On Thu, 09 Sep 2010 12:23:17 -0700, Ethan Furman wrote:
basically a Queue is a syncronization primitive used to
share and pass data to and from parent/child processes.
A pipe is as the name suggests, a socket pair connected
end-to-end allowing for full-duplex communications.
Isn't a
On Wed, 08 Sep 2010 03:30:00 -0700, Baba wrote:
Who is licensed to judge what can and cannot be posted as a question?
Exactly the same set of people who are licensed to judge what can and
cannot be posted as an answer.
If you don't like the responses you get here, you could try posting your
On Thu, 09 Sep 2010 05:23:14 -0700, Ryan wrote:
But, since SIGSEGV is asynchronous
SIGSEGV is almost always synchronous.
In general, is there anyway to catch a SIGSEGV on import?
No. If SIGSEGV is raised, it often indicates that memory has been
corrupted. At that point, you can't assume
On Fri, 03 Sep 2010 11:21:36 +0200, Michael Kreim wrote:
An anonymous Nobody suggested to use Numpy. I did not do this, because I
am very very new to Numpy and I did not figure out a Numpy specific way
to do this. Maybe a Numpy expert has something for me?
The problem with giving examples
On Thu, 02 Sep 2010 13:12:07 +1000, Astan Chee wrote:
I have a piece of code that looks like this:
import subprocess
retcode = subprocess.call([java,test,string])
print Exited with retcode + str(retcode)
What I'm trying to do (and wondering if its possible) is to make sure
that any
On Wed, 01 Sep 2010 23:57:21 -0700, swapnil wrote:
I could not find any documentation for variables os.path.sep and
os.path.altsep. Although the first is pretty straightforward can
anyone explain the purpose of the second variable? Is it even useful?
The purpose is so that you can do e.g.:
On Thu, 02 Sep 2010 12:02:40 +0200, Michael Kreim wrote:
I was comparing the speed of a simple loop program between Matlab and
Python.
imax = 10
a = 0
for i in xrange(imax):
a = a + 10
print a
Are there any ways to speed up the for/xrange loop?
Sure; the above can be
On Tue, 31 Aug 2010 18:13:44 +0100, MRAB wrote:
this works for normal paths but as soon as i have a path that does
include a , it breaks. The problem now is that (afaik) linux allows
every char (aside from / and null) to be used in filenames. The only
solution i can think of is using null as
On Tue, 31 Aug 2010 18:49:33 +, Grant Edwards wrote:
How many filenames contain control characters?
How many filenames contain ,? Not many,
Unless you only ever deal with Unix folk, it's not /that/ uncommon to
encounter filenames which are essentially complete sentences, punctuation
On Mon, 30 Aug 2010 12:50:32 +0200, Thomas Jollans wrote:
Face the facts dude. The Python docs have some major problems.
They were pretty good when Python was a new, cool, project used
by a handful of geeks. They are good relative to the average
(whatever that is) open source project -- but
On Mon, 30 Aug 2010 10:24:26 -0400, python wrote:
Kudos for avoiding shell=True
My understanding is that the only time one needs to use shell=True is
when they are 'executing' a non-executable file whose executable must be
discovered via file association rules? Does that sound accurate?
On Fri, 27 Aug 2010 13:28:46 +0600, Rami Chowdhury wrote:
Having this as a separate permission allows normal users to add entries
to log files but not to erase existing entries.
Unix/Linux systems can do this already.
Ooh, I didn't know that -- what combination of permissions would I have
On Thu, 26 Aug 2010 23:56:26 -0700, Bryan wrote:
follow our advice. Split using b'\r\n\r\n' and use the maxsplit=1
argument to make sure that you do not split on spurious b'\r\n\r\n'
sequences inside the JPEG body. Do not decode the bytes.
Correct, and I'll add that this is a case where we
On Mon, 23 Aug 2010 10:38:02 -0700, Leon Derczynski wrote:
I would like to run an external program, and discard anything written
to stderr during its execution, capturing only stdout. My code
currently looks like:
def blaheta_tag(filename):
blaheta_dir =
On Fri, 20 Aug 2010 19:41:44 +0200, Thomas Jollans wrote:
Create Folders and Delete Subfolders and Files correspond to having
write permission on a directory.
