Am 09.05.2013 02:38 schrieb Colin J. Williams:
On 08/05/2013 4:20 PM, Roy Smith wrote:
"A list of FooEntry's" +1
Go back to school. Both of you...
That is NOT the way to build a plural form...
Thomas
--
http://mail.python.org/mailman/listinfo/python-list
Am 10.05.2013 15:22 schrieb Roy Smith:
That's correct. But, as described above, the system makes certain
guarantees which allow me to reason about the existence or non-existence
os such entries.
Nevertheless, your 37 is not a FD yet.
Let's take your program:
#include
#include
#include
#
Am 27.05.2013 02:14 schrieb Carlos Nepomuceno:
pipes usually consumes disk storage at '/tmp'.
Good that my pipes don't know about that.
Why should that happen?
Thomas
--
http://mail.python.org/mailman/listinfo/python-list
Am 12.06.2013 03:46 schrieb Rick Johnson:
On Tuesday, June 11, 2013 8:25:30 PM UTC-5, nagia@gmail.com wrote:
is there a shorter and more clear way to write this?
i didnt understood what Rick trie to told me.
My example included verbatim copies of interactive sessions within the Python
co
Am 18.06.2012 01:48 schrieb Paul Rubin:
Steven D'Aprano writes:
/dev/urandom isn't actually cryptographically secure; it promises not to
block, even if it has insufficient entropy. But in your instance...
Correct. /dev/random is meant to be used for long-lasting
cryptographically-significant
Am 21.06.2012 13:25 schrieb John O'Hagan:
But what about a generator?
Yes, but...
def some_func():
arg = big_calculation()
while 1:
i = yield
(do_something with arg and i)
some_gen = some_func()
some_gen.send(None)
for i in lots_of_items:
some_gen.send(i)
Am 23.07.2012 16:50 schrieb Stone Li:
I'm totally confused by this code:
Code:
a = None
b = None
c = None
d = None
x = [[a,b],
[c,d]]
e,f = x[1]
print e,f
c = 1
d = 2
print e,f
e = 1
f = 2
print c,d
Output:
None None
None N
Am 23.07.2012 17:59 schrieb Steven D'Aprano:
>> Before you
get a language that uses full Unicode, you'll need to have fairly
generally available keyboards that have those keys.
Or at least keys or key combinations for the stuff you need, which might
differ e. g. with the country you live in.
Am 24.07.2012 09:47 schrieb Ulrich Eckhardt:
[0] Note that in almost all cases, when referring to a tag, Python
implicitly operates on the object attached to it. One case (the only
one?) where it doesn't is the "del" statement.
The del and the =, concerning the left side.
But even those don't
Am 04.08.2012 11:10 schrieb Stefan Behnel:
As long as you don't use any features of the Cython language, it's plain
Python. That makes it a Python compiler in my eyes.
Tell that the C++ guys. C++ is mainly a superset of C. But nevertheless,
C and C++ are distinct languages and so are Python a
Am 19.08.2012 00:14 schrieb MRAB:
Can someone who is more familiar with the cycle detector and cycle
breaker, help prove or disprove the above?
In simple terms, when you create an immutable object it can contain
only references to pre-existing objects, but in order to create a cycle
you need t
Am 12.09.2012 04:28 schrieb j.m.dagenh...@gmail.com:
I'm trying to call SetName on an object to prevent me from ever having to call
it explictly again on that object. Best explained by example.
def setname(cls):
'''this is the proposed generator to call SetName on the object'''
try:
Am 11.09.2012 05:46 schrieb Steven D'Aprano:
Good for you. (Sorry, that comes across as more condescending than it is
intended as.) Monkey-patching often gets used for quick scripts and tiny
pieces of code because it works.
Just beware that if you extend that technique to larger bodies of code,
[Sorry, my Firefox destroyed the indent...
Am 14.09.2012 22:29 schrieb Terry Reedy:
In other words
def make_wrapper(func, param):
def wrapper(*args, **kwds):
for i in range(param):
func(*args, **kwds)
return wrapper
def f(x): print(x)
f = make_wrapper(f, 2)
f('simple')
# is simpler, at least
Am 15.09.2012 18:20 schrieb Dan Katorza:
hello again friends,
thanks for everyone help on this.
i guess i figured it out in two ways.
the second one i prefer the most.
i will appreciate if someone can give me some tips.
thanks again
so...
---
Am 15.09.2012 16:18 schrieb 8 Dihedral:
The concept of decorators is just a mapping from a function
... or class ...
