13
> Name=1001_at
> Cell1=481 13
> Cell2=481 12
> Cell1=481 13
> Cell1=481 13
> Cell2=481 12
> Name=1002_at
> Cell3=482 12
> Cell1=481
On Tue, 7 Dec 2004, Kent Johnson wrote:
> I think the idea is to back-port bugfixes from 2.4 to 2.3. Then that is
> the end of the line for 2.3.
Yes. The policy for bugfix releases is in PEP 6:
http://www.python.org/peps/pep-0006.html
Here's what they say about bugfix releases:
"""
On Tue, 7 Dec 2004, Jason Child wrote:
> Ok, so I have a decent grasp of python and have coded quite a few
> scripts. I must say that the language rocks. I would like to embed
> python into a C app to provide some scripting support.
Hi Jason,
We have to first mention that most of us here are
On Tue, 7 Dec 2004, Vincent Nijs wrote:
> Has anyone ever tried to send commands to a running interactive python
> session from, say, the command line or another app?
Yes. This sort of thing can be done through an "expect" script.
http://expect.nist.gov/
There's a port of expect for Pyth
On Thu, 9 Dec 2004, Jacob S. wrote:
> Nothing I can do can fix my problem. It appears as though
> pythonw.exe is not working properly in the python 2.4 distribution.
[some text cut]
> The symptoms: I click on edit with
> idle--which runs the command "C:\python24\pythonw.exe"
> "C:\python
On Tue, 14 Dec 2004, Nik wrote:
> ok, problem solved (well, partly - at least as much as I need it to be).
>
> status = os.system('ps') doesn't set status equal to the output text, it
> sets it to the return of the call (in this case '0'). What I really want
> to do is
>
> status = os.popen('ps'
On Tue, 14 Dec 2004, Gooch, John wrote:
> I am used to ( in Perl ) the entire string being searched for a match
> when using RegExp's. I assumed this was the way Python would do it do,
> as Java/Javascript/VbScript all behaved in this manner. However, I found
> that I had to add ".*" in front of
On Thu, 16 Dec 2004, Scott Melnyk wrote:
> I recently suffered a loss of programming files (and I had been
> putting off my backups...)
Hi Scott,
[Side note that's not really related to Python: if you don't use a version
control system to manage your software yet, please learn to use one.
The
On Thu, 16 Dec 2004, mdcooper wrote:
> I am trying to run a least squares program (written by Konrad Hinsen)
Hi Matthew,
You're assuming that we know who Konrad Hinsen is. *grin* Ok, when you're
referring to the least-squared code, are you referring to a module in
Scientific Python?
Please p
On Thu, 16 Dec 2004, mdcooper wrote:
> I am trying to get a corrolation between a large number of variables and for
> many similar equations :
>(Ca1 * xa^2) + (Ca2 * ya^2) + (Ca3 * za^2) + ... = ta
>(Cb1 * xb^2) + (Cb2 * yb^2) + (Cb3 * zb^2) + ... = tb
>
> which is solved to get:
>(
On Fri, 17 Dec 2004, Rene Bourgoin wrote:
> Yes i believe im looking for the python version of the Jakarta databse
> connection pool!!
Hi Rene,
I haven't looked at this too closely yet, but there are projects out there
for connection pools. For example:
http://sqlrelay.sourceforge.net/
On Fri, 17 Dec 2004, Rene Bourgoin wrote:
> Ive been learning to interact with databases using python and i was
> looking for ways to return a SELECT query result in a plain format. what
> i mean by plain format is :
>
> name numberaddress
> Fred Smith 2125553243 1 main st
On Fri, 17 Dec 2004, Kent Johnson wrote:
> The recipe you cite has the pp() function and an example of its use. It
> sounds like that is what you want.