How does append differ from write? If you have appending permissions, but not
writing ones, is it impossible to seek? Or is there a
On Thu, 19 Aug 2010 14:30:34 +0200, Alain Ketterlin wrote:
If a python module requires a data file to run how would I reference
this data file in the source in a way that does not depend on whether
the module is installed system-wide, installed in $HOME/.local or is
just placed in a directory
On Fri, 20 Aug 2010 00:04:29 +0200, Thomas Jollans wrote:
This brings up an interesting, but probably quite complicated question: is it
reasonable to try to express Windows permissions using full POSIX ACLs
Do Windows NT permissions do anything more? Or, apart from the
executable bit,
On Wed, 18 Aug 2010 05:56:27 -0700, Duim wrote:
Although I'm sure somewhere this issue is discussed in this (great)
group, I didn't know the proper search words for it (although I
tried).
I'm using python (2.6) scientifically mostly, and created a simple
class to store time series (my
On Mon, 16 Aug 2010 22:35:49 -0400, AK wrote:
As monitors are getting bigger, is there a general change in opinion on
the 79 chars limit in source files? I've experimented with 98 characters
per line and I find it quite a bit more comfortable to work with that
length, even though sometimes I
On Fri, 13 Aug 2010 11:45:28 +0200, Jean-Michel Pichavant wrote:
I'm trying to update the content of a $Microsoft$ VC2005 project files
using a python application.
Since those files are XML data, I assumed I could easily do that.
My problem is that VC somehow thinks that the file is
On Wed, 11 Aug 2010 18:49:26 -0700, RG wrote:
This doesn't explain why cat | cat when run interactively outputs
line-by-line (which it does). STDIN to the first cat is a TTY, but the
second one isn't.
GNU cat doesn't use stdio, it uses read() and write(), so there isn't any
buffering.
For
On Thu, 12 Aug 2010 18:19:40 -0700, Benjamin Kaplan wrote:
But that's not keeping the number the way it was typed. It's just not
showing you the exact approximation.
Nor is 34.523 showing you the exact approximation.
The closest double to 34.52 is 4858258098025923 / 2**47, whose
On Thu, 12 Aug 2010 16:09:10 -0700, Brian Salter wrote:
I've seen a number of tutorials that describe how to bring in a dll in
python, but does anybody know of a tutorial for how to bring in a lib? Is
it even possible?
No. ctypes relies upon the OS to actually load the library, and the OS
On Wed, 11 Aug 2010 13:08:59 +1000, Cameron Simpson wrote:
The reason .bashrc gets overused for envars, aside from ignorance and
propagated bad habits, is that in a GUI desktop the setup sequence is
often a bit backwards. A conventional terminal/console login means you
get a login shell that
On Wed, 11 Aug 2010 10:32:41 +, Tim Harig wrote:
Usually you either
need an option on the upstream program to tell it to line
buffer explicitly
once cat had an option -u doing exactly that but nowadays
-u seems to be ignored
On Mon, 09 Aug 2010 04:41:23 -0700, saeed.gnu wrote:
x is not None is a really silly statement!! because id(None) and id
of any constant object is not predictable! I don't know whay people
use is instead of ==. you should write if x!=None instead of x
is not None
No, you should use the
On Fri, 06 Aug 2010 18:39:27 -0700, dmtr wrote:
Steven, thank you for answering. See my comments inline. Perhaps I
should have formulated my question a bit differently: Are there any
*compact* high performance containers for unicode()/str() objects in
Python? By *compact* I don't mean
On Sat, 07 Aug 2010 09:53:48 -0400, D'Arcy J.M. Cain wrote:
A new born baby is in his/her first year. It's year 1 of his/her life.
For this reason, also the year 0 doesn't exist. From the fact that a
baby can be half a year old, you derive that arrays should have floats
as indices?
On Sat, 07 Aug 2010 13:48:32 +0200, News123 wrote:
Common sense is wrong. There are many compelling advantages to
numbering from zero instead of one:
http://lambda-the-ultimate.org/node/1950
It makes sense in assembly language and even in many byte code languages.
