Dave Opstad wrote:
Is it just an implementation limitation that attributes cannot be
assigned to instances of internal types?
No, not "just". Some types have a fixed set of attributes by design,
whereas others allow addition of attributes. There are several reasons
for this design. Performance is
"Steve Holden" <[EMAIL PROTECTED]> escribió en el mensaje
news:[EMAIL PROTECTED]
[Discussion on Python slices and the off-by-one issue
deleted]
> While this may be an interesting philosophical (or should that be
> philological) discussion, since Python has worked this way for donkey's
> year
Skip Montanaro wrote:
Paul> I'd like to have a function (or other callable object) that
Paul> returns 0, 1, 2, etc. on repeated calls.
...
Paul> There should never be any possibility of any number getting
Paul> returned twice, or getting skipped over, even if f is being called
Nick Craig-Wood <[EMAIL PROTECTED]> writes:
> I believe futex is the thing you want for a modern linux. Not
> very portable though.
That's really cool, but I don't see how it can be a pure userspace
operation if the futex has a timeout. The kernel must need to keep
track of the timeouts. Howeve
[EMAIL PROTECTED] writes:
> Every user of thsi big directory works on big studies regarding oil
> fields. Knowing the amount of data (and number of files) we have to
> deal with (produced by simulators, visualization tools, and so on)
> and knowing that users are usually lazy in doing clean up of
This is spectacular! :)
Is there a way to make it to work from environments (such as emacs)
where stdin is special?
Michele Simionato
--
http://mail.python.org/mailman/listinfo/python-list
Mike Moum wrote:
Hi,
I'm a civil engineer who also doubles as chief programmer for technical
applications at my company. Most of our software is written in Visual
Basic because our VP in charge of I.T. likes to have "consistency", and
at the moment we're a Microsoft shop. He has assigned me the
F. Petitjean wrote:
[...]
*I* wrote the original post. and am pretty sure it is not faked. And I
run it before posting to be sure not to say anything wrong. it is a kind
of relief to learn that computers in 2005 (even Python powered) are
humor-impaired and follow the « ref manual » every time even
Paul Rubin wrote:
> Antoon Pardon <[EMAIL PROTECTED]> writes:
> > I'm not sure that this would be an acceptable approach. I did the man
> > semop and it indicates this is part of system V IPC. This makes me
> > fear that semaphores will use file descriptors or other resources
> > that are only av
alex goldman wrote:
Daniel Silva wrote:
At any rate, FOLD must fold.
I personally think GOTO was unduly criticized by Dijkstra. With the benefit
of hindsight, we can see that giving up GOTO in favor of other primitives
failed to solve the decades-old software crisis.
What software crisis? Knuth (
Aahz wrote:
In article <[EMAIL PROTECTED]>,
=?iso-8859-1?Q?Fran=E7ois?= Pinard <[EMAIL PROTECTED]> wrote:
[Sunnan]
[...] for Pythons ideal of having one canonical, explicit way to
program.
No doubt it once was true, but I guess this ideal has been abandoned a
few years ago.
My honest feeling is th
Tim Peters <[EMAIL PROTECTED]> writes:
> The GIL is your friend here:
>
> import itertools
> f = itertools.count().next
Thanks, I was hoping something like this would work but was not sure I
could rely on it.
> A similar thing can be done with xrange. But either way sucks if you
> call
Paul> I'd like to have a function (or other callable object) that
Paul> returns 0, 1, 2, etc. on repeated calls.
...
Paul> There should never be any possibility of any number getting
Paul> returned twice, or getting skipped over, even if f is being called
Paul> from multipl
Diez B. Roggisch:
> On second thoughts, a metaclass _might_ help here - but it would be
rather
> elaborate: look in the baseclasses for properties that have getters
and
> setters of the same name as some methods in the current class, and
replace
> them, or create a new property with them (I'm not
[Paul Rubin]
> I'd like to have a function (or other callable object) that returns
> 0, 1, 2, etc. on repeated calls. That is:
>
>print f() # prints 0
>print f() # prints 1
>print f() # prints 2
># etc.