Part of the pandemonium was my fault. I completely missed your earlier
post here:
http://mail.python.org/pipermail/tutor/2004-December/0
On Fri, 10 Dec 2004, Ertl, John wrote:
> I am trying to get the maximum value in a 2-D array. I can use max but
> it returns the 1-D array that the max value is in and I then I need to
> do max again on that array to get the single max value.
>
> There has to be a more straightforward way...I h
Forwarding for Lumka:
-- Forwarded message --
From: Lumka Msibi
Date: Tue, Apr 20, 2010 at 2:51 PM
Subject: Fwd: python tutor needed
To: Danny Yoo , "dany.yoo"
This
communication is intended for the addressee only. It is confidential.
If you have received this com
On Sat, 18 Dec 2004, Jacob S. wrote:
> I think I'm going to burst out in tears. Mike Hansen gave the solution
> to the very problem I'm having, yet, when I used the console version and
> deleted the custom color theme, it stopped giving me error messages, but
> it still won't start up without th
On Sun, 19 Dec 2004, Bugra Cakir wrote:
> I want to create a matrix in Python. For example 3x4 how can i
> create this? thanks
Hi Bugra,
Just for reference, here's the relevant FAQ about how to do matrices in
Python:
http://python.org/doc/faq/programming.html#how-do-i-create-a-multidimension
On Mon, 20 Dec 2004, Jacob S. wrote:
> 1) Delete .idlerc directory
> 2) Uninstall and reinstall python2.4
Hi Jacob,
Ok, so there was probably something really screwy with the stuff in
.idlerc.
Can you send me a tarball or zip of it in private email? I just want to
make sure that the issue t
On Sun, 26 Dec 2004, Jacob S. wrote:
> > The only thing that's missing is that this script can't handle paths
> > like ~/dir/junkthis
>
> I believe you're looking for os.path.expanduser("~/dir/junkthis")
>
> BTW, trashcan IS a module level variable because it's defined at the module
> level. Why
[Jacob]
> > BTW, trashcan IS a module level variable because it's defined at the
> > module level. Why it says it's local is beyond me.
[Danny]
> Ah, you must be running into the global/local gotcha.
[long rambling text cut]
Wait, wait. Forget everything I said. *grin* I should have read the
On Fri, 31 Dec 2004, kumar s wrote:
> I am trying to parse BLAST output (Basic Local Alignment Search Tool,
> size around more than 250 KB ).
[xml text cut]
Hi Kumar,
Just as a side note: have you looked at Biopython yet?
http://biopython.org/
I mention this because Biopython comes wit
On Fri, 31 Dec 2004, kumar s wrote:
> http://www.python.org/doc/lib/dom-example.html
>
> Frankly it looked more complex. could I request you to explain your
> pseudocode. It is confusing when you say call a function within another
> function.
Hi Kumar,
A question, though: can you try to expla
On Thu, 30 Dec 2004, Anna Ravenscroft wrote:
> Anna Martelli Ravenscroft
> 42, 2 children (13 and 11) live with their dad
> Married this July to the martelli-bot (we read The Zen of Python at our
> wedding!). We currently live in Bologna, Italy.
Hi Anna,
Congratulations! Say hi to Alex for m
On Sat, 1 Jan 2005, Jacob S. wrote:
> funct = {'Add Virt':addvirt,'Remove Virt':remvirt,'More
> Stuff':more,"Extras":extra}
> def addvirt():
> pass
> def remvirt():
> pass
> def more():
> pass
Hi Jacob,
Quick gotcha note: the definition of the 'funct' dictionary has to g
On Sun, 2 Jan 2005, Dave S wrote:
> My matrix 'self.data' consists of a list of 110 items, each item is a
> dictionary of 250 keys, each key holds two lists, one of four items, one
> of 12 items.