It makes sense if
On Fri, 06 Aug 2010 02:06:29 -0700, loial wrote:
I need to read a large amount of data that is being returned in
standard output by a shell script I am calling.
(I think the script should really be writing to a file but I have no
control over that)
If the script is writing to stdout, you
On Thu, 05 Aug 2010 12:23:35 +0100, Chris Withers wrote:
...then the output is indeed captured. So, what is svn doing
differently? How is it escaping its jail?
maybe it does not read from stdin but directly from /dev/tty
But why only the request for auth credentials?
So that you can do
On Thu, 05 Aug 2010 10:50:21 -0700, Martin Landa wrote:
is it possible to pass pointer to a method using ctypes.
I don't know about methods, but it works for functions.
Sample code:
...
G_set_error_routine(byref(self._print_error))
This won't work; you have to be more explicit,
On Mon, 02 Aug 2010 17:17:35 -0700, Peter wrote:
But I always used to tell
people - by the time I got a program to compile then I figured 99% of
the bugs were already discovered! Try that with C/C++ or almost any
other language you care to name :-)
ML and Haskell are also quite good for this
On Mon, 02 Aug 2010 15:18:30 -0700, sturlamolden wrote:
Has it ever been planned to rewrite in C++ the historical implementation
(of course in an object oriented design) ?
OO programming is possible in C. Just take a look at GNOME and GTK.
One feature which can't readily be implemented in
On Mon, 02 Aug 2010 23:27:37 +0200, Zdenek Maxa wrote:
I need to start a process (using subprocess.Popen()) and wait until the
new process either fails or successfully binds a specified port. The
fuser command seems to be indented exactly for this purpose. Could
anyone please provided a hint
On Tue, 03 Aug 2010 18:48:24 +1000, James Mills wrote:
One feature which can't readily be implemented in C is the automatic
clean-up side of the RAII idiom.
C is a Turing-Complete Language is it not ?
If so, therefore is it not true anything can be implemented ?
Even the automated
On Mon, 02 Aug 2010 14:21:38 +0200, Christian Heimes wrote:
You might want to drop shell=True and use
a list as arguments instead.
The two issues (whether shell is True/False and whether the command is
a list or string) are orthogonal.
You should always use a list for the command, unless you
On Thu, 29 Jul 2010 23:49:40 +, Steven D'Aprano wrote:
It looks to me like Python uses a 16-bit implementation internally,
It typically uses the platform's wchar_t, which is 16-bit on Windows and
(typically) 32-bit on Unix.
IIRC, it's possible to build Python with 32-bit Unicode on
On Mon, 26 Jul 2010 21:42:24 -0500, Tim Chase wrote:
Please! Never export anything from your .bashrc unless you
really know what you're doing. Almost all exports should be
done in your .bash_profile
Could you elaborate on your reasoning why (or why-not)? I've
found that my .bash_profile
On Fri, 23 Jul 2010 18:27:50 -0400, Terry Reedy wrote:
But in the
meanwhile, once you get an error, you know what it is. You can
intentionally feed code bad data and see what you get. And then maybe
add a test to make sure your code traps such errors.
That doesn't really help with
On Sun, 25 Jul 2010 14:47:11 +, Steven D'Aprano wrote:
But in the
meanwhile, once you get an error, you know what it is. You can
intentionally feed code bad data and see what you get. And then maybe
add a test to make sure your code traps such errors.
That doesn't really help with
On Fri, 23 Jul 2010 10:45:32 +0200, Thomas Guettler wrote:
I use non-blocking io to check for timeouts. Sometimes I get EAGAIN
(Resource temporarily unavailable) on write(). My working code looks
like this. But I am unsure how many bytes have been written to the pipe
if I get an EAGAIN
On Fri, 23 Jul 2010 10:42:26 +, Steven D'Aprano wrote:
Don't write bare excepts, always catch the error you want and nothing
else.
That advice would make more sense if it was possible to know which
exceptions could be raised. In practice, that isn't possible, as the
documentation seldom
On Tue, 20 Jul 2010 10:32:12 -0700, Chris Rebert wrote:
I believe you need to /eventually/ call .wait() as shown to avoid the
child becoming a zombie process.