>
> There should never be any possibility of any number getting returned
Joal Heagney wrote:
Steve Holden wrote:
I suppose this would be far too easy to understand, then:
pr =['Guess my name', 'Wrong, try again', 'Last chance']
for p in pr:
name = raw_input(p+": ")
if name == "Ben":
print "You're right!"
break
else:
print "Loser: no more tries for you"
reg
[Aahz]
> =?iso-8859-1?Q?Fran=E7ois?= Pinard <[EMAIL PROTECTED]> wrote:
> >No doubt it once was true, but I guess this ideal has been
> >abandoned a few years ago. My honest feeling is that it would be a
> >mis-representation of Python, assertng today that this is still one
> >of the Python's ide
I'd like to have a function (or other callable object) that returns
0, 1, 2, etc. on repeated calls. That is:
print f() # prints 0
print f() # prints 1
print f() # prints 2
# etc.
There should never be any possibility of any number getting returned
twice, or getting skipped
[Aahz]
>> "The joy of coding Python should be in seeing short, concise, readable
>> classes that express a lot of action in a small amount of clear code --
>> not in reams of trivial code that bores the reader to death." --GvR
[Sunnan]
> Can anyone please point me to the text that quote was taken
Have you looked at this? A paper about adding asynchronous exceptions
to Python.
http://www.cs.williams.edu/~freund/papers/02-lwl2.ps
--
http://mail.python.org/mailman/listinfo/python-list
Hum, maybe my question was too specific. What I would really like to
know is what is the best way to implement a Python application with a
pluggable architecture. In particular, I would like to use wxPython and
have plug ins automatically register themselves with the GUI by adding
themselves to
Steve Holden wrote:
Joal Heagney wrote:
Bengt Richter wrote:
On Fri, 01 Apr 2005 07:46:41 GMT, Joal Heagney <[EMAIL PROTECTED]>
wrote:
Oh goddammmni. I seem to be doing this a lot today. Look below
for the extra addition to the code I posted.
Joal Heagney wrote:
Here's my contribution anyc
Joal was right. It is a bit beyond me. But I appreciate your response.
--
http://mail.python.org/mailman/listinfo/python-list
Thanks for your reply.
--
http://mail.python.org/mailman/listinfo/python-list
Thanks for your input.
--
http://mail.python.org/mailman/listinfo/python-list
Thanks for your help.
It is much appreciated.
--
http://mail.python.org/mailman/listinfo/python-list
On Fri, 1 Apr 2005 17:33:59 -0800, "Todd_Calhoun" <[EMAIL PROTECTED]> wrote:
>I'm trying to learn about text processing in Python, and I'm trying to
>tackle what should be a simple task.
>
>I have long text files of books with a citation between each paragraph,
Most text files aren't long enough
James Stroud wrote:
bob == (carol = 2):
if bob = (bob or carol):
bob == 4
But no one could figure out what bob was supposed to equal anyway.
Wouldn't bob equal the boolean result of the expression (carol = 2)?
--
http://mail.python.org/mailman/listinfo/python-list
Sunnan wrote:
Terry Reedy wrote:
Gee, what about 0.0 < a < 1.0 < b < 2.0? I see both as synthesized
multinary operators, but your are right in that this combination does
act differently than a+b+c.
Is < really multinary in python? It looks binary to me, just like +.
(a+b)+c
(((0.0 < a) < 1.0) <
Terry Reedy wrote:
Gee, what about 0.0 < a < 1.0 < b < 2.0? I see both as synthesized
multinary operators, but your are right in that this combination does act
differently than a+b+c.
Is < really multinary in python? It looks binary to me, just like +.
(a+b)+c
(((0.0 < a) < 1.0) < b ) < 2.0
Sunn
Aahz wrote:
"The joy of coding Python should be in seeing short, concise, readable
classes that express a lot of action in a small amount of clear code --
not in reams of trivial code that bores the reader to death." --GvR
Can anyone please point me to the text that quote was taken from? I
tried
My apologies you did indeed use writelines correctly ;)
dohhh!
I had a gut reaction to this.