Hi Dave,
Hmmm... what kind of data is being copied here? Python's data structures
are desigined f
On Mon, 3 Jan 2005, Brian van den Broek wrote:
> >> (Aside: one nonobvious example where copying can be avoided is in
> >> Conway's Game of Life: when we calculate what cells live and die in
> >> the next generation, we can actually use the 'Command' design pattern
> >> to avoid making a tempor
On Tue, 4 Jan 2005, Michael Powe wrote:
> def parseFile(inFile) :
> import re
> bSpace = re.compile("^ ")
> multiSpace = re.compile(r"\s\s+")
> nbsp = re.compile(r" ")
> HTMLRegEx =
>
> re.compile(r"(<|<)/?((!--.*--)|(STYLE.*STYLE)|(P|BR|b|STRONG))/?(>|>)
> ",re.I)
>
>
> > Just as a warning, none of what I'm going to code here is original at
> > all: I'm rehashing a main idea off of a paper called "Using the Game
> > of Life to Introduce Freshman Students to the Power and Elegance of
> > Design Patterns":
> >
> > http://portal.acm.org/citation.cfm?id=103529
On Wed, 5 Jan 2005, Kooser, Ara S wrote:
>They picked a project to model the flow of smallpox in a city and
> surroundings areas. So I saw the game of life and thought maybe they
> could modify it for use as a smallpox model.
Hi Ara,
Oh! My apologies for not posting the file as a comple
On Thu, 6 Jan 2005, Fred Lionetti wrote:
> I'm working on creating an installer for my program using install
> shield, and I'd like to know how one can automatically determine if
> Python 2.3 is installed on a linux machine, and where site-packages is
> located (so that I can install my own file
On Thu, 6 Jan 2005, Alan Gauld wrote:
> > I'm _very_ used to using C style constants (preprocessor #define
> > directives) or C++ const keyword style, for a variety of reasons.
> >
> > I've yet to see anything covering 'how to work around the lack of
> > constants in Python'...can anyone point m
> > I'm working on creating an installer for my program using install
> > shield, and I'd like to know how one can automatically determine if
> > Python 2.3 is installed on a linux machine
Hi Fred,
Sorry about ignoring parts of your question! Unix has default places for
putting binaries like P
On Thu, 6 Jan 2005, Vincent Wan wrote:
> I wrote a program to repeatedly:
> a: print a list of integers eg 0 0 0 0 0 0 0 0 0 0
> b: change each integer in the list to 1 with a .05% chance
>
> I run the program and over itterations more 1's appear as they should.
>
> However, the chan
On Thu, 6 Jan 2005, Vincent Wan wrote:
> On Jan 6, 2005, at 12:59 PM, Danny Yoo wrote:
> > Can you show us a snippet of the file output? I'm not immediately
> > seeing anything particular with your debugging output statements:
>
> > Like the computer, I don't
On Fri, 7 Jan 2005, Mark Kels wrote:
> I started to read the following code (I will start working on it when
> this problem is fixed) and it looks OK while I read it. But for some
> reason it doesn't work...
Hi Mark,
Ok, let's take a look at the error message:
> Traceback (most recent call
> But now I have much weirder problem...
> I got this error:
>
> C:\>maillist.py
> File "C:\maillist.py", line 84
>
>^
> SyntaxError: invalid syntax
>
> And the weird thing is that the program has only 83 lines... For some
> re
On Sat, 8 Jan 2005, Jeffrey Thomas Peery wrote:
> I wasn't able to get the IDLE started in windows XP. I had it working then I
> upgraded to 2.4, then it didn't work so I switched back to 2.3, still didn't
> work so I'm back to 2.4. I did some looking around and I was able to get
> the IDLE sta
> >To help you out. You need some sort of error checking to be sure that
> >within your given range you won't get something like a math domain
> >error.
> >
> >
> Yes, I thought that:
> try:
> #function
> exception:
> pass
Hi Ismael,
Python's keyword for exception handling is 'except'
On Tue, 11 Jan 2005, Liam Clarke wrote:
> > > (Why can't a non-static method comparison be called from a static
> > > reference? What does that mean anyway?