Alternatively, you can call .poll() periodically. This is similar to
.wait() insofar as it will reap the process if it has terminated,
On Sun, 18 Jul 2010 15:18:59 -0700, sturlamolden wrote:
why is this group being spammed?
There used to be bots that issued cancel messages against spam, but I
don't think they are actively maintained anymore.
Mostly because cancel messages are invariably ignored nowadays.
--
On Mon, 19 Jul 2010 17:57:31 +0100, MRAB wrote:
About this one. I tried the os.system copy. But it seems I cant find the
right syntax.
*os.system (xcopy /s %s %s % (dirname1, dirname2))*
This one seems to not working.
In what way doesn't it work?
If the names contain spaces then
On Mon, 19 Jul 2010 20:06:16 +0200, Antoine Pitrou wrote:
So, in short, Python doesn't check SIGKILL by itself. It's just
forbidden by the underlying C standard library,
Actually, it's forbidden by the kernel. The C library just passes along
the error to Python, which just passes it to the
On Wed, 07 Jul 2010 15:08:07 +0200, Thomas Jollans wrote:
you should never rely on a floating-point number to have exactly a
certain value.
Never is an overstatement. There are situations where you can rely
upon a floating-point number having exactly a certain value.
First, floating-point
On Fri, 02 Jul 2010 12:07:33 -0700, John Nagle wrote:
I think one point which needs to be emphasized more is what does
python 3 bring to people. The what's new in python 3 page gives
the impression that python 3 is about removing cruft. That's a very
poor argument to push people to switch.
On Sat, 03 Jul 2010 10:33:49 -0400, Sudheer wrote:
What's wrong with the following code. The program waits indefenitely
at 'output = p2.stdout.read()'
from subprocess import *
p1=Popen(['tr', 'a-z', 'A-Z'],stdin=PIPE,stdout=PIPE)
p2=Popen(['tr','A-Z',
On Wed, 30 Jun 2010 23:40:06 -0600, Michael Torrie wrote:
Given char buf[512], buf's type is char * according to the compiler
and every C textbook I know of.
No, the type of buf is char [512], i.e. array of 512 chars. If you
use buf as an rvalue (rather than an lvalue), it will be implicitly
On Wed, 30 Jun 2010 21:12:12 -0700, m wrote:
If I add the line:
for l in line: print ord(l),'\t',l
after the first readline, I get the following:
27
91[
480
480
109 m
27
91[
513
557
109 m
before the codes begin for the string as it
On Tue, 29 Jun 2010 08:41:03 -0400, Roy Smith wrote:
And what about regular expressions?
What about them? As the saying goes:
Some people, when confronted with a problem, think
I know, I'll use regular expressions.
Now they have two problems.
That's silly. RE is a
On Tue, 29 Jun 2010 12:30:36 +1200, Lawrence D'Oliveiro wrote:
Seriously, almost every other kind of library uses a binary API. What
makes databases so special that they need a string-command based API?
HTML is also effectively a string-based API.
HTML is a data format. The sane way to
On Sun, 27 Jun 2010 14:36:10 +1200, Lawrence D'Oliveiro wrote:
In any case, you're still trying to make arguments about whether it's easy
or hard to get it right, which completely misses the point. Eliminating
the escaping entirely makes it impossible to get it wrong.
Except nobody has yet
On Sat, 26 Jun 2010 12:40:41 +1200, Lawrence D'Oliveiro wrote:
I construct ad-hoc queries all the time. It really isn’t that hard to
do safely.
Wrong.
Even if you get the quoting absolutely correct (which is a very big if),
you have to remember to perform it every time, without
On Fri, 25 Jun 2010 20:43:51 -0400, Roy Smith wrote:
To bring this back to something remotely Python related, the point of
all this is that security is hard.
Oh, this isn't solely a security issue.
Ask anyone with a surname like O'Neil, O'Connor, O'Leary, etc; they've
probably broken a lot
On Fri, 25 Jun 2010 20:08:27 -0400, geremy condra wrote:
I have written Haskell that runs faster than C, and Forth that runs
faster than C,
Faster than *what* C, though?