Py>f = ['hij\n','efg\n','abc\n']
Py> for i in f:
... if i.startswith('a'):
... i == ''
Py> f
['hij\n', 'efg\n', 'abc\n']
Notice that it does not modify the list in any way.
You are trying to loo
On 1 Apr 2005 20:00:13 -0500, [EMAIL PROTECTED] (Aahz) wrote:
>In article <[EMAIL PROTECTED]>,
>=?iso-8859-1?Q?Fran=E7ois?= Pinard <[EMAIL PROTECTED]> wrote:
>>[Sunnan]
>>>
>>> [...] for Pythons ideal of having one canonical, explicit way to
>>> program.
>>
>>No doubt it once was true, but I gues
hello,
If you run the Mainboard monitor, speedfan, here is
an ActivePython script to force automatic fan control.
http://www.almico.com/speedfan.php
It's a great example of how clean the WinApi interface is
in ActivePython. The script sets focus to the checkbox of
interest and toggles the
I have a program named "octave" (a Matlab clone). It runs in a terminal,
types a prompt and waits for the user to type something. If I try
# Run octave.
oct = subprocess.Popen("octave", stdin=subprocess.PIPE)
# Run an octave called "startup".
oct.communicate("startup")
# Change directory inside o
Strings have many methods that are worth learning.
If you haven't already discovered dir(str) try it.
Also I am not sure if you were just typing in some pseudocode, but your
use of writelines is incorrect.
help(file.writelines)
Help on built-in function writelines:
writelines(...)
writelines(s
On Fri, 01 Apr 2005 16:46:14 -0500, Jeremy Bowers <[EMAIL PROTECTED]>
wrote:
>On Fri, 01 Apr 2005 19:56:55 +, Ron_Adam wrote:
>
>> On Fri, 01 Apr 2005 13:47:06 -0500, Jeremy Bowers <[EMAIL PROTECTED]>
>> wrote:
>>>Is this an April Fools gag? If so, it's not a very good one as it's quite
>>>in
"Raymond Hettinger" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> More important than the percentage is the clarity of the resulting code
> and the
> avoidance of continous reinvention of workarounds.
>
> Separating tool features into a basic and an advanced version is common
>
Hi,
I'm a civil engineer who also doubles as chief programmer for technical
applications at my company. Most of our software is written in Visual
Basic because our VP in charge of I.T. likes to have "consistency", and
at the moment we're a Microsoft shop. He has assigned me the task of
developi
On Sat, 02 Apr 2005 02:02:31 +0200, andrea_gavana wrote:
> Hello Jeremy & NG,
> Every user of thsi big directory works on big studies regarding oil fields.
> Knowing the amount of data (and number of files) we have to deal with
> (produced
> by simulators, visualization tools, and so on) and know
Close:
> if line[:4] == 'Bill':
. ^^
> line == ' '
>
--
http://mail.python.org/mailman/listinfo/python-list
The good ol' DiveInto says:
http://diveintopython.org/power_of_introspection/and_or.html#d0e9975
http://aspn.activestate.com/ASPN/Python/Cookbook/Recipe/52310
Diez B. Roggisch wrote:
> praba kar wrote:
>
> > Dear All,
> > I am new to Python. I want to know how to
> > work with ternary opera
Daniel Silva <[EMAIL PROTECTED]> writes:
[...]
> So now FOLD. This is actually the one we've always hated most,
> because, apart from a few examples involving + or *, almost every time
> we see a FOLD call with a non-trivial function argument, we have to
> grab pen and paper and imagine the *res
I'm trying to learn about text processing in Python, and I'm trying to
tackle what should be a simple task.
I have long text files of books with a citation between each paragraph,
which might be like "Bill D. Smith, History through the Ages, p.5".
So, I need to search for every line that starts
In article <[EMAIL PROTECTED]>,
Peter Hansen <[EMAIL PROTECTED]> wrote:
> As for Roy's comments: I use a small internally
> developed driver script which uses os.walk to find
> all the files matching tests/*_unit.py or tests/story*.py
> in all subfolders of the project, and which runs them
> in s
Terry Reedy wrote:
> "Carl Banks" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> >> A unary operator has one operand; a binary operator has two
operands;
> >> ternary operator has three operands. Python has none built-in,
> >
> > Not so fast, my friend. What about the expression
In article <[EMAIL PROTECTED]>,
=?iso-8859-1?Q?Fran=E7ois?= Pinard <[EMAIL PROTECTED]> wrote:
>[Sunnan]
>>
>> [...] for Pythons ideal of having one canonical, explicit way to
>> program.
