> I ended up changing my approach so that it won't require appending to
> the list, but it's good to know anyway because I'm sure it will come up
> in the future. I'm sort of surprised there isn't a prepend() method for
> lists, but I'm sure there's a reason.
Hi Jay,
The interface of a data stru
> well, I would have said "apply(zip, (l1, l2, l3, ...))" but apply has
> been deprecated in 2.3.
Hi Sean,
Sorry for straying away from the original poster's question, but do you
know why apply() is being deprecated? This is new to me! ... ok, I see
some discussion on it:
http://mail.python.
On Wed, 23 Mar 2005, Igor Riabtchuk wrote:
> I posted the wrong code before. The code is:
>
> from Tkinter import *
>
> D={a:"tom", b:"dick", c:"harry"}
>
> text.bind('', self.Conv)
>
> def Conv(self,event):
> if D.has_key(event.keysym):
> str=D[event.keysym]
> self.text.insert(END
-- Forwarded message --
Date: Wed, 18 Feb 2004 16:44:49 -0800
From: Joshua Banks <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Cc: Danny Yoo <[EMAIL PROTECTED]>
Subject: Re: [Tutor] Getting "file sizes"
On Wednesday 18 February 2004 01:22 pm, you wrote:
>
On Fri, 25 Mar 2005, Vicki Stanfield wrote:
> I finally gave up and used MySQLdb to connect to my database. It
> connects okay, and returns data, but now I have a new question. I use
> the code below to print the data returned from my query, but I would
> like to make labels at the top of the co
Hi everyone,
My apologies about the repeated message; I just got an old message from
last year, and didn't look closely enough to see that it was a repeat from
last year! The mail queue of some folks is really ancient; I wonder why
that bounced to me today. Odd.
Anyway, sorry about that!
On Fri, 25 Mar 2005, Srinivas Iyyer wrote:
> NameState
> DrewVirginia
> NoelMaryland
> NikiVirginia
> Adams Maryland
> JoseFlorida
> Monica Virginia
> Andrews Maryland
>
>
> I would like to have my ouput like this:
>
> Virginia : Drew,Niki,Monica
> Maryland: Noel,Adams
> jrlen balane wrote:
> > basically, i'm going to create a list with 96 members but with only
> > one value:
> >
> > list1[1,1,1,1...,1]
> >
> > is there a shorter way to write this one???
Hi Jrlen Balana,
I wanted to ask: why do we want to make a list of 96 members, with the
same value? This s
> Yikes, that sounds pretty hairy. Maybe this kind of thing is not as
> straight forward as anticipated. Why HTML you say? Well I've been
> intrigued by Dashboard, which will be in the next OSX release. It allows
> you to create "widgets" which are essentially little html pages that do
> things.
On Sun, 27 Mar 2005, Orri Ganel wrote:
> While I do not have a pressing need to hash a list, I am curious as to
> why, if lists are unhashable, there is a __hash__() method in the list
> class, which also does not work on lists, but results in a 'TypeError:
> list objects are unhashable'. What'
On Sun, 27 Mar 2005, Orri Ganel wrote:
> So, any class that has 'rich comparison methods' defined is unhashable?
> What gives? (See '[Tutor] unhashable objects')
Hi Orri,
If we change what it means for two objects to be equal, hashing won't work
in a nice way until we also make hashing take e
On Tue, 29 Mar 2005, Diana Hawksworth wrote:
> Is it possible for me to make a command do multiple things instead of 1?
> For instance, I have a button that allows me to "submit" some user input
> (that is, show it in a window), but I also want it to count the number
> of times that submit button
> *Almost* all ints are fixed points for the hashing function in the
> sense that hash(some_int) == some_int. Almost all as:
>
> >>> hash(-1)
> -2
>
> Any idea why -1 is the sole exception?
[warning: beginners, skip this. Completely inconsequential CPython detail
ahead.]
Hi Brian,
Yeah, I reme
On Wed, 30 Mar 2005, Kevin wrote:
> I was wondering, can you make a program the uses alot of classes do the
> exact same thing with out useing classes?
Hi Kevin,
Yes. We can even do a lot of object oriented programming without classes,
although it might be slightly painful.