With Haskell, there's seldom a significant performance hit for using
-fvia-C, so you would probably have been able to get
On Sat, 26 Jun 2010 18:33:02 +0200, Thomas Jollans wrote:
* str is now unicode = unicode is no longer a pain in the a
True. Now byte strings are a pain in the arse.
--
http://mail.python.org/mailman/listinfo/python-list
On Sat, 26 Jun 2010 21:08:48 +0200, Martin v. Loewis wrote:
I think that's not true. If enough people want to support Python 2 it
might be possible to advance Python 2.
That won't be sufficient: enough people wanting support won't have any
effect. People also need to want it enough to
On Fri, 25 Jun 2010 12:25:56 +1200, Lawrence D'Oliveiro wrote:
Just been reading this article
...
which says that a lot of security holes are arising these days because
everybody is concentrating on unit testing of their own particular
components, with less attention being devoted to overall
On Fri, 25 Jun 2010 12:15:08 +, Jorgen Grahn wrote:
I don't do SQL and I don't even understand the terminology properly
... but the discussion around it bothers me.
Do those people really do this?
Yes. And then some.
Among web developers, the median level of programming knowledge
On Wed, 23 Jun 2010 17:27:16 -0500, Tim Daneliuk wrote:
Given a program 'foo' that takes a command line argument '-I
includefile', I want to be able to look for 'includefile' in a path
specified in an environment variable, 'FOOPATH'.
I'd like a semantic that says:
If 'includefile'
On Sun, 20 Jun 2010 20:00:14 +1000, Ben Finney wrote:
I'm starting a SocketServer.TCPServer in my program, but since I want
to report problems to script starting the program, I want to go daemon
*after* TCPServer has done binding to port.
Is this likely to cause problems? I mean, my client
On Sun, 20 Jun 2010 03:19:55 -0700, southof40 wrote:
I want to select an object from the list with a probability of : cars
0.7, bikes 0.3, trucks 0.1.
I've currently implemented this by creating another list in which each
car object from the original list appears 7 times, each bike 3 times
On Thu, 17 Jun 2010 11:45:03 +0100, Chris Withers wrote:
For whatever reason, tython's time module doesn't provide the tzset()
function on Windows. However, you should be able to use it via ctypes.
This sounds pretty heavyweight for a unit test.
I'm not even sure how I would do this ;-)
On Thu, 17 Jun 2010 11:22:37 +0200, Laurent Verweijen wrote:
This is easy to understand, but I want to pipe it's input/output
by another python program. (I will show what I am doing on the
console to test it)
from subprocess import *
p =
On Wed, 16 Jun 2010 16:30:02 +0100, Chris Withers wrote:
I'd like to make test_non_gmt_timezone at the bottom of
https://...
run on Windows, any suggestions?
MSVCRT has _tzset(), which understands the TZ environment variable.
http://msdn.microsoft.com/en-us/library/90s5c885%28VS.80%29.aspx
On Wed, 16 Jun 2010 16:29:42 -0400, Brandon McGinty wrote:
Both subprocess and os.popen* only allow inputput and output one time,
and the output to be read only when the process terminates.
This is incorrect; you can read from and write to the pipe as you wish.
However: you may have problems
On Tue, 15 Jun 2010 22:57:24 +0200, Antoine Pitrou wrote:
Also, following issue1589 (certificate hostname checking), I think it
would be useful at least to provide the necessary helper functions in
order to check certificate conformity, even if they aren't called
implicitly. I would encourage
On Mon, 14 Jun 2010 10:43:02 -0700, John Nagle wrote:
The new SSL module in Python 2.6
There isn't an SSL module in Python 2.6. There is a module named ssl
which pretends to implement SSL, but in fact doesn't.
is convenient, but insecure.
In which case, it isn't actually convenient, in
On Thu, 10 Jun 2010 08:40:03 -0700, Chris Seberino wrote:
On Jun 10, 6:52 am, Nobody nob...@nowhere.com wrote:
Without the p1.stdout.close(), if the reader (grep) terminates before
consuming all of its input, the writer (ls) won't terminate so long as
Python retains the descriptor
On Wed, 09 Jun 2010 21:15:48 -0700, Chris Seberino wrote:
How do subprocess.Popen(ls | grep foo, shell=True) with shell=False?