>
>No doubt it once was true, but I guess this ideal has been abandoned a
>few years ago.
>
>My honest feeling
Thanks to everyone who responded!! I guess I have to study my regular
expressions a little more closely.
--
http://mail.python.org/mailman/listinfo/python-list
Stelios> I'm collecting small testlets to benchmark it, discover
Stelios> bottlenecks and improve it. They should be small and not use
Stelios> any crazy modules. Only [sys, os, itertools, thread,
Stelios> threading, math, random] for now.
Take a look around for Marc Andre Lembu
Raymond Hettinger wrote:
BTW, the above code simplifies to:
from py.test import raises
assert a == b
raises(Error, func, args)
This is pretty, but I *want* my tests to be contained
in separate functions or methods. The trivial amount
of extra overhead that unittest requires fits with
the way I wan
[Peter Hansen]
> unittest can really be rather light. Most of our
> test cases are variations on the following, with
> primarily application-specific code added rather than
> boilerplate or other unittest-related stuff:
>
> import unittest
>
> class TestCase(unittest.TestCase):
> def test01(s
> I assumed that all standard sequence consumers (including list, of course)
would intercept
> the StopIteration of a sequence given them in the form of a generator
expression, so your
> lyst example would have an analogue for other sequence consumers as well,
right?
> I.e., there's not a hidden li
> >Taken together, these six attributes/methods could cover many wished for
> >features for the 10% of the cases where a regular dictionary doesn't provide
the
> >best solution.
> You think as much as 10% ?
Rounded up from 9.6 ;-)
More important than the percentage is the clarity of the resultin
Joal Heagney wrote:
Bengt Richter wrote:
On Fri, 01 Apr 2005 07:46:41 GMT, Joal Heagney <[EMAIL PROTECTED]>
wrote:
Oh goddammmni. I seem to be doing this a lot today. Look below
for the extra addition to the code I posted.
Joal Heagney wrote:
Here's my contribution anycase:
count = 0
# Get
Traceback (most recent call last):
File "", line 19, in ?
IOError: [Errno 2] No such file or directory: ''
(in both Windows 2.4 and Cygwin 2.4)
regards
Steve
TSO wrote:
Hi there,
I've recently tried to translate some Perl code into Python - code is below.
Is there a more Pythonic form?
Also, is
Hello Jeremy & NG,
>Yes, clearer, though I still don't know what you're *doing* with that data
:-)
Every user of thsi big directory works on big studies regarding oil fields.
Knowing the amount of data (and number of files) we have to deal with (produced
by simulators, visualization tools, and so
Javier Bezos wrote:
"Myles Strous" <[EMAIL PROTECTED]> escribió en el mensaje
news:[EMAIL PROTECTED]
satisfy some handy properties, the first of which being:
l[:n] + l[n:] = l
I don't think l[:5] + l[5:] = l is a handy property
and to me is clearly counterintuitive. Further,
It can be quite useful
In article <[EMAIL PROTECTED]>,
"Carl Banks" <[EMAIL PROTECTED]> wrote:
> Terry Reedy wrote:
> > "praba kar" <[EMAIL PROTECTED]> wrote in message
> > news:[EMAIL PROTECTED]
> > > Dear All,
> > >I am new to Python. I want to know how to
> > > work with ternary operator in Python. I cannot
>
"F. Petitjean" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
Le Fri, 1 Apr 2005 13:39:47 -0500, Terry Reedy a écrit :
>> Reread the ref manual on chained comparison operators.
>And see the date of the post :-)
Ditto for the reply ;-)
TJR
--
http://mail.python.org/mailman/li
On Fri, 01 Apr 2005 23:04:42 GMT, "Raymond Hettinger" <[EMAIL PROTECTED]> wrote:
>[Bengt Richter]
>> I wonder if a dict with a general override hook for hashing all keys would be
>useful.
>> E.g., a dict.__keyhash__ that would take key as arg and default as now
>returning key.__hash__()
>> but th
[Mr6 wrote]
> It's a weird thing. But if I run print "\a" from idle it does not work.
> But if I save as a file, say, sound.py. Then run that with python
> sound.py it does.
>
> Why is that?
The IDLE stdout/stderr handling is not invoking a system bell when it
sees '\a'. I suppose that one coul
On Sat, 02 Apr 2005 01:00:34 +0200, andrea_gavana wrote:
> Hello Jeremy & NG,
> ...
> I hope to have been clearer this time...
>
> I really welcome all your suggestions.
Yes, clearer, though I still don't know what you're *doing* with that data :-)
Here's an idea to sort of come at the problem
Peter Hansen <[EMAIL PROTECTED]> wrote:
> unittest can really be rather light. Most of our
> test cases are variations on the following, with
> primarily application-specific code added rather than
> boilerplate or other unittest-related stuff:
>
> import unittest
>
> class TestCase(unittest.Tes
"Carl Banks" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
>> A unary operator has one operand; a binary operator has two operands;
>> ternary operator has three operands. Python has none built-in,
>
> Not so fast, my friend. What about the expression "0.0 < a < 1.0"?
Gee, what a
On Fri, 01 Apr 2005 18:01:49 -0500, Brian Beck wrote:
> py> from itertools import groupby
> py> [''.join(g) for k, g in groupby(' test ing ', lambda x: x.isspace())]
> [' ', 'test', ' ', 'ing', ' ']
>
> I tried replacing the lambda thing with an attrgetter, but apparently my
> understanding of
[Brian Beck]>
> py> from itertools import groupby
> py> [''.join(g) for k, g in groupby(' test ing ', lambda x: x.isspace())]
> [' ', 'test', ' ', 'ing', ' ']
Brilliant solution!
That leads to a better understanding of groupby as a tool for identifying
transitions without consuming them.
> I
Colin J. Williams wrote:
unittest seems rather heavy. I don't like mixing tests with
documentation, it gives the whole thing a cluttered look.
unittest can really be rather light. Most of our
test cases are variations on the following, with
primarily application-specific code added rather than
b
Le Fri, 01 Apr 2005 17:42:30 -0500, Jeremy Bowers a écrit :
> On Fri, 01 Apr 2005 22:01:25 +, F. Petitjean wrote:
>
>> Le Fri, 1 Apr 2005 13:39:47 -0500, Terry Reedy a écrit :
>>> This is equivalent to '(that is it) and (it is not it)' which is clearly
>>> false.
>>>
False # What ?
>>
"Paul L. Du Bois" <[EMAIL PROTECTED]> writes:
> Has anyone written a Queue.Queue replacement that avoids busy-waiting?
> It doesn't matter if it uses os-specific APIs (eg
> WaitForMultipleObjects). I did some googling around and haven't found
> anything so far.
This isn't a Queue.Queue replaceme
[Bengt Richter]
> I wonder if a dict with a general override hook for hashing all keys would be
useful.
> E.g., a dict.__keyhash__ that would take key as arg and default as now
returning key.__hash__()
> but that you could override. Seems like this could potentially be more
efficient than key wrap
RickMuller wrote:
There's a chance I was instead thinking of something in the re module,
but I also spent some time there without luck. Could someone point me
to the right function, if it exists?
The re solution Jeremy Bowers is what you want. Here's another (probably
much slower) way for fun (wit
Hello Jeremy & NG,
>* Poke around in the Windows API for a function that does what you want,
>and hope it can do it faster due to being in the kernel.
I could try it, but I think I have to explain a little bit more my problem.
>If you post more information about how you are using this data, I ca
Bengt Richter wrote:
On Fri, 01 Apr 2005 02:06:07 -0500, Steve Holden <[EMAIL PROTECTED]> wrote:
Trent Mick wrote:
[Baza wrote]
Am I right in thinking that >>>print "\a" should sound the system, 'bell'?
It works on the shell on Windows for me (WinXP).