> to another function
... or any other object ...
> with the same name in python.
Thomas
--
http://mail.python.org/mailman/listinfo/python-list
Am 18.09.2012 15:03 schrieb David Smith:
I COULD break down each batch file and write dozens of mini python
scripts to be called. I already have a few, too. Efficiency? Speed is
bad, but these are bat files, after all. The cost of trying to work with
a multitude of small files is high, though, a
Am 19.09.2012 12:24 schrieb Pierre Tardy:
One thing that is cooler with java-script than in python is that dictionaries
and objects are the same thing. It allows browsing of complex hierarchical data
syntactically easy.
For manipulating complex jsonable data, one will always prefer writing:
b
Am 25.09.2012 03:47 schrieb Dwight Hutto:
But within a class this is could be defined as self.x within the
functions and changed, correct?
class a():
def __init__(self,a):
self.a = a
def f(self):
print self.a
def g(self):
Am 25.09.2012 04:37 schrieb Dwight Hutto:
I honestly could not care less what you think about me, but don't use
that term. This isn't a boys' club and we don't need your hurt ego
driving people away from here.
OH. stirrin up shit and can't stand the smell.
Where did he so?
Thoma
Am 25.09.2012 04:28 schrieb Steven D'Aprano:
By the way, the implementation of this is probably trivial in Python 2.x.
Untested:
class MyFile(file):
@property
def pos(self):
return self.tell()
@pos.setter
def pos(self, p):
if p< 0:
self.seek(p
Am 25.09.2012 00:37 schrieb Ian Kelly:
On Mon, Sep 24, 2012 at 4:14 PM, Chris Angelico wrote:
file.pos = 42 # Okay, you're at position 42
file.pos -= 10 # That should put you at position 32
foo = file.pos # Presumably foo is the integer 32
file.pos -= 100 # What should this do?
Since ints are
Am 25.09.2012 07:22 schrieb Dwight Hutto:
No, not really. If you wanna talk shit, I can reflect that, and if you
wanna talk politely I can reflect that. I go t attacked first.,
But not in this thread.
Some people read only selectively and see only your verbal assaults,
without noticing that
Am 25.09.2012 01:39 schrieb Dwight Hutto:
It's not the simpler solution I'm referring to, it's the fact that if
you're learning, then you should be able to design the built-in, not
just use it.
In some simpler cases you are right here. But the fact that you are able
to design it doesn't neces
Am 25.09.2012 10:13 schrieb Dennis Lee Bieber:
Or some bit setting registers, like on ATxmega: OUT = 0x10 sets bit 7
and clears all others, OUTSET = 0x10 only sets bit 7, OUTTGL = 0x10
toggles it and OUTCLR = 0x10 clears it.
Umpfzg. s/bit 7/bit 4/.
I don't think I'd want to work with
Am 25.09.2012 09:28 schrieb Steven D'Aprano:
The whole concept is incomplete at one place: self.seek(10, 2) seeks
beyond EOF, potentially creating a sparse file. This is a thing you
cannot achieve.
On the contrary, since the pos attribute is just a wrapper around seek,
you can seek beyond EOF
Am 25.09.2012 16:08 schrieb Peter Otten:
Jayden wrote:
In the Python Tutorial, Section 9.4, it is said that
"Data attributes override method attributes with the same name."
The tutorial is wrong here. That should be
"Instance attributes override class attributes with the same name."
I jum
Am 04.10.2012 03:58 schrieb Steven D'Aprano:
alist = [[None]*2400 for i in range(2400)]
from random import randrange
for i in range(1000):
x = randrange(2400)
y = randrange(2400)
adict[(x, y)] = "something"
alist[x][y] = "something"
The actual sizes printed will depend on h
Am 16.10.2012 15:51 schrieb Pradipto Banerjee:
I am trying to define class, where if I use a statement a = b, then instead of "a" pointing to the
same instance as "b", it should point to a copy of "b", but I can't get it right.
This is not possible.
Currently, I have the following:
Am 19.10.2012 21:03 schrieb Pradipto Banerjee:
Thanks, I tried that.
What is "that"? It would be helpful to quote in a reasonable way. Look
how others do it.