The same way that the shell does it, e.g.:
from subprocess import Popen, PIPE
p1 = Popen(ls, stdout=PIPE)
p2 = Popen([grep, foo], stdin=p1.stdout, stdout = PIPE)
On Sun, 06 Jun 2010 15:55:41 -0700, ant wrote:
If we are to make progress, I can see two obvious approaches:
1) Improve Tkinter to the point where it is supportable and supported
by a good fraction of Python programmers
or
2) Drop Tkinter as the default and use something else.
You forgot:
On Mon, 07 Jun 2010 02:31:08 -0700, Richard Thomas wrote:
You're reading those bits backwards. You want to read the most
significant bit of each byte first...
Says who?
There is no universal standard for bit-order.
Among bitmap image formats, XBM is LSB-first while BMP and PBM are
MSB-first.
On Sat, 05 Jun 2010 16:35:42 +0100, MRAB wrote:
In plain language what I wish to do is:
Remove all comma's
Replace all @ with comma's
input_file = open(some_huge_file.txt, r)
output_file = open(newfilename.txt, w)
for line in input_file:
I'd probably process it in larger chunks:
On Sat, 22 May 2010 17:16:40 -0700, Lanny wrote:
Ideally roomlist['start_room'].exits would equal {'aux_room' : 'west',
'second_room' : 'north'} but it doesn't. Sorry if this is unclear or too
long, but I'm really stumped why it is giving bad output
Just to condense a point which the other
On Fri, 14 May 2010 18:38:55 -0400, J wrote:
someone smarter than me can correct me, but file.write() will write when
it's buffer is filled, or close() or flush() are called.
And, in all probability, seek() will either flush it immediately or cause
the next write() to flush it before writing
On Tue, 11 May 2010 18:31:03 -0700, Paul Rubin wrote:
is called an equation rather than an assignment. It declares x is
equal to 3, rather than directing x to be set to 3. If someplace else
in the program you say x = 4, that is an error, normally caught by
the compiler, since x cannot be
On Thu, 13 May 2010 12:29:08 +1200, Lawrence D'Oliveiro wrote:
Some people would prefer to have a manageable set of rules rather than
having to remember the results of all of the possible combinations of
interactions between language features.
What are you accusing Python of, exactly?
I'm
On Fri, 14 May 2010 10:50:49 -0400, J wrote:
someone smarter than me can correct me, but file.write() will write when
it's buffer is filled, or close() or flush() are called.
And, in all probability, seek() will either flush it immediately or cause
the next write() to flush it before writing
On Tue, 11 May 2010 17:48:41 +1200, Lawrence D'Oliveiro wrote:
I was working with regex on a very large text, really large but I have
time constrained.
“Fast regex” is a contradiction in terms.
Not at all. A properly-written regexp engine will be limited only by
memory bandwidth, provided
On Tue, 11 May 2010 07:36:30 -0700, Paul Rubin wrote:
Offhand I can't tell that imperative and procedural mean something
different. Both basically mean that the programmer specifies a series of
steps for the computer to carry out. Functional languages are mostly
declarative; for example, an
On Tue, 11 May 2010 23:13:10 +1200, Lawrence D'Oliveiro wrote:
But the beauty is that Python is multi-paradigm ...
The trouble with “multi-paradigm” is that it offends the zealots on
all sides.
Is that how you view people who like languages to exhibit a degree of
consistency? Some people
On Tue, 11 May 2010 00:24:22 +1200, Samuel Williams wrote:
Is Python a functional programming language?
Not in any meaningful sense of the term.
Is this a paradigm that is well supported by both the language syntax and
the general programming APIs?
No.
I heard that lambdas were limited to
On Wed, 05 May 2010 02:41:09 +0100, Baz Walter wrote:
i think the algorithm also can't guarantee the intended result when
crossing filesystem boundaries. IIUC, a stat() call on the root directory
of a mounted filesystem will give the same inode number as its parent.