You asked an ea
On Wed, 30 Mar 2005, Marcus Goldfish wrote:
> I need to implement a FIFO with a fixed maximum capacity.
Hi Marcus,
Out of curiosity, why do you require a first-in-first-out queue with a
maximum capacity?
> Would limiting the max capacity of the FIFO improve performance by
> allowing one to p
> My script is still not working properly, I am obviously missing a
> statement somewhere, the script return:
>
> >>>
> Enter a number: 25
> You are just a bit too high, try again
> The End
> >>>
>
> The script exits and don't give another try, could you enlight me in
> this one, thanks
Hi John,
> ps -- as for the need for a circular buffer vs. FIFO: I think my dsp
> background pushed me toward the CB. My app involves data acquisition
> for extended periods of time. I can't grow the FIFO infinitely, but it
> is no big deal if a few samples get overwritten. Does this make sense?
Hi Mar
> > I have this dictionnary :
> >
> > a={'partition': u'/export/diskH1/home_evol/ricquebo',
> > 'rsmFirstname': u'Fran\xe7ois',
> > 'rsmLastname': u'Ricquebourg',
> > 'size': u'8161222.0',
> > 'size_max': '1'}
> >
> > and I'd like to *serialize* it with pickle and that the output format
> > w
> Are you trying to send it off to someone else as a part of an XML
> document? If you are including some byte string into an XML document,
> you can encode those bytes as base64:
>
> ##
> >>> bytes = 'Fran\xe7ois'
> >>> encodedBytes = bytes.encode('base64')
> >>> encodedBytes
> 'RnJhbudvaXM=\
> I'm a cell biologist that is learning python. I've been following Alan
> Gauld's tutorial online and I've hit a wall.
>
> I'm typing
>
> class Spam:
> """A meat for combining with other foods
>
> It can be used with other foods to make interesting meals.
> It comes with lots
On Wed, 6 Apr 2005, Kent Johnson wrote:
> s = 'Hi "Python Tutors" please help'
> s.split()
> >
> > ['Hi', '"Python', 'Tutors"', 'please', 'help']
> >
> >
> > I wish it would leave the stuff in quotes in tact:
> >
> > ['Hi', '"Python Tutors"', 'please', 'help']
>
> You can do this easily
> I wonder if anyone can help me with an RE. I also wonder if there is an
> RE mailing list anywhere - I haven't managed to find one.
Hi Debbie,
I haven't found one either. There appear to be a lot of good resources
here:
http://dmoz.org/Computers/Programming/Languages/Regular_Expressions
On Thu, 7 Apr 2005, Sean Steeg wrote:
> So please, do this list and Python in general a favor and visit (and
> support through your code) the new and (hopefully) improved
> UselessPython.
>
> Thank you for your time.
> Sean
> http://www.uselesspython.com
It looks great; I'll try submitting some
On Thu, 7 Apr 2005, Luke Jordan wrote:
> I am looking for a little clarification of how exactly this would work.
>
> 1. How do I associate a function to a dict key?
Hi Luke,
We're probably already familiar of values like numbers and strings, and
how to give them names with variables:
##
> > I'm not sure if this is appropriate for Marilyn's purposes though, but
> > I thought I might just toss it out. *grin*
>
> Thank you Danny. Very interesting. Both approaches are perfect for
> me.
>
> Is there a reason to prefer one over the other? Is one faster? I
> compiled my regular expr
On Fri, 8 Apr 2005 [EMAIL PROTECTED] wrote:
> I've noticed that after 20 or 30 compile/link/execute runs, IDLE
> crashes. This seems to happen pretty consistently. At the time, I'm not
> doing anything that might cause it to crash. Does this happen to anyone
> else? What causes it? Is it just a
On Sat, 9 Apr 2005, j2 wrote:
> Well, doesn't fly for me, because I can't install it. Can you offer any
> help on the below?
Hi J2,
This is a slightly specialized question for tutor; you might be able to
get some better help by asking on the db-sig mailing list:
http://mail.python.org/mail
-- Forwarded message --
Date: Fri, 8 Apr 2005 22:03:58 EDT
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: newb problem running the translator
I will try to make this quick. I am a newb to python, and programming at
that, but i am realy interested. I have been looking
> > Foo: What's it good for?