Still got MemoryError, but at least this time python tried to use the
physical memory. What I noticed is that before it gave me the e
Am 25.10.2012 01:39 schrieb Ian Kelly:
On Wed, Oct 24, 2012 at 5:08 PM, Paul Rubin wrote:
from itertools import dropwhile
j = dropwhile(lambda j: j in selected,
iter(lambda: int(random() * n), object()))
.next()
kind of ugly, makes me wish for a few more iterto
Am 25.10.2012 00:26 schrieb Cameron Simpson:
If I could write this as:
if re_FUNKYPATTERN.match(test_string) as m:
do stuff with the results of the match, using "m"
then some cascading parse decisions would feel a bit cleaner. Where I
current have this:
m = re_CONSTRUCT1.match(line
Am 25.10.2012 06:50 schrieb Terry Reedy:
Keep in mind that any new syntax has to be a substantial improvement in
some sense or make something new possible. There was no new syntax in
3.2 and very little in 3.3.
I would consinder this at least as new substantial than
yield_from it
as oppo
Am 25.10.2012 09:21 schrieb Thomas Rachel:
I think
# iterate ad inf., because partial never returns None:
i1 = iter(partial(randrange, n), None)
# take the next value, make it None for breaking:
i2 = (j if j in selected else None for j in i1)
# and now, break on None:
i3 = iter(lambda: next(i2
Am 25.10.2012 12:50 schrieb Steven D'Aprano:
Then I think you have misunderstood the purpose of "yield from".
Seems so. As I have not yet switched to 3.x, I haven't used it till now.
[quote]
However, if the subgenerator is to interact properly with the caller in
the case of calls to send(),
Am 25.10.2012 16:15 schrieb Grant Edwards:
I guess that depends on what sort of programs you write. In my
experience, EXPR is usually a read from a file/socket/pipe that
returns '' on EOF. If VAR is not '', then you process, then you
process it inside the loop.
Right. The same as in
if regex
Am 25.10.2012 18:36 schrieb Ian Kelly:
On Thu, Oct 25, 2012 at 1:21 AM, Thomas Rachel
wrote:
j = next(j for j in iter(partial(randrange, n), None) if j not in
selected)
This generator never ends. If it meets a non-matching value, it just skips
it and goes on.
next() only returns one value
Am 27.10.2012 06:48 schrieb Dennis Lee Bieber:
I don't know about the more modern calculators, but at least up
through my HP-41CX, HP calculators didn't do (binary) "floating
point"... They did a form of BCD with a fixed number of significant
/decimal/ digits
Then, what about sqrt(x)**
Am 26.10.2012 09:49 schrieb Ulrich Eckhardt:
Hi!
General advise when assembling strings is to not concatenate them
repeatedly but instead use string's join() function, because it avoids
repeated reallocations and is at least as expressive as any alternative.
What I have now is a case where I'm
Am 29.10.2012 16:20 schrieb andrea crotti:
Now on one hand I would love to use only immutable data in my code, but
on the other hand I wonder if it makes so much sense in Python.
You can have both. Many mutable types distinguish between them with
their operators.
To pick up your example,
Am 31.10.2012 06:39 schrieb Robert Miles:
For those of you running Linux: You may want to look into whether
NoCeM is compatible with your newsreader and your version of Linux.
This sounds as if it was intrinsically impossible to evaluate NoCeMs in
Windows.
If someone writes a software for
Am 09.11.2012 18:17 schrieb danielk:
I'm using this character as a delimiter in my application.
Then you probably use the *byte* 254 as opposed to the *character* 254.
So it might be better to either switch to byte strings, or output the
representation of the string instead of itself.
So d
Am 13.11.2012 14:21 schrieb wxjmfa...@gmail.com:
* strings are now proper text strings (Unicode), not byte strings;
Let me laugh.
Do so.
Thomas
--
http://mail.python.org/mailman/listinfo/python-list
Am 09.11.2012 02:12 schrieb Hans Mulder:
That's what 'xargs' will do for you. All you need to do, is invoke
xargs with arguments containing '{}'. I.e., something like:
cmd1 = ['tar', '-czvf', 'myfile.tgz', '-c', mydir, 'mysubdir']
first_process = subprocess.Popen(cmd1, stdout=subprocess.PIPE)
Am 12.11.2012 19:30 schrieb Hans Mulder:
This will break if there are spaces in the file name, or other
characters meaningful to the shell. If you change if to
xargsproc.append("test -f '%s/{}'&& md5sum '%s/{}'"
% (mydir, mydir))
, then it will only bre
Am 17.09.2012 04:28 schrieb Jadhav, Alok:
Thanks Dave for clean explanation. I clearly understand what is going on
now. I still need some suggestions from you on this.