Nope; it will have the
On Wed, 05 May 2010 13:23:03 +0100, Baz Walter wrote:
so
if several filesystems are mounted in the same parent directory, there is
no way to tell which of them is the right one.
The only case which would cause a problem here is if you mount the same
device on two different subdirectories of
On Thu, 06 May 2010 10:21:45 +1000, Cameron Simpson wrote:
Look at the st_rdev field (== the device holding this inode).
When that changes, you've crossed a mount mount point.
st_dev reports the device on which the inode resides.
st_rdev is only meaningul if the inode type is block device
On Tue, 04 May 2010 23:02:29 +1000, Charles wrote:
I am by no means an expert in this area, but what I think happens (and I
may well be wrong) is that the directory is deleted on the file system.
The link from the parent is removed, and the parent's link count is
decremented, as you observed,
On Tue, 04 May 2010 20:08:36 +1200, Gregory Ewing wrote:
except that Python objects can form a generalized graph, and Unix
filesystems are constrained to be a tree.
Actually I believe that root is allowed to create arbitrary hard links to
directories in Unix, so it's possible to turn the
On Mon, 03 May 2010 06:18:55 -0700, Chris Rebert wrote:
but how can python determine the
parent directory of a directory that no longer exists?
Whether or not /home/baz/tmp/xxx/ exists, we know from the very structure
and properties of directory paths that its parent directory is, *by
On Tue, 04 May 2010 14:36:06 +0100, Baz Walter wrote:
this will work so long as the file is in a part of the filesystem that can
be traversed from the current directory to the root. what i'm not sure
about is whether it's possible to cross filesystem boundaries using this
kind of technique.
On May 4, 2010, at 5:37 PM, pyt...@bdurham.com wrote:
Is there a way to exclusively lock a file to prevent other processes
from reading it while we have it open?
My environment is Python 2.6.4 (32-bit) under Windows, but I'm looking
for a cross-platform solution if that's possible.
Some
On Wed, 07 Apr 2010 18:25:36 -0700, Patrick Maupin wrote:
Regular expressions != Parsers
True, but lots of parsers *use* regular expressions in their
tokenizers. In fact, if you have a pure Python parser, you can often
get huge performance gains by rearranging your code slightly so that
On Fri, 26 Mar 2010 13:23:25 +, Harishankar wrote:
Have you people embraced Python 3.x or still with 2.5 or 2.6?
Still with 2.6, and probably will be indefinitely.
I use Python mostly for Unix scripting: the kind of task which would
traditionally have used Bourne shell. For that purpose,
New submission from Nobody/Anonymous:
body,#wrap{text-align:center;margin:0px;background-color:#FFFEF8;}/*...@tab Top
b...@section top b...@tip Choose a set of colors that look good with the colors
of your logo image or text
header.*/#header{background-color:#FFFEF8;margin:0px;/*...@editable
New submission from Nobody/Anonymous:
body,#wrap{text-align:center;margin:0px;background-color:#FFFEF8;}/*...@tab Top
b...@section top b...@tip Choose a set of colors that look good with the colors
of your logo image or text
header.*/#header{background-color:#FFFEF8;margin:0px;/*...@editable
New submission from Nobody/Anonymous:
body,#wrap{text-align:center;margin:0px;background-color:#FFFEF8;}/*...@tab Top
b...@section top b...@tip Choose a set of colors that look good with the colors
of your logo image or text
header.*/#header{background-color:#FFFEF8;margin:0px;/*...@editable
New submission from Nobody/Anonymous:
body,#wrap{text-align:center;margin:0px;background-color:#FFFEF8;}/*...@tab Top
b...@section top b...@tip Choose a set of colors that look good with the colors
of your logo image or text
header.*/#header{background-color:#FFFEF8;margin:0px;/*...@editable
New submission from Nobody/Anonymous:
body,#wrap{text-align:center;margin:0px;background-color:#FFFEF8;}/*...@tab Top
b...@section top b...@tip Choose a set of colors that look good with the colors
of your logo image or text
header.*/#header{background-color:#FFFEF8;margin:0px;/*...@editable
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