>
> Foo and Bar are popular names used in examples. They don't mean
> anything. For example to show how to define a function I might write
>
> def foo():
>print 'Hello'
>
> I just use foo to avoid having to think of a meaningful name.
Hi Joseph,
I sometimes get l
> The requested URL /hp/alan.gauld/ was not found on this server.
>
> Additionally, a 404 Not Found error was encountered while trying to use
> an ErrorDocument to handle the request.
Hi Alexis,
Odd! It might be that Alan's hosting service is doing something bonkers;
perhaps the service's virt
-- Forwarded message --
Date: Tue, 12 Apr 2005 17:16:18 -0300
From: Alexis <[EMAIL PROTECTED]>
To: Danny Yoo <[EMAIL PROTECTED]>
Subject: Re: [Tutor] Python starting books
Hi people thanks to all of you for the suggestions, I am currently
reading some programming
On Tue, 12 Apr 2005, Marcus Goldfish wrote:
> Are there guidelines for when properties should be used vs. instance
> variables?
Hi Marcus,
In Python, it's easy to modify things so that things that look like
instance variable access are automatically shunted off to do programatic
stuff.
In Py
On Wed, 13 Apr 2005, Tony Meyer wrote:
> > I am very new to programming and I have an assignment to have a
> > raw_input string that is inputted by the user and then is printed
> > backwards. Can anyone help me? I can get it to print regular but
> > backwards in not working.
>
> I guess that I
-- Forwarded message --
Date: Tue, 12 Apr 2005 22:37:44 -0500
From: Jim and Laura Ahl <[EMAIL PROTECTED]>
To: Danny Yoo <[EMAIL PROTECTED]>
Subject: Re: [Tutor] Python backwards program
I have read about loops, strings, tuples. I am taking this class on distance
e
Hello Jim,
> I have read about loops, strings, tuples.
Can you show us an example of a loop? Can you show us the last program
that you've written?
It sounds like you've done a lot of reading. The problem with learning
how to program is that you can't just read it: you actually have to write
> > Hi people thanks to all of you for the suggestions, I am currently
> > reading some programming books but it seems as if i can't findn a
> > suitable one to get me started the way i want, i mean not only
> > learning the basics but getting prepared for more complex programming,
>
> I would say
-- Forwarded message --
Date: Wed, 13 Apr 2005 17:12:55 +0200
From: Feziwe Mpondo <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: help
how to run a programm after you have typed in the commands
___
Tutor maillist - Tutor@python.or
-- Forwarded message --
Date: Wed, 13 Apr 2005 09:01:16 -0500
From: Jim and Laura Ahl <[EMAIL PROTECTED]>
To: Danny Yoo <[EMAIL PROTECTED]>
Subject: Re: [Tutor] Python backwards program (fwd)
Danny
I cannot write a program that gives me a double letter.
I can get
> I cannot write a program that gives me a double letter.
> I can get each letter separate or pieces or parts of the word
Hi Jim,
[Please don't reply just to me: use the Reply-to-All feature on your email
program. This allows your reply to be seen by the rest of us here. I
want to make sure yo
[Hi Mark, I'm not the original poster of the question. I've forwarded
your reply back to tutor as well as the original poster. Thanks!]
-- Forwarded message --
Date: Wed, 13 Apr 2005 14:56:18 -0400
From: "Leeds, Mark" <[EMAIL PROTECTED]>
To: D
> I have wrote 3 other programs in the class.
Hi Jim,
[cut]
Ok, that's where I have to stop you for a moment.
We're not going to do your homework problems; please understand that we
actually don't care if you get your homework done. And I really hope that
people don't just start blurting stu
cuse to say things like that. I will try to
better answer your questions, without making such stupid mistakes. And I
hope that folks on the list will forgive me for the bad temper in my last
emails.
Sincerely,
Danny Yoo
___
Tutor maillist - Tutor@pyth
-- Forwarded message --
Date: Thu, 14 Apr 2005 00:41:40 -0500
From: Jim and Laura Ahl <[EMAIL PROTECTED]>
To: Danny Yoo <[EMAIL PROTECTED]>
Subject: Re: [Tutor] Python backwards program
I thought you were on me a bit but I am so frustrated at this point. My
inst
> Does the 2.2 python have the ability to do this?
Hi Jim,
Python 2.2 is actually a bit old; you may want to update the version of
Python on your system to Python 2.4. You can find it here:
http://www.python.org/2.4/
A lot of the approaches you were trying earlier used features that were
> xv on the machines and PIL uses xv to display. I have looked at
> PythonMagick but I could not even get past installing it. It does not have
> a setup.py and uses boost. I am hoping for a more straightforward Python
> way.
Hi John,
You may want to try PyGame:
http://www.pygame.org/
> What I want to know is this: what are other specific situations where a
> recursive algorithm would be better or easier to program than an
> iterative one?
Hello,
Programs that have to deal with data often have an internal structure that
mimics that data. A program that deals with lists looks
[Jim, when you reply, please send to [EMAIL PROTECTED] Don't just send
your reply only to me. Use your email client's Reply-To-All feature.]
[Jim]
> > The following gives me the last letter of the string.
> >
> > backwords=raw_input("enter number or string:")
> > print backwords[-1]
On Fri, 15 Apr 2005 [EMAIL PROTECTED] wrote:
> Can anyone recommend a good data structures text that is not too heavy
> on math and theory?
>
> I need something very practical, with many short examples. I'm trying to
> learn to program 2D games like checkers, card games, etc.
The book "Game Pro
On Fri, 15 Apr 2005, Gooch, John wrote:
> Is there a way to create multiple __init__ routines in a Python Class?
Hi John,
In general, Python doesn't support "overloading". Overloading wouldn't
interact well at all with functions that can take a variable number of
arguments.
That being said,
On Sun, 17 Apr 2005, james middendorff wrote:
> I was wondering if there was a tutorial and or module that would help me
> create a program to use a parallel port to turn on/off a device in
> linux? I have searched but cannot find a tutorial on a good way to do
> this. The whole project would be
> > Just curious. Googling for 'python "dis module" convert "another
> > language" ' only got two hits. So maybe no one is trying it? I was
> > just daydreaming about a native python compiler, and wondered how
> > feasible it would be.
>
> You might be interested in Pyrex and Psyco:
> http://www.co
On Sun, 17 Apr 2005, gerardo arnaez wrote:
> I have finished a coumadin dose calcalutor
> but want to have it work via a web interface.
>
> The base code is here
> http://mung.net/~dude/coumadinAll.html
>
> but not sure what would be the next step in getting this working
> on the web.
Hi Gerar
On Sun, 17 Apr 2005, Alberto Troiano wrote:
> [emvamp.gif] Gaucho
> Hey everyone I have Python 2.3 installed and when I try to import Tkinter
> I get the following error> >>>import Tkinter Traceback (most recent call
> last): File "", line 1, in ? File
> "/usr/local/lib/python2.3/lib-tk/Tkinter
On Mon, 18 Apr 2005, Williams, Thomas wrote:
> Does anyone know how to prevent this error from occurring: IOError:
> [Errno socket error] (10060, 'Operation timed out').
Hi Tom,
You can adjust the amount of time that sockets will wait, by using
socket.setdefaulttimeout():
http://www.pytho
On Tue, 19 Apr 2005, Alberto Troiano wrote:
> Sorry I have Mysql-python 1.20
> that's the one I can not install
> I said MySQLdb because I'm still using it for windows
> I can't install mysql-python it gives me the error i described
>
> With mysql-python does the sintax change???What should
On Tue, 19 Apr 2005, Ertl, John wrote:
> I have figured out a bit more. I can get the binary values from the
> service but I think they come back as a single string. How do I read
> that into an array?
Hi John,
> The code below will read the first number into the array and print it
> out bu
On Tue, 19 Apr 2005 [EMAIL PROTECTED] wrote:
> hi all, while recently trying to insert some data into the following
> table:
>
> # stores unique course definitions
> CREATE TABLE adminCourses (
> ID TINYINT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
> Code CHAR(6),
> Title VARCHAR(55),
> Unit
> > Is there a convention for obfuscating database passwords?
Hi David,
Most people run passwords through some sort of hashing function. That is,
databases almost never contain passwords in the clear, but instead store
the hashes of those passwords.
For example, I am almost positive that Amaz
-- Forwarded message --
Date: Tue, 19 Apr 2005 19:47:20 -0500
From: David Driver <[EMAIL PROTECTED]>
To: Danny Yoo <[EMAIL PROTECTED]>
Subject: Re: [Tutor] How to obfuscate a database password.
I am not necessarily talking about passwords for users but about the
pass
> I am not necessarily talking about passwords for users but about the
> password that is used for connecting to the database.
Hi David,
Ah, ok, I misunderstood the problem then. Hmmm... I agree with the others
who have said that this is difficult. *grin* Eventually, you'll need to
decrypt wh
> >>I couldn't print the exact error because it's a lot of pages that says
> >>mostly the same
Hi Alberto,
No, that's precisely the kind of wrong kind of attitude toward error
messages that's making this debugging much harder than it should be.
You may think that those error messages are most
On Wed, 20 Apr 2005, Alberto Troiano wrote:
> You're so right and I apologize for my mistake
>
> Do you or anybody knows where the error.log for this kind o things is?
>
> or how can I capture the output in a file???Cause is so damn
> long that I barely see the 10% of all the things
On Wed, 20 Apr 2005, Prasad Kotipalli wrote:
> I am a newbie to python, I have been working with getopt for parsing
> command line options, but i came to know that optparse module is more
> effecient. Can anyone suggest some ideas why it is powerful than
> getopt.
Hi Prasad,
According to:
[Kent]
> Strange. This example works for me on Win2K with Python 2.4.
[Ray]
> > Hoping that someone can help me here. I have been reading about
> > gnuplot and it's plotting functionality, so i decided to install this:
> > I downloaded the gnuplot windows function and then installed the
> > gnu
> Yeah, it looks like Joshua Pollack ran into this issue three years ago:
>
> http://mail.python.org/pipermail/tutor/2002-September/017579.html
>
> I'm going through the archive now to see if he was able to resolve the
> problem ok.
Hi Ray,
Yikes, it looks like someone never really answered
> In Perl, you can perl -c somehardtoreadperlprogram.pl that will just
> check the syntax. The above problem would have been caught in Perl since
> I always use strict. Is there a command line option in Python to do a
> Pychecker-like syntax check?
Hi Mike,
Unfortunately, no, because there are s
On Fri, 22 Apr 2005, Danny Yoo wrote:
>
> > In Perl, you can perl -c somehardtoreadperlprogram.pl that will just
> > check the syntax. The above problem would have been caught in Perl
> > since I always use strict. Is there a command line option in Python to
> > do a
On Fri, 22 Apr 2005, Gautam Saha wrote:
> A newbie here..I was wondering if python can help me to track the URL in
> browser (IE6+, FF, Mozilla) location bar.
>
> What I want is to get each URL from the the browser location bar, as
> user clicks from links to link in the web (or types an URL) an
On Sat, 23 Apr 2005, Tom Tucker wrote:
> Good evening! Does Python have a print function similar to Perl
> format output (example below)?
Hi Tom,
Not exactly, but we can get something close, by using the String
Formatting operators.
http://www.python.org/doc/current/lib/typesseq-strings.
> I do remain a bit surprised that there seems to be no way to implement
> what I naively thought would be the obvious solution -- to remove an
> inherited method from the instance's dictionary.
Hi Brian,
If we're trying to do this, we probably don't want to "inherit" from a
parent. A subclas
On Sun, 24 Apr 2005, Ali Polatel wrote:
> How can i write a simple bandwidth tester with Python?
Hi Ali,
A really rough sketch would be:
## Really rough pseudocode
def bandwidthTest():
Record the current time (use time.time())
Choose some resource that you can download, and downl
On Wed, 27 Apr 2005, Tom Tucker wrote:
> Hello all! I am trying to pass a variable to my re.compile string (see
> broken example below). Is something like this possible? Thanks!
>
> regexstring = 'H\sb'
> textstring = 'BLAH blah'
> match = re.compile((%s) % (regexstring)) # ?
Hi Tom,
Ah, I t
On Thu, 28 Apr 2005, Jeff Peery wrote:
> hello, I recently upgraded my wxpython to 2.5, now I get an error
> message when I try to edit a dialog in the boa constructor that says :
> collection body not in init, body, fin form - anyone have an idea what
> this means? thanks.
Hi Jeff,
This sound
> The best I've been able to do is pretty obvious:-
> def perms (t):
> if len (t) == 0:
> return []
> else:
> return [[x] + perms ([y for y in t if y <> x]) for x in t]
>
>Needless to say, it doesn't work. It does produce a list of
> lists but they are so horribly n
[Side note: try to just send messages to either tutor@python.org, or
[EMAIL PROTECTED], but not both.]
> Someone suggested the use of CRON (I'm working over Linux) but how can I
> built a program to which I can pass an argument???
>
> I mean in CRON I will have to put one task for each user
On Tue, 3 May 2005, Alberto Troiano wrote:
> In answer to Matt the cameras push the photos via ftp at my server at 1
> photo every 3 seconds
Hi Alberto,
Just as another note: the folks here have no idea who you mean by Matt.
I do know that you mean Matt from [EMAIL PROTECTED], but the folks on
> Hello, I get an error message from py2exe that it can't find a module
> ntpath.py. I pasted the error message below:
>
> Traceback (most recent call last):
> File "wxApp1.py", line 4, in ?
> File "wx\__init__.pyc", line 42, in ?
> File "wx\_core.pyc", line 4, in ?
> File "wx\_core_.pyc"
On Tue, 3 May 2005, Max Noel wrote:
> > I believe that cron has a resolution of a minute, so now it doesn't
> > sound that cron is so viable. But how about writing a program that
> > just continues to run as a "daemon" service in the background? A
> > simple example is something like:
>
>
On Tue, 3 May 2005, Jules Bravo wrote:
> I'm trying to create a program that can recreate the unix pipe. So
> basically I need to be able to take something like "ls *.py | du | wc"
> and be able to run it just like unix would, doing a wordcount of the du
> of all files that end with .py. My ques
On Wed, 4 May 2005 [EMAIL PROTECTED] wrote:
> i need help with my wmconnect service. it keeps on losing connection
> once logged on-line every 5 or 10 minutes. i have to continuosly keep
> trying to make a connetion.
Hello Keisha,
I hope you don't mind me asking, but how is this related to P
> > Anyone have a gentle hint, or pointer to another 'beginner' tutorial
> > to regular expressions?
> >
> > Thanks! I dont want to get stuck here in the riddles!
Yeah, there is also a great regular expression HOWTO here:
http://www.amk.ca/python/howto/regex/
Best of wishes!
On Fri, 6 May 2005, Evi Wyns wrote:
> I know this is probably too soon still. I am busy with classes at the
> moment and I am having a difficult time understanding the use of
> classes... do you have a good tutorial or good explanation for me how to
> understand classes more better?
Hi Evi,
Yo
On Wed, 4 May 2005, Ali Polatel wrote:
> Dear friends,
> Is there a way to import C,C++ or Asm modules to python scripts?
> If yes how?
Hi Ali,
Python can be "extended" to use external libraries, as long as we can call
them from C. There's a tutorial for C programmers here:
h
> On May 7, 2005, at 13:17, John Carmona wrote:
>
> > Hi to everybody reading this thread, can anybody point me to the URL
> > where I can find these challenges. Many thanks
Hi John,
By the way, just to make sure you know, the mailing list here has an
archive here:
http://mail.python.org/
On Wed, 11 May 2005, John Carmona wrote:
> MyText = open('The_text.txt','r').read()
>
> In the above line could someone tell me what the 'r' stand for.
Hi John,
You may want to look at:
http://www.python.org/doc/lib/built-in-funcs.html#l2h-25
If you're still unsure about what 'r' means,
On Wed, 11 May 2005, Tom Tucker wrote:
> Good morning! Does Python have a sort function thats supports a delimiter?
Hi Tom,
Not directly, but it's actually not too difficult to get this working.
Python's sort() function can take in an optional "comparison" function, so
we can do something lik
On Wed, 11 May 2005, Bernard Lebel wrote:
> Let say I have several class instances in a list, and these class
> instances have an attribute named "value", whose value is an integer.
>
> I would like to know if it is possible to loop over the list of
> instances to change their "value" attribute,
> It is possible to abuse map() to do what you're trying to do, using the
> setattr() function:
>
> ## Pseudocode
> map(lambda instance: setattr(instance, 'value', 42))
> ##
Hi Bernard,
Grrr... I did label that as Pseudocode, but that doesn't excuse me from
not actually trying to make t
-- Forwarded message --
Date: Wed, 11 May 2005 14:29:58 -0400
From: Bernard Lebel <[EMAIL PROTECTED]>
To: Danny Yoo <[EMAIL PROTECTED]>
Subject: Re: [Tutor] map() and lambda to change class instance attribute
Hi Danny,
Thanks for the answer.
I have to confess th
> I have to confess that I already use map(), or should I say abuse, for
> this, although it is the first time I consider using lambdas. Up until
> now I always used map() to perform a looped call on a function that
> would change the attribute value, as shown in Mark Lutz & David Ascher's
> Learn
On Wed, 11 May 2005, Bernard Lebel wrote:
> Thanks a lot for the advice. I will put that in practice.
>
> The blasphemous example is on page 227 of the second edition, under
> Mapping Functions Over Sequences.
Hi Bernard,
Ah, thank you. I'll start the Inquisition shortly. *grin*
___
On Wed, 11 May 2005, Charmaine Chia wrote:
> My computer only has the following versions installed: Python 2.1.3+,
> 2.2.3+ and 2.3.4. I have changed my PYTHONPATH to use look for
> different site-packages (I've tried version 1.5 and 2.2 -- 1.5 was
> attempted in case the scripts were written i
> On Wed, 11 May 2005, Danny Yoo wrote:
>
> > map(lambda x: x^2, [1, 2, 3])
> >
> > [x^2 for x in [1, 2, 3]]
> > then we're really saying something like this:
> >
> > [1, 2, 3]
> > | | |
> > |
On Wed, 11 May 2005, Jeffrey Rice wrote:
> I am having a little problem with how to pipe a variable's contents to an
> external command. Essentially, I have a variable that contains the
> contents of a variable that I want to feed to a series of external commands
> (clamav and spamassassin).
On Wed, 11 May 2005, Michael Cole wrote:
> What I noticed while testing the program is that the ball moves fairly
> slowly, I tried incrementing the ball's speed (dx and dy) but it still
> seemed to move pretty slow no matter how much I increased its speed. I
> went ahead and played out the game
-- Forwarded message --
Date: Thu, 12 May 2005 11:31:57 -0600
From: Jeffrey Rice <[EMAIL PROTECTED]>
To: Danny Yoo <[EMAIL PROTECTED]>
Subject: Re: [Tutor] Pipe variable to external command
At 12:16 AM 5/12/2005, Danny Yoo wrote:
>##
> >>> c
On Thu, 12 May 2005, William O'Higgins wrote:
> I am trying to learn Python by translating some of my Perl scripts. One
> thing that is eluding me is assigning the results of system calls to
> variables. Here's what I want to do in Perl:
>
> $isxrunning = `ps -C startx | grep "startx"`;
>
On Thu, 12 May 2005, Zenten wrote:
> Ok, I'm writing a program using tkinter, that has a bit of data entry in
> it. It would be useful to have a window with various tabs to select
> between different "pages" in my entry. However, I can't figure out how
> to do this part, after looking through
> http://www.ruby-talk.org/cgi-bin/scat.rb/ruby/ruby-talk/68786
> As a work around, I end up calling popen3 like this:
>
> Open3.popen3 ("/some/command/to/run ; echo $? 1>&2") { ... }
>
> That ensures the exit code from /some/command/to/run will be the last
> line of the standard error stream from
On Thu, 12 May 2005, Richard gelling wrote:
> fileToSearchFor = raw_input( "Type in the file name you want to search
> for: ")
>
> if fileToSearchFor in fileList:
> print "%s was found" % fileToSearchFor
> else:
> print "%s was not found" % fileToSearchFor
>
> Could someone explain to me
201 - 300 of 2125 matches
Mail list logo