There are 2 reasons why I was using self.rawfile.read().split('|\n')
instead of self.rawfile.readlines()
- As you have seen, t
Am 27.11.2012 19:00 schrieb Andrew:
I'm looking into os.popen and the subprocess module, implementing
os.popen is easy but i hear it is depreciating however I'm finding the
implemantation of subprocess daunting can anyone help
This is only the first impression.
subprocess is much more powerfu
Am 06.12.2012 09:49 schrieb Bruno Dupuis:
The point is Exceptions are made for error handling, not for normal
workflow. I hate when i read that for example:
try:
do_stuff(mydict[k])
except KeyError:
pass
I as well, but for other reasons (see below). But basically t
Am 11.12.2012 14:34 schrieb peter:
On 12/11/2012 10:25 AM, andrea crotti wrote:
Ah sure that makes sense!
But actually why do I need to move away from the current directory of
the parent process?
In my case it's actually useful to be in the same directory, so maybe
I can skip that part,
or othe
Am 07.01.2013 11:35 schrieb iMath:
what’s the difference between socket.send() and socket.sendall() ?
It is so hard for me to tell the difference between them from the python doc
so what is the difference between them ?
and each one is suitable for which case ?
The docs are your friend. See
Am 06.01.2013 15:30 schrieb Kurt Hansen:
Den 06/01/13 15.20, Chris Angelico wrote:
On Mon, Jan 7, 2013 at 1:03 AM, Kurt Hansen wrote:
I'm sorry to bother you, Chris, but applying the snippet with your
code in
Gedit still just deletes the marked, tab-separated text in the editor.
Ah, whoops.
Am 07.01.2013 18:56 schrieb Gertjan Klein:
(Watch out for line wraps! I don't know how to stop Thunderbird from
inserting them.)
Do "insert as quotation" (in German Thunderbird: "Als Zitat einfügen"),
or Strg-Shift-O. Then it gets inserted with a ">" before and in blue.
Just remove the > an
Am 11.01.2013 17:33 schrieb kwakukwat...@gmail.com:
def factorial(n):
if n<2:
return 1
f = 1
while n>= 2:
f *= n
f -= 1
return f
please it works.
I doubt this.
If you give n = 4, you run into an endless loop.
but don’t get why the ret
Am 15.01.2013 15:20 schrieb contro opinion:
>>> def deco(func):
... def kdeco():
... print("before myfunc() called.")
... func()
... print(" after myfunc() called.")
... return kdeco
...
>>> @deco
... def myfunc():
... print(" myfunc() called.")
...
Am 23.01.2012 22:48 schrieb M.Pekala:
Hello, I am having some trouble with a serial stream on a project I am
working on. I have an external board that is attached to a set of
sensors. The board polls the sensors, filters them, formats the
values, and sends the formatted values over a serial bus.
Hi,
I just added some RAM to my PC @ work and now wanted Python to be
capable to make use of it.
My boot.ini has been containing the /3GB switch for quite a while, but
nevertheless I only could allocate 2 GB in Python.
So I changed python.exe with the imagecfg.exe which I obtained from
htt
Am 24.01.2012 00:13 schrieb Thomas Rachel:
[sorry, my Thunderbird kills the indentation]
And finally, you can make use of re.finditer() resp.
sensorre.finditer(). So you can do
sensorre = re.compile(r'\$(.)(.*?)\$') # note the change
theonebuffer = '$A1234$$B-10$$C
Am 28.01.2012 11:19 schrieb pistacchio:
the following code (in the main thread) works well, I grep some files
and the search until the first 100 results are found (writing the
results to a file), then exit:
command = 'grep -F "%s" %s*.txt' % (search_string, DATA_PATH)
p = Popen(['/bin
Am 13.01.2012 13:30 schrieb Chris Angelico:
It seems there's a distinct difference between a+=b (in-place
addition/concatenation) and a=a+b (always rebinding),
There is indeed.
a = a + b is a = a.__add__(b), while
a += b is a = a.__iadd__(b).
__add__() is supposed to leave the original obje
Am 15.02.2012 14:52 schrieb Devin Jeanpierre:
On Wed, Feb 15, 2012 at 8:33 AM, Mel Wilson wrote:
The usual way to do what you're asking is
if __name__ == '__main__':
main()
goodbye()
and write main so that it returns after it's done all the things it's
supposed to do. If you've sprin
Am 23.02.2012 20:54 schrieb Jerry Hill:
If I recall
correctly, for directories, that's the number of entries in the
directory.
No. It is the number of subdirectories (it counts their ".." entries)
plus 2 (the parent directory and the own "." entry).