Trent
Interesting. From a Cygwin bash shell
Grig Gheorghiu wrote:
In my mind, practicing TDD is what matters most. Which framework you
choose is a function of your actual needs. The fact that there are 3 of
them doesn't really bother me. I think it's better to have a choice
from a small number of frameworks rather than have no choice or have
On Fri, 01 Apr 2005 22:01:25 +, F. Petitjean wrote:
> Le Fri, 1 Apr 2005 13:39:47 -0500, Terry Reedy a Ãcrit :
>> This is equivalent to '(that is it) and (it is not it)' which is clearly
>> false.
>>
>>> False # What ?
>>
>> Reread the ref manual on chained comparison operators.
>
> And s
On Fri, 01 Apr 2005 14:20:51 -0800, RickMuller wrote:
> I'm trying to split a string into pieces on whitespace, but I want to
> save the whitespace characters rather than discarding them.
>
> For example, I want to split the string '12' into ['1','','2'].
> I was certain that there was a
I'm trying to split a string into pieces on whitespace, but I want to
save the whitespace characters rather than discarding them.
For example, I want to split the string '12' into ['1','','2'].
I was certain that there was a way to do this using the standard string
functions, but I just sp
Hi All--
Jeremy Bowers wrote:
> Your ass is your identity function.
>
> Python 2.3.5 (#1, Mar 3 2005, 17:32:12)
> [GCC 3.4.3 (Gentoo Linux 3.4.3, ssp-3.4.3-0, pie-8.7.6.6)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> 25
> 25
> >>> (_ | _)
> 25
> >>>
On Fri, 01 Apr 2005 18:52:00 GMT, "Raymond Hettinger" <[EMAIL PROTECTED]> wrote:
>[Ville Vainio]
>> I need a dict (well, it would be optimal anyway) class that stores the
>> keys as strings without coercing the case to upper or lower, but still
>> provides fast lookup (i.e. uses hash table).
>
>
>
Le Fri, 1 Apr 2005 13:39:47 -0500, Terry Reedy a écrit :
>
> "F. Petitjean" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>
> iterable = range(10)
> it = iter(iterable)
> that = iter(it)
> that is it
>> True# Good!
> that is it is not it
>
> This is equiv
alex goldman wrote:
Daniel Silva wrote:
At any rate, FOLD must fold.
I personally think GOTO was unduly criticized by Dijkstra. With the benefit
of hindsight, we can see that giving up GOTO in favor of other primitives
failed to solve the decades-old software crisis.
The fault of goto in imperati
Jeremy Bowers wrote:
On Fri, 01 Apr 2005 16:52:52 -0500, Jeremy Bowers wrote:
Oops, sorry, some "send later" messages I thought were gone got sent.
Sorry. Didn't mean to revive dead threads.
At least it happened on April Fool's. Or should I say:
@aprilfools
def happened:
at least
--
http://mail
On Fri, 01 Apr 2005 16:52:52 -0500, Jeremy Bowers wrote:
Oops, sorry, some "send later" messages I thought were gone got sent.
Sorry. Didn't mean to revive dead threads.
--
http://mail.python.org/mailman/listinfo/python-list
On Fri, 13 Aug 2004 16:49:53 +1000, Anthony Baxter wrote:
> The
> people who hate pie-decorators post a _lot_ - most people seem to either
> not care, or else post once or twice and then disappear.
I just posted on another mailing list about how posting the same message,
over and over, is fundamen
On Thu, 31 Mar 2005 13:38:34 +0200, andrea.gavana wrote:
> Hello NG,
>
> in my application, I use os.walk() to walk on a BIG directory. I
> need
> to retrieve the files, in each sub-directory, that are owned by a
> particular user. Noting that I am on Windows (2000 or XP), this is wha
On Fri, 01 Apr 2005 16:02:53 -0500, Gabriel Cooper wrote:
> Ron_Adam wrote:
>
>>To me ":=" could mean to create a copy of an object... or should it
>>be "=:" ?
>>
>>Or how about ":=)" to mean is equal and ":=(" to mean it's not.
>>
>>Then there is ";=)", to indicate 'True', and ':=O' to indicate
On Sat, 12 Mar 2005 17:06:17 -0800,
'@'.join([..join(['fred','dixon']),..join(['gmail','com'])]) wrote:
I'd also suggest
validInput = "ABCDEFGHIJKL" # and there are more clever ways to do this,
# but this will do
myInput = raw_input(" ".join(validInput) + "?")
if len(
On Fri, 01 Apr 2005 19:56:55 +, Ron_Adam wrote:
> On Fri, 01 Apr 2005 13:47:06 -0500, Jeremy Bowers <[EMAIL PROTECTED]>
> wrote:
>>Is this an April Fools gag? If so, it's not a very good one as it's quite
>>in line with the sort of question I've seen many times before. "I have
>>a hammer, how
Terry Reedy wrote:
> "praba kar" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > Dear All,
> >I am new to Python. I want to know how to
> > work with ternary operator in Python. I cannot
> > find any ternary operator in Python. So Kindly
> > clear my doubt regarding this
>
max(01)* wrote:
Peter Hansen wrote:
Not required except for performance reasons. If the .pyc
files don't exist, the .py files are recompiled and the
resulting bytecode is simply held in memory and not cached
and the next startup will recompile all over again.
but the other files *are* compiled, ri
"coffeebug" <[EMAIL PROTECTED]> writes:
> I cannot import "numarray" and I cannot import "numeric" using python
> 2.3.3
numarray and Numeric are separate modules available at
http://numpy.sourceforge.net/
If you're doing anything numerical in Python, you'll want them :-)
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|>|\/|<
/-
[EMAIL PROTECTED] writes:
> Hello,
> What's the problem with this code? I get the following error message:
>
> File "test.py", line 26, in test
> print tbl[wi][bi]
> IndexError: index must be either an int or a sequence
>
> ---code snippet
>
> from Numeric import *
> tbl = zeros((32, 16))
Ivan Van Laningham wrote:
Tim Peters sayeth, "Premature Optimization is the Root of All Evil."
And he is not kidding.
And just to forestall another long thread about who
actually said that originally, it was really Mark
Twain, quoting Churchill. Tim just added a .
-Peter
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Ron_Adam wrote:
I've used boolean opperations to do it.
result = (v == value) * first + (v != value) * second
Same as:
if v == value: result = first else: result = second
No, it isn't, because it isn't short circuiting. If first or second had
side effects, then the two would not be equiv
On Fri, 01 Apr 2005 16:34:32 GMT, "Raymond Hettinger" <[EMAIL PROTECTED]> wrote:
>[Peter Otten]
>> a StopIteration raised in a generator expression
>> silently terminates that generator:
>>
>> >>> def stop(): raise StopIteration
>> ...
>> >>> list(i for i in range(10) if i < 5 or stop())
>> [0, 1,
You might find this usefull specifically the stuff on subclassing
built-in types.
http://www.python.org/2.2/descrintro.html
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Ron_Adam wrote:
To me ":=" could mean to create a copy of an object... or should it
be "=:" ?
Or how about ":=)" to mean is equal and ":=(" to mean it's not.
Then there is ";=)", to indicate 'True', and ':=O' to indicate 'False'
Not to mention "(_ | _)" for asserts!
--
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Is it just an implementation limitation that attributes cannot be
assigned to instances of internal types?
---
>>> x = 4
>>> type(x)
>>> class Test(int):
... pass
...
>>> y = Test(4)
>>> type(y)
>>> y.someattr = 10
>>> x.someattr = 10
Traceback (most recent call last)
GzipFile has a parameter 'fileobj' which you could use.
GzipFile( [filename[, mode[, compresslevel[, fileobj)
For iteratng over the file
how about :
line = oldfileobj.readline()
while line !="":
oldmd5.update(line)
line = oldfileobj.readline()
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On Fri, 1 Apr 2005 12:15:35 -0800, James Stroud <[EMAIL PROTECTED]>
wrote:
>Is anybody else bothered by those stupid pascal-like ":=" assignment
>operators?
>
>Maybe, for the sake of adding more variety to the world, wiki should come up
>with a new assignment operator, like "==". I like that one
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