> >
> > Er... What was your code like? (before and after correcting
> > the error)
Hi Liam,
It's actually easier to see the reas
On Mon, 10 Jan 2005, R. Alan Monroe wrote:
> I don't have the code here at home, but today I tried my first
> experiments in Tkinter. I set up a button that fired off a function to
> resize a rectangle in a canvas, with a for loop. Only problem is that
> the screen isn't repainted in all the ste
On Tue, 11 Jan 2005, Mark Kels wrote:
> How can I send SQL querys to a MySQL database with a python-CGI program ?
Hi Mark,
You'll want to grab a "Python DB API" module for MySQL. The best one I've
seen for MySQL is 'MySQLdb':
http://sourceforge.net/projects/mysql-python
and you should
On Tue, 11 Jan 2005, kevin parks wrote:
> but as always you may notice a wrinkle some items have many times
> (here 6) indicated:
>
> Item_3TAPE_139:4110:41
> Item_3TAPE_1410:4711:19
> Item_3TAPE_1511:2111:55
> Item_3TAPE_1611:58
On Wed, 12 Jan 2005, Gopinath V, ASDC Chennai wrote:
> > I'm a Novice in python.can u tell me if there is a frontend available
> > .if yes where can i download it from
Hello Gopinath,
Can you explain what you mean by "frontend"? The word "frontend" suffers
from being too generic to be able
>> Can you explain what you mean by "frontend"? The word "frontend"
>> suffers from being too generic to be able to tell what you mean.
> I meant a GUI like Microsofts Visual Basic
[Keeping Tutor@python.org in CC. Please use Reply-to-all in replies, so
that we can keep the conversation on l
On Wed, 12 Jan 2005, Barnaby Scott wrote:
> I was wondering how you can get an instance of a class to change itself
> into something else (given certain circumstances), but doing so from
> within a method. So:
>
> class Damson:
> def __str__(self):
> return 'damson'
>
> def dry(s
On Wed, 12 Jan 2005, Vincent Wan wrote:
> running my program gives me "TypeError: len() of unsized object"
Hi Vincent:
Ah! Whenever you see something like this, check to see where
reassignments to the variable occur: it's possible that one of the
assignments isn't doing what you think it's d
On Wed, 12 Jan 2005, Orri Ganel wrote:
> >>> stuff = [[0,'sdfsd','wrtew'], [1, 'rht','erterg']]
> >>> stuff
> [[0, 'sdfsd', 'wrtew'], [1, 'rht', 'erterg']]
> >>> print [stuff[i][0] for i in range(len(stuff))]
> [0, 1]
Hi Orri,
An alternative way to write this is:
###
print [row[0] for row
On Wed, 12 Jan 2005, Marilyn Davis wrote:
> When stuff was read from the exim socket, it was stored in a tempfile,
> so that I could release the exim process, then I lseek to the front of
> the tempfile and have it handy. I see from all my debugging and logging
> that the file descriptor for th
> Just double checking something: are you dealing with threads?
Hi Marilyn,
Argh, that was a dumb question. Pretend I didn't ask it that way.
*grin*
I meant to ask:
How do you deal with threads? Is the temporary file a global resource
that the threads all touch? If so, have you done any sy
On Wed, 12 Jan 2005, Marilyn Davis wrote:
> I was looking at my use of file objects and file descriptors and I wrote
> this sample program and was very surprised by the result -- which makes
> me think there's something here that I don't understand. Where did my
> 'ooo' go?
>
> #! /usr/bin/env p
> > def flatten(a):
> >if not isinstance(a,(tuple,list)): return [a]
> >if len(a)==0: return []
> >return flatten(a[0])+flatten(a[1:])
> The only problem with this if it is to big or to deeply nested then it
> will overflow the stack?
Yes, it can overflow in its current incarnation.