Even with that, it's hard to tell what
Am 15.03.2012 11:44 schrieb Kiuhnm:
Let's try that.
Show me an example of "list comprehensions" and "with" (whatever they are).
with open("filename", "w") as f:
f.write(stuff)
with lock:
do_something_exclusively()
Thomas
--
http://mail.python.org/mailman/listinfo/python-list
Am 15.03.2012 12:48 schrieb Kiuhnm:
On 3/15/2012 12:14, Thomas Rachel wrote:
Am 15.03.2012 11:44 schrieb Kiuhnm:
Let's try that.
Show me an example of "list comprehensions" and "with" (whatever they
are).
with open("filename", "w") as f:
f.writ
Hi,
I understand why contextlib.nested is deprecated.
But if I write a program for an old python version w/o the multiple form
of with, I have (nearly) no other choice.
In order to avoid the following construct to fail:
with nested(open("f1"), open("f2")) as (f1, f2):
(f1 wouldn't be cl
Am 25.03.2012 15:03 schrieb Tim Chase:
Perhaps a DB example
works better. With assignment allowed in an evaluation, you'd be able to
write
while data = conn.fetchmany():
for row in data:
process(row)
whereas you have to write
while True:
data = conn.fetchmany()
if not data:
Am 26.03.2012 00:59 schrieb Dennis Lee Bieber:
If you use the longer form
con = db.connect()
cur = con.cursor()
the cursor object, in all that I've worked with, does function for
iteration
I use this form regularly with MySQLdb and am now surprised to see that
this is optional according to
Am 01.04.2012 06:31 schrieb John Nagle:
In any case, this seems more appropriate for a Linux or a CentOS
newsgroup/mailing list than a Python one. Please do not reply to this
post in comp.lang.python.
-o
I expected that some noob would have a reply like that.
You are unable to provide appro
Am 02.04.2012 23:11 schrieb HoneyMonster:
One way:
import os
os.system ("cp src sink")
Yes. The worst way you could imagine.
Why not the much much better
from subprocess
subprocess.call(['cp', 'src', 'sink'])
?
Then you can call it with (really) arbitrary file names:
def call_cp(from, t
Am 03.04.2012 11:34 schrieb John Ladasky:
I use subprocess.call() for quite a few other things.
I just figured that I should use the tidier modules whenever I can.
Of course. I only wanted to point out that os.system() is an even worse
approach. shutils.copy() is by far better, of course.
--
Am 07.04.2012 14:23 schrieb andrew cooke:
class IntVar(object):
def __init__(self, value=None):
if value is not None: value = int(value)
self.value = value
def setter(self):
def wrapper(stream_in, thunk):
self.value = thunk()
retur
Am 16.04.2012 12:23 schrieb Kiuhnm:
I'd like to share a module of mine with the Python community. I'd like
to encourage bug reports, suggestions, etc...
Where should I upload it to?
Kiuhnm
There are several ways to do this. One of them would be bitbucket.
Thomas
--
http://mail.python.org/mai
Am 24.04.2012 08:02 schrieb rusi:
On Apr 23, 9:34 am, Steven D'Aprano wrote:
"is" is never ill-defined. "is" always, without exception, returns True
if the two operands are the same object, and False if they are not. This
is literally the simplest operator in Python.
Circular definition: In
Am 24.04.2012 15:25 schrieb rusi:
Identity, sameness, equality and the verb to be are all about the same
concept(s) and their definitions are *intrinsically* circular; see
http://plato.stanford.edu/entries/identity/#2
Mybe in real life language. In programming and mathematics there are
severa
Am 30.05.2012 08:52 schrieb ru...@yahoo.com:
This breaks a lot of my code because in python 2
re.split (ur'[\u3000]', u'A\u3000A') ==> [u'A', u'A']
but in python 3 (the result of running 2to3),
re.split (r'[\u3000]', 'A\u3000A' ) ==> ['A\u3000A']
I can remove the "r" prefix from
Am 18.06.2012 09:10 schrieb Prashant:
class Shape(object):
def __init__(self, shapename):
self.shapename = shapename
def update(self):
print "update"
class ColoredShape(Shape):
def __init__(self, color):
Shape.__init__(self, color)
self.color =
Am 03.06.2011 08:28 schrieb Claudiu Popa:
Hello guys,
While working at a dispatcher using
multiprocessing.connection.Listener module I've stumbled upon some
sortof magic trick that amazed me. How is this possible and
what does multiprocessