* Steve Holden:
Alf P. Steinbach wrote:
* Stephen Hansen:
[...]
I've heard that before, and have no idea why, nor any real interest in
solving it: I don't want to read cpl via Usenet, and prefer to read it
as a mailing list. Somewhere between Gmail->python.org->python.org
&l
* Steve Holden:
Alf P. Steinbach wrote:
* Steve Holden:
Alf P. Steinbach wrote:
* Stephen Hansen:
[...]
I've heard that before, and have no idea why, nor any real interest in
solving it: I don't want to read cpl via Usenet, and prefer to read it
as a mailing list. Somewhere bet
* David Robinow:
On Tue, Feb 9, 2010 at 5:10 PM, Simon Brunning wrote:
On 9 February 2010 16:29, Robert Kern wrote:
On 2010-02-09 09:37 AM, Daniel Fetchinson wrote:
If the code base stabilizes in a production version after losing the
alphas and betas they would be a great addition to the std
I know 3 Python Easter Eggs,
from __future__ import braces
import this
help( "antigravity" )
Are there more?
Cheers,
- Alf
--
http://mail.python.org/mailman/listinfo/python-list
* Steven D'Aprano:
On Tue, 09 Feb 2010 21:04:08 +0100, Alf P. Steinbach wrote:
You thought you cold do a bit of ad hominem attack.
That phrase you keep using, "ad hominem"... it doesn't mean what you seem
to think it means.
An ad hominem attack is not when somebody
* Ben Finney:
Steven D'Aprano writes:
An ad hominem attack is not when somebody makes a criticism of you
personally. It is when somebody says something along the lines of
"Don't pay any attention to Alf, he doesn't know what he's talking
about, he's a ".
In other words, a criticism of the pe
* Tim Chase:
Larry Hudson wrote:
But a minor rearrangement is simpler, and IMHO clearer:
if 'mystring' not in s:
print 'not found'
else:
print 'foundit'
print 'processing'
I've always vacillated on whether that would better be written as Larry
does, or as
if 'mystring' in
* Ben Finney:
"D'Arcy J.M. Cain" writes:
On Wed, 10 Feb 2010 01:38:50 +0100
"Alf P. Steinbach" wrote:
However, although in this particular case the Ad Hominems
constituted logical fallacies, not all Ad Hominems are logical
fallacies.
Yes they are. Using the reput
* Stephen Hansen:
On Tue, Feb 9, 2010 at 1:08 PM, Alf P. Steinbach <mailto:al...@start.no>> wrote:
[abundant snips which do not accurately represent who said what where
due to my own laziness]
Not sure, but perhaps it's possible to mail directly
* Olof Bjarnason:
2010/2/10 Peter Otten <__pete...@web.de>:
pyt...@bdurham.com wrote:
Does Python provide a way to format a string according to a
'picture' format?
For example, if I have a string '123456789' and want it formatted
like '(123)-45-(678)[9]', is there a module or function that wi
* Duncan Booth:
"Alf P. Steinbach" wrote:
In CPython objects once created remain in the same memory location
(and their id is their address). Compare that to IronPython where the
objects themselves can move around in memory so they have no fixed
address. Try comparing the
* Steven D'Aprano:
On Wed, 10 Feb 2010 09:13:22 +0100, Alf P. Steinbach wrote:
You've
dismissed at least one of my arguments with a simple hand-waving of,
"That's invalid, cuz."
That is not a quote of me. It is a lie.
Alf, although your English in this forum has
* Steve Holden:
Alf P. Steinbach wrote:
[snip]
Since in the quoting above no reference to definition of "pointer"
remains: "pointer" refers to a copyable reference value as seen from the
Python level, in the same way as "pointer" is used by e.g. the Java
languag
* Ethan Furman:
Steven D'Aprano wrote:
Believe me Alf, the fact that people are taking the time to try to
argue with you instead of just kill-filing you is a compliment.
It's a compliment I am not paying, although I am grateful to those who
are attempting to teach him. At the rate it's goi
* Steven D'Aprano:
On Wed, 10 Feb 2010 21:02:14 +0100, Alf P. Steinbach wrote:
"pointer" refers to a copyable reference value as seen from the Python
level, in the same way as "pointer" is used by e.g. the Java language
spec.
Python doesn't have "copya
* Steven D'Aprano:
On Wed, 10 Feb 2010 23:02:27 +0100, Alf P. Steinbach wrote:
For a less likely more technical interpretation, as far as I know in
Python there's just one case of a pointer that does not point to
anything, namely as exemplified by
def foo():
print( x )
* David:
I have a module toolkit.py with some functions I use often. One of
these functions displays a usage message (__doc__).
def usage(messages=[], exit=-1):
"""Print the doc string as wells as any useful messages."""
print(__doc__)
for message in messages:
print("\033[91
* Steve Holden:
So now the whole thing boils down to "Alf against the world"? The
reminds me of the story about the woman who went to see her son qualify
from his basic army training. When asked what she thought of the parade
she said it was very nice, but that "everyone but our Alf was out of s
* Steve Holden:
Alf P. Steinbach wrote:
* Steve Holden:
Alf P. Steinbach wrote:
[snip]
Since in the quoting above no reference to definition of "pointer"
remains: "pointer" refers to a copyable reference value as seen from the
Python level, in the same way as "poi
* Steve Holden:
Alf P. Steinbach wrote:
* Steve Holden:
So now the whole thing boils down to "Alf against the world"? The
reminds me of the story about the woman who went to see her son qualify
from his basic army training. When asked what she thought of the parade
she said it was
* Steven D'Aprano:
On Wed, 10 Feb 2010 23:56:36 +0100, Alf P. Steinbach wrote:
* Steven D'Aprano:
On Wed, 10 Feb 2010 21:02:14 +0100, Alf P. Steinbach wrote:
"pointer" refers to a copyable reference value as seen from the Python
level, in the same way as "pointer&
* alex23:
"Alf P. Steinbach" wrote:
Telling someone to "learn to read" is a Steve Holden'sk way to imply that the
person is an ignoramus who hasn't bothered to learn to read.
Ad hominem.
So, you
are misrepresenting -- again -- and in a quite revealing w
* I V:
On Thu, 11 Feb 2010 07:37:35 +0100, Alf P. Steinbach wrote:
* Steven D'Aprano:
s = [1]
t = s # Binds the name t to the object bound to the name s.
t[0] = 2 # Changes the object bound to the name t print(s) #
Checks the object via the original name.
Notice that
* Steve Holden:
Alf P. Steinbach wrote:
* Steven D'Aprano:
[...]
accusing them of lying for having an opinion that differs from yours,
That is untrue.
Well, that says it all really.
You seem to insinuate that I'm saying that Steven is lying, and/or that Steven
is lying.
Fr
* Steve Holden:
Alf P. Steinbach wrote:
* Steve Holden:
[...]
In this particular part of the thread I am attempting, unsuccessfully,
to convince you that a change in *your* behavior would lead to less
hostility directed towards the way you present your ideas.
You apparently feel it is quite
* Jonathan Gardner:
On Feb 10, 3:23 pm, Peng Yu wrote:
I'm wondering there is already a function in python library that can
merge intervals. For example, if I have the following intervals ('['
and ']' means closed interval as
inhttp://en.wikipedia.org/wiki/Interval_(mathematics)#Excluding_the_
* Terry Reedy:
On 2/11/2010 1:37 AM, Alf P. Steinbach wrote:
Consider just the
assert( t is not s )
t = s
Does this change anything at all in the computer's memory?
By 'computer', do you mean 'anything that computes' (including humans)
or specifically 'e
* Jeremy:
I have been using Python for several years now and have never run into
memory errors…
until now.
My Python program now consumes over 2 GB of memory and then I get a
MemoryError. I know I am reading lots of files into memory, but not
2GB worth. I thought I didn't have to worry about
* Steven D'Aprano:
On Thu, 11 Feb 2010 23:26:34 +0100, Alf P. Steinbach wrote:
I presume you agree that the name 'Alf P. Steinbach' refers to you. Do
you then consider it to be a 'reference' to you?
Yes, and that's irrelevant, because you can't chang
* Martin P. Hellwig:
Well at least you are well written and more subtle than Xah Lee.
Though I find him also quite amusing, I do like a good flame-war every
now and again, and in that perspective I solute you.
The technical discussion is now at point where one poster maintains that
reference
ation aspects, persisting in the face
of corrections, have just, IMHO, been consistent attempts at misrepresentation.
On Feb 11, 4:49 am, "Alf P. Steinbach" wrote:
*The* standard general language independent definition?
[ of pointer ]
Yes.
As defined where?
For example, as I us
* Christian Heimes:
mk wrote:
Hmm how about "call by label-value"?
Or "call by guido"? How do you like "call like a dutch"? :]
Just a note: it might be more clear to talk about "pass by XXX" than "call by
XXX".
Unless you're talking about something else than argument passing.
The standard
* Antoine Pitrou:
Le Fri, 12 Feb 2010 17:14:57 +, Steven D'Aprano a écrit :
What Python does is called "pass by sharing", or sometimes "pass by
object reference". It is exactly the same as what (e.g.) Ruby and Java
do, except that confusingly the Ruby people call it "pass by reference"
and t
* Steve Holden:
Alf P. Steinbach wrote:
You may note that that Wikipedia article refers to an article that I
wrote about pointers in C++.
It's a broken link, referring to a non-existent server.
Yes, sorry.
It's been that way a long time, and for the same reason my C++ tutorial,
* Antoine Pitrou:
Le Fri, 12 Feb 2010 23:12:06 +0100, Alf P. Steinbach a écrit :
Steven talks about the standard meaning of "pass by reference".
See my answer to Steve's message. You can't postulate a "standard
meaning" of "pass by reference" ind
* Steven D'Aprano:
On Fri, 12 Feb 2010 21:26:24 +0100, Alf P. Steinbach wrote:
Yes, I do count this as a personal attack and flaming.
The litmus test for that is that it says something very negative about
the person you're debating with.
As negative as accusing somebody of int
* Mark Lawrence:
Alf P. Steinbach wrote:
An extremely long thread dedicated to the notion that there are no
references in Python (which is blatantly false), coupled with personal
attacks on the one person arguing that there are. I could easily think
that you were having me on. Of course
* Jordan Apgar:
I'm trying to run two servers in the same program at once. Here are
the two:
class TftpServJ(Thread):
def __init__(self, ip, root, port=69, debug = False ):
Thread.__init__(self)
setup stuff here
def run(self):
try:
self.server.listen(
* J Wolfe:
I would really appreciate some help with this. I'm fairly new to
using classes...What am I doing wrong? All I get is a blank window. I
can't seem to figure out how to initialize this Progress Bar.
Thanks,
Jonathan
##file Meter.py
fro
* hjebbers:
I enlarged the windows page file from 750Kb to 1.5Gb .
The crash still happens.
btw, the crash does not happen at a peak memory usage.
According to windows task manager, at the moment of crash mem usage of
my program is 669kb, peak memory usage is 1.136kb
henk-jan
Probably you mean
* Ernest Adrogué:
Hello everybody,
I'm designing a container class that supports slicing.
The problem is that I don't really know how to do it.
class MyClass(object):
def __init__(self, input_data):
self._data = transform_input(input_data)
def __getitem__(self, k
* Aahz:
In article ,
Steve Holden wrote:
Whether in CPython, Jython or IronPython the value returned by calling
id(x) (whether x is a literal, a simple name or a more complex
expression) is absolutely no use as an accessor: it does not give you
access to the referenced value.
If you disagree,
* Michael Sparks:
[Due to the appearance of reasoned discussion (it's not practical to read it
all!), I felt it necessary to respond. It turned out to be a long sequence of
trivial fallacies, peppered with various allegations and insinuations.]
[snip extremely much]
Now let's move to the
* Steve Holden:
Alf P. Steinbach wrote:
* Michael Sparks:
[Due to the appearance of reasoned discussion (it's not practical to read it
all!)
[...]
Therefore to say "in reality the implementation will be passing a
reference or pointer" is invalid. There is after a
* vsoler:
Hi,
My python script needs to work with a .txt file in a directory. I
would like to give the user the possibility to choose the file he
needs to work on in as much the same way as I open a .xls file in
Excel, that is, I want to make appear the "Windows'" window and let
the user choose.
* Benjamin Kaplan:
On Sat, Feb 13, 2010 at 7:50 PM, Alf P. Steinbach wrote:
At this point consider whether it's possible to implement Pascal in Haskell.
If it is possible, then you have a problem wrt. drawing conclusions about
pointers in Pascal, uh oh, they apparently can't exist.
* Steve Howell:
This thread is interesting on many levels. What is the core question
that is being examined here?
I think that regarding the technical it is whether a Python name refers to an
object or not. I maintain that it does, and that the reference can be copied,
and that the semantics
* Steve Holden:
Alf P. Steinbach wrote:
* Steve Holden:
Alf P. Steinbach wrote:
* Michael Sparks:
[Due to the appearance of reasoned discussion (it's not practical to
read it all!)
[...]
Therefore to say "in reality the implementation will be passing a
reference or pointer&q
* Bruno Desthuilliers:
Alf P. Steinbach a écrit :
(snip)
This group has an extraordinary high level of flaming and personal
attacks
Oh my...
(snip remaining non-sense)
Mr Steinbach, I bet you'll count this as another "flaming" and "personal
attack", but nonetheless
* Aahz:
In article ,
Alf P. Steinbach wrote:
My original statement, with reference to the Java language spec,
didn't say much more about the language than that it has assignable
references.
Assuming this is what you're referring to:
Python passes pointers by value, just as
* Steven D'Aprano:
On Sat, 13 Feb 2010 21:33:50 -0800, Steve Howell wrote:
You seem to be missing the point that "curly braces" is a concrete
term that very specifically applies to spelling.
And you seem to be missing the point that "pointer" is also a concrete
term that very specifically ap
* Ethan Furman:
Steve Howell wrote:
Going back to pointers vs. references, I think the key distinction
being made is that pointers allow specific memory manipulation,
although I think even there you're really just dealing with
abstractions. The address 0x78F394D2 is a little bit closer to the
* chiranjeevi muttoju:
Hi,
when i'm installing the pytc(python wrapper for tokyo cabinet.) i'm
getting the fallowing error.. i'm getting this error for python2.6
only.. for python 2.4 its working fine..
-
running install
running build
running build_ext
* katrine:
Hope you guys don't mind a question about building matplotlib from a
biologist who wants to learn how to use python.
I am trying to install matplotlib on my mac with OS X 10.4.11, using
python 2.6.4 and Xcode 2.2.1. I have had a few fights with freetype
and Tkinter, and I think I've
* R (Chandra) Chandrasekhar:
width = 5
height = 30
colors = ['#abcdef]', '#456789']
filename = "/tmp/image.png"
# I want to get the equivalent of variable interpolation in Perl
# so that the command
#
# convert -size 5x30 gradient:#abcdef-#456789 /tmp/image.png
#
# is derived from the variables
* Steven D'Aprano:
On Mon, 15 Feb 2010 21:25:23 +, Arnaud Delobelle wrote:
John Posner writes: [...]
x = s[0]
[...]
assigns the name *x* to the object that *s[0]* refers to
s[0] does not refer to an object, it *is* an object (once evaluated of
course, otherwise it's just a Python e
* News123:
Hi,
What is the best way with python to get a list of all windows services.
As a start I would be glad to receive only the service names.
However it would be nicer if I could get all the properties of a service
as well.
Thanks for any info and bye
* Library:
If there is some
* alex23:
News123 wrote:
What is the best way with python to get a list of all windows services.
As a start I would be glad to receive only the service names.
However it would be nicer if I could get all the properties of a service
as well.
I highly recommend Tim Golden's fantastic WMI modu
* alex23:
On Feb 16, 1:28 pm, "Alf P. Steinbach" wrote:
It's probably Very Good, but one Microsoft-thing one should be aware of: using
WMI functionality generally starts up a background WMI service...
"Probably"?
That means that since you say it's fant
* alex23:
"Alf P. Steinbach" wrote:
it's great that you provide the kind
of help that you did, pointing out a probably very good module that it seems
gives the required functionality, and giving an URL.
Yes, because that's _actually helping people_ and not just
contrib
* Tim Golden:
On 16/02/2010 12:18, News123 wrote:
I don't use the script often, so if it would start a WMI service during
runtime and stop it afterwards it would be fine.
FWIW -- your other considerations notwithstanding -- I'm not aware
of WMI having this effect. Generally you can assume that
* Tim Golden:
On 16/02/2010 12:48, Alf P. Steinbach wrote:
I just googled the filename from memory, found
http://www.neuber.com/taskmanager/process/wmiprvse.exe.html>
Don't know if I've disabled it because invoking wmic didn't produce it.
Uh, wait, since it hosts the
* Steve Holden:
Alf P. Steinbach wrote:
[...]
I'll do some further research to see what's going on there.
Cheers,
- Alf (is this off-topic for the group?)
It's gone a lot further off than this without anyone complaining. I
think your experiences to date should convince y
* Paul Rubin:
John Nagle writes:
However, things have changed, and lists and tuple *are* effectively
mutable and hashable versions of each other...
It's the concurrency aspect of this that interests me, though.
A language with immutable objects can potentially handle concurrency
more safely
* Bryan:
I am looping through a list and creating a regular dictionary. From
that dict, I create an ordered dict. I can't think of a way to build
the ordered dict while going through the original loop. Is there a
way I can avoid creating the first unordered dict just to get the
ordered dict?
* W. eWatson:
So what's the bottom line? This link notion is completely at odds with
XP,
Well, Windows NT has always had *hardlinks*.
I found it a bit baffling that that functionality is documented as not
implemented for Windows in the Python standard library.
But OK, it was non-trivial to
* W. eWatson:
On 2/22/2010 8:50 PM, Alf P. Steinbach wrote:
* W. eWatson:
So what's the bottom line? This link notion is completely at odds with
XP,
Well, Windows NT has always had *hardlinks*.
I found it a bit baffling that that functionality is documented as not
implemented for Wi
* Paul Rubin:
Steve Howell writes:
My gut instinct is that functional programming works well for lots of
medium sized problems and it is worth learning.
I think it's worth learning because it will make you a better programmer
even if you never use it for anything beyond academic exercises. I
* Nomen Nescio:
Hello,
Can someone help me understand what is wrong with this example?
class T:
A = range(2)
B = range(4)
s = sum(i*j for i in A for j in B)
It produces the exception:
: global name 'j' is not defined
Which Python implementation are you using?
I can't reproduce the er
* sjdevn...@yahoo.com:
On Feb 24, 8:05 pm, Lawrence D'Oliveiro wrote:
In message , Wanja Gayk wrote:
Reference counting is about the worst technique for garbage collection.
It avoids the need for garbage collection.
That's like saying that driving a VW Beetle avoids the need for an
automob
* Chris Gray:
Lawrence D'Oliveiro writes:
In message , Wanja Gayk wrote:
Reference counting is about the worst technique for garbage collection.
It avoids the need for garbage collection. It means I can write things like
I'm by no means an expert, but how does reference counting deal with
* Michael Pardee:
I'm relatively new to python and I was very surprised by the following behavior:
a=1
b=2
'a' refers to an object representing the integer 1.
Since 1 is an immutable value you can just as well think of it as 'a' containing
the value 1, because a reference to an immutable va
* qtrimble:
I'm a python newbie but I do have some basic scripting experience. I
need to take the line starting with "wer" and extract the year and day
of year from that string. I want to be able to add the year and day
of year from the last line having "wer*" to the lines occurring in
between
* Raphael Mayoraz:
Hello,
I'd like to define variables with some specific name that has a common
prefix.
Something like this:
varDic = {'red': 'a', 'green': 'b', 'blue': 'c'}
for key, value in varDic.iteritems():
'myPrefix' + key = value
I know this is illegal, but there must be a trick s
* MRAB:
Steven D'Aprano wrote:
On Fri, 26 Feb 2010 09:09:36 -0600, Tim Daneliuk wrote:
Reminiscent of:
mov AX,BX ; Move the contents of BX into AX
That's a *good* comment, because without it most English-speaking
people would assume you were moving the contents of AX into B
* @ Rocteur CC:
On 27 Feb 2010, at 12:44, Steven D'Aprano wrote:
On Sat, 27 Feb 2010 10:36:41 +0100, @ Rocteur CC wrote:
cat file.dos | python -c "import sys,re;
[sys.stdout.write(re.compile('\r\n').sub('\n', line)) for line in
sys.stdin]" >file.unix
Holy cow!!! Calling a regex just fo
* Dr. Phillip M. Feldman:
Stefan Behnel-3 wrote:
alexander@gmail.com wrote:
I think the speed function may be broken from the turtle graphics package
"from turtle import *
speed('fastest')
forward(50)"
I have tried all of the different speed settings, but I get no change
in the turtl
* Michael Rudolf:
Out of curiosity I tried this and it actually worked as expected:
>>> class T(object):
x=[]
foo=x.append
def f(self):
return self.x
>>> t=T()
>>> t.f()
[]
>>> T.foo(1)
>>> t.f()
[1]
>>>
At first I thought "hehe, always fun to play around with p
* vsoler:
I have a class that is a wrapper:
class wrapper:
def __init__(self, object):
self.wrapped = object
def __getattr__(self, attrname):
print 'Trace: ', attrname
#print arguments to attrname, how?
return getattr(self.wrapped, attrname)
I can run it
In case Someone Else(TM) may need this.
This code is just how it currently looks, what I needed for my code, so it's not
a full-fledged or even tested class.
But it works.
import tkinter as t
import tkinter.simpledialog
import tkinter.messagebox
t.askstring = tkinter.simpledialog.askstr
* rantingrick:
On Feb 28, 6:30 pm, "Alf P. Steinbach" wrote:
In case Someone Else(TM) may need this.
This code is just how it currently looks, what I needed for my code, so it's not
a full-fledged or even tested class.
Thanks for sharing Alf,
Thats works fine "a
* rantingrick:
kw.setdefault('activestyle', 'none')
Hm, let me steal this line... Thanks!
Cheers,
- Alf
--
http://mail.python.org/mailman/listinfo/python-list
How to crash CPython 3.1.1 in Windows XP:
python -c "import os; os.spawnl( os.P_WAIT, 'blah' )"
I reported this as a bug, http://bugs.python.org/issue8036>
Workaround: it seems that spawnl is happy with an absolute path as second arg,
followed by a third arg which should be the name of the p
* Steven Woody:
Hi,
I want to interactive with an OLE application with pywin32. The
problem is I get totally no idea how to find the object in OLEView and
how to figure out it's interface.
With pywin32's example, I even don't understand that in the below statement,
win32com.client.Dispatch(
* Tracubik:
hi, i've to convert from Pascal this code:
iterations=0;
count=0;
REPEAT;
iterations = iterations+1;
...
IF (genericCondition) THEN count=count+1;
...
CASE count OF:
1: m = 1
2: m = 10
3: m = 100
Uhm, is this syntactically valid Pascal? As I recall
* Alf P. Steinbach:
* Tracubik:
hi, i've to convert from Pascal this code:
iterations=0;
count=0;
REPEAT;
iterations = iterations+1;
...
IF (genericCondition) THEN count=count+1;
...
CASE count OF:
1: m = 1
2: m = 10
3: m = 100
Uhm, is this syntactically
* Alf P. Steinbach:
* Alf P. Steinbach:
* Tracubik:
hi, i've to convert from Pascal this code:
iterations=0;
count=0;
REPEAT;
iterations = iterations+1;
...
IF (genericCondition) THEN count=count+1;
...
CASE count OF:
1: m = 1
2: m = 10
3: m = 100
Uhm, is
* Patrick Maupin:
On Mar 2, 5:36 pm, Steven D'Aprano wrote:
You seem to be taking the position that if you start with a config file
config.json, it is "too hard to edit", but then by renaming it to
config.rson it magically becomes easier to edit. That *is* ludicrous.
No, but that seems to be
For C++ Petru Marginean once invented the "scope guard" technique (elaborated on
by Andrei Alexandrescu, they published an article about it in DDJ) where all you
need to do to ensure some desired cleanup at the end of a scope, even when the
scope is exited via an exception, is to declare a Scope
* Mike Kent:
What's the compelling use case for this vs. a simple try/finally?
if you thought about it you would mean a simple "try/else". "finally" is always
executed. which is incorrect for cleanup
by the way, that's one advantage:
a "with Cleanup" is difficult to get wrong, while a "try"
* Steven D'Aprano:
On Wed, 03 Mar 2010 15:30:36 +, Grant Edwards wrote:
I definitely remember that old MS-DOS programs would treat Ctrl-Z as an
EOF marker when it was read from a text file and would terminate a text
file with a Ctrl-Z when writing one.
I believe that Windows (at least up
* Robert Kern:
On 2010-03-03 09:39 AM, Mike Kent wrote:
What's the compelling use case for this vs. a simple try/finally?
original_dir = os.getcwd()
try:
os.chdir(somewhere)
# Do other stuff
finally:
os.chdir(original_dir)
# Do other cleanup
A custo
* Robert Kern:
On 2010-03-03 09:56 AM, Alf P. Steinbach wrote:
* Mike Kent:
What's the compelling use case for this vs. a simple try/finally?
if you thought about it you would mean a simple "try/else". "finally" is
always executed. which is incorrect for clean
* Alf P. Steinbach:
In case Someone Else(TM) may need this.
This code is just how it currently looks, what I needed for my code, so
it's not a full-fledged or even tested class.
But it works.
That code evolved a little to cover more Tk listbox quirks (thanks to Ratingrick
fo
* Robert Kern:
On 2010-03-03 11:18 AM, Alf P. Steinbach wrote:
* Robert Kern:
On 2010-03-03 09:56 AM, Alf P. Steinbach wrote:
* Mike Kent:
What's the compelling use case for this vs. a simple try/finally?
if you thought about it you would mean a simple "try/else".
"
* Robert Kern:
On 2010-03-03 13:32 PM, Alf P. Steinbach wrote:
* Robert Kern:
On 2010-03-03 11:18 AM, Alf P. Steinbach wrote:
* Robert Kern:
On 2010-03-03 09:56 AM, Alf P. Steinbach wrote:
* Mike Kent:
What's the compelling use case for this vs. a simple try/finally?
if you thought
* Robert Kern:
On 2010-03-03 15:35 PM, Alf P. Steinbach wrote:
* Robert Kern:
On 2010-03-03 13:32 PM, Alf P. Steinbach wrote:
* Robert Kern:
On 2010-03-03 11:18 AM, Alf P. Steinbach wrote:
* Robert Kern:
On 2010-03-03 09:56 AM, Alf P. Steinbach wrote:
* Mike Kent:
What's the compe
* Jean-Michel Pichavant:
Alf P. Steinbach wrote:
From your post, the scope guard technique is used "to ensure some
desired cleanup at the end of a scope, even when the scope is exited
via an exception." This is precisely what the try: finally: syntax is
for.
You'd have to
* Robert Kern:
On 2010-03-03 18:49 PM, Alf P. Steinbach wrote:
* Robert Kern:
[snip]
can you
understand why we might think that you were saying that try: finally:
was wrong and that you were proposing that your code was equivalent to
some try: except: else: suite?
No, not really. His code
* Robert Kern:
On 2010-03-04 09:48 AM, Alf P. Steinbach wrote:
* Jean-Michel Pichavant:
Alf P. Steinbach wrote:
From your post, the scope guard technique is used "to ensure some
desired cleanup at the end of a scope, even when the scope is exited
via an exception." This is precisel
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