On Thu, 13 Jan 2005, kumar s wrote:
> My list looks like this: List name = probe_pairs
> Name=AFFX-BioB-5_at
> Cell1=96 369 N control AFFX-BioB-5_at
> Cell2=96 370 N control AFFX-BioB-5_at
> Cell3=441 3 N control AFFX-BioB-5_at
> Cell4=441 4
On Thu, 13 Jan 2005, Guillermo Fernandez Castellanos wrote:
> Is there any "table" frame that I am unaware of?
Hi Guillermo,
There are some recipes for making a Tkinter table widget; here's one:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52266
There's a Tkinter wiki page t
On Thu, 13 Jan 2005, joeri honnef wrote:
> I'm trying to communicate between Python and Java and using os.popen().
> But thing dont work...The Java program reads strings from stdin and the
> python program just writes to stdout.
Hi Joeri,
You may want to look at:
http://www.python.org/do
On Fri, 14 Jan 2005, Chad Crabtree wrote:
> I have created a file-like object out of a triple quoted string. I was
> wondering if there is a better way to implement readline than what I
> have below? It just doesn't seem like a very good way to do this.
>
> class _macroString(object):
> def
On Fri, 14 Jan 2005, Terry Carroll wrote:
> > class _macroString(object):
> > def __init__(self,s):
> > self.macro=s
> > self.list=self.macro.split("\n")
> > for n,v in enumerate(self.list):
> > self.list[n]=v+'\n'
>
> Is this for loop a safe technique, wh
On Fri, 14 Jan 2005, kumar s wrote:
> >>>for i in range(len(what)):
> ele = split(what[i],'\t')
> cor1 = ele[0]
> for k in range(len(my_report)):
> cols = split(my_report[k],'\t')
> cor = cols[0]
> if cor1 == cor:
>
> I have only wrapped my lock around file-descriptor creations. Should I
> wrap it around closings too? Or the whole open -> close transaction?
> It sounds like error-prone work to do the latter. What am I missing?
Hi Marilyn,
Can you send a link to the source code to the Tutor list? I'm ge
> > >>> stuff = [[0,'sdfsd','wrtew'], [1, 'rht','erterg']]
> > >>> stuff
> > [[0, 'sdfsd', 'wrtew'], [1, 'rht', 'erterg']]
> > >>> print [stuff[i][0] for i in range(len(stuff))]
> > [0, 1]
> >
> > An alternative way to write this is:
> >
> > ###
> > print [row[0] for row in stuff]
> > ###
> >
Hi Marilyn,
[Long program comments ahead. Please forgive me if some of the comments
are overbearing; I'm trying to get over a cold, and I'm very grumpy.
*grin*]
Some comments on the code follow. I'll be focusing on:
> http://www.maildance.com/python/doorman/py_daemon.py
One of the import
On Tue, 18 Jan 2005, Danny Yoo wrote:
> In fact, as far as I can tell, none of the Spawn() threads are
> communicating with each other. As long as your threads are working
> independently of each other --- and as long as they are not writing to
> global variables --- you do no
On Tue, 18 Jan 2005, Marilyn Davis wrote:
> while 1:
> if log.level & log.calls:
> log.it("fd%d:py_daemon.py: Waiting ...", self.descriptor)
> try:
> client_socket, client_addr = self.server_socket.accept()
> except (EOF
On Wed, 19 Jan 2005, Max Noel wrote:
> I've just spent the last few hours learning how to use the DOM XML
> API (to be more precise, the one that's in PyXML), instead of revising
> for my exams :p. My conclusion so far: it sucks (and so does SAX because
> I can't see a way to use it for OO
On Wed, 19 Jan 2005, Ertl, John wrote:
> I am using the subprocess.Popen from 2.4. I can launch a job from
> python and the output from the job goes to the screen but now I would
> like to have the output go to a file. I could do the crude
>
> subprocess.Popen("dtg | cat > job.out", shell=True
On Wed, 19 Jan 2005, Marilyn Davis wrote:
> class Exim:
> def __init__(self):
> self.fdin = None
> self.err_flush = []
> self.stdout, self.stdin, self.stderr = popen2.popen3('%s -t' %
> MAILER)
> self.fdin = self.stdin.fileno()
> self.fdout = s
On Thu, 20 Jan 2005, Bill Mill wrote:
> There is no "standard" implementation of lisp, so sockets and os access
> all vary by implementation. Furthermore, the docs are sketchy and hard
> to read with all of the lisps I've tried.
Hi Liam,
Scheme is a recent dialect of Lisp that seems to be well
On Fri, 21 Jan 2005, Kent Johnson wrote:
> I think this will work:
> in foo/__init__.py put
> from Bar import Bar
> from Baz import Baz
>
> or whatever variations of this you like.
>
> Any names defined in the package __init__.py are available to other code
> as package attribute.
Hi Max,
For
On Fri, 21 Jan 2005, Guillermo Fernandez Castellanos wrote:
> I'm trying to take a list and find all the unique combinations of that
> list.
>
> I mean:
> if I enter (1,2,3,4,5) and I watn combinations of 3, I want to find:
> (1,2,3) but then not (2,1,3), (3,1,2),...
> (1,2,4)
> (1,2,5)
> (2,3,5
On Fri, 21 Jan 2005, Danny Yoo wrote:
> > I mean:
> > if I enter (1,2,3,4,5) and I watn combinations of 3, I want to find:
> > (1,2,3) but then not (2,1,3), (3,1,2),...
> > (1,2,4)
> > (1,2,5)
> > (2,3,5)
> > (3,4,5)
>
>
> There is a clean rec
On Sat, 22 Jan 2005, Kent Johnson wrote:
> Jay Loden wrote:
> > One simple solution is to do:
> >
> > fle = open(file)
> > contents = file.readlines()
> > file.close()
> > print contents[x] #or store this in a variable, whatever
>
> That is the simplest solution. If your file gets bigger and yo
On Sat, 22 Jan 2005, Ali Polatel wrote:
>I want to ask you something that I am really curious about.
>Can I design web-pages with python or use py files to write html?
Hi Ali,
Almost every programming language allows us to write strings into files,
so from an academic standpoint, 'yes
On Sun, 23 Jan 2005, Scott W wrote:
> I've got to shell out from my python code to execute a command, but
> _must_ set the environment at the same time (or prior to execution).
>
> I saw some comments about setting os.environ[], but
> didn't seem to be seeing this work in subsequent calls using
On Tue, 25 Jan 2005, Scott Melnyk wrote:
> I have an file in the form shown at the end (please forgive any
> wrapparounds due to the width of the screen here- the lines starting
> with ENS end with the e-12 or what have you on same line.)
>
> What I would like is to generate an output file of
On Tue, 25 Jan 2005, Gilbert Tsang wrote:
> Hey you Python coders out there:
>
> Being a Python newbie, I have this question while trying to write a
> script to process lines from a text file line-by-line:
>
> #!/usr/bin/python
> fd = open( "test.txt" )
> content = fd.readline()
> while (content
> There's nothing that really technically prevents us from doing an
> assignment as an expression, but Python's language designer decided that
> it encouraged a style of programming that made code harder to maintain.
> By making it a statement, it removes the possiblity of making a mistake
> like
On Tue, 25 Jan 2005, Max Noel wrote:
> >> My data set the below is taken from is over 2.4 gb so speed and
> >> memory considerations come into play.
> >>
> >> Are sets more effective than lists for this?
> >
> > Sets or dictionaries make the act of "lookup" of a key fairly cheap.
> > In the two-
On Wed, 26 Jan 2005, Bill Kranec wrote:
> There has been alot of talk on this list about using list comprehensions
> lately, and this could be one of those useful places. While I don't
> have time to experiment with real code, I would suggest changing your
> function to look like:
>
> steps = [
> > There has been alot of talk on this list about using list comprehensions
> > lately, and this could be one of those useful places. While I don't
> > have time to experiment with real code, I would suggest changing your
> > function to look like:
> >
> > steps = [ min_x + i*delta_x for i in r
On Wed, 26 Jan 2005, Srinivas Iyyer wrote:
> I have a list with 4 columns and column1 elements are unique. I wanted
> to extract unique elements in column3 and and place the other elements
> of the column along with unique elements in column 4 as a tab delim
> text.
>
> Table:
>
> col1col2
On Wed, 26 Jan 2005, Tony Giunta wrote:
> This is something I've been trying to figure out for some time. Is
> there a way in Python to take a string [say something from a raw_input]
> and make that string a variable name?
Hi Tony,
Conceptually, yes: you can collect all those on-the-fly vari
On Thu, 27 Jan 2005, Miles Stevenson wrote:
> I'm trying to practice safe coding techniques. I just want to make sure
> that a user can't supply a massive argument to my script and cause
> trouble. I'm just trying only accept about 256 bytes:
>
> buffer(sys.argv[1], 0, 256)
^^
Hi Miles,
On Fri, 28 Jan 2005, Rodney Butler wrote:
> I have written a script that is designed to load when you start your
> xbox, it gets a list of your music playlists then lets you select which
> one to load, shuffle and play, then the script exits. What I need is
> for the script to automatically sel
On Sat, 29 Jan 2005, Srinivas Iyyer wrote:
> I have bunch of coordinates for various vectors.
>
> small vecs:
>
> name cord. Xcord. Y Sector no.
> smvec175 1001aa
> smvec225 50 1aa
> smvec3135 1551ab
>
> large vecs:
On Sat, 29 Jan 2005, Roy wrote:
> I am learning about python exception handling. I am reading "Python in a
> Nutshell". In the chapter of exception handling, it says: Note that the
> try/finally form is distinct from the try/except form: a try statement
> cannot have both except and finally clau
On Mon, 31 Jan 2005, [ISO-8859-1] André Roberge wrote:
> >/ I have a "robot" that can do some actions like "move()" and
> />/ "turn_left()". I can program this robot using python like this:
> />/
> />/ .def move_and_turn():
> [snip]//
> />/ The question I have is: how do I do this with an
On Sun, 30 Jan 2005, kumar s wrote:
> I have a bunch of files where the first column is always the same. I
> want to collect all those files, extract the second columns by file wise
> and write the first column, followed by the other columns(extracted from
> files) next to each other.
Hi Kumar
> Now that I am reading many files at once, I wanted, to
> have a tab delim file op that looks like this:
>
> My_coors Int_file 1 Int_file2
> IntFile3
> 01:26 34 235
> 245.45
> 04:42 342.4452.445.5
> 02:56 45.4
On Sun, 30 Jan 2005, Glen wrote:
> As a Python/Tkinter newbie, I thought I was getting on ok...
> then I hit this problem.
>
> I have a canvas (c1)
> A group of objects are drawn on c1 and given a tag
> c1.addtag_all('group_A')
> Another group of objects are drawn, I wish to tag these 'gr
On Mon, 31 Jan 2005, Danny Yoo wrote:
> I think that getting this right will take some more work. Here's a
> definition of a function called find_withouttag():
[Code cut]
Oh! Never mind; this can be a lot simpler. According to the "Gotchas"
section of:
http://t
> Now I've just got to work out how to tag a list of id's... There
> doesn't seem to be a way to tag a known id, it has to be tagged by
> reference from an id above or below which seems odd!
Hi Glen,
Have you tried the addtag_withtag() method? It looks like it should be
able to do what you're
Hi Michiyo,
Ok, let's take a look at the code.
> i=open("file 1") #value data
> o=open("file 2") #look-up file
> l=open("result", 'w')#result
We strongly recommend renaming these names to ones that aren't single
characters.
It's difficult to tell here what 'i', 'o', and 'l' mean, outside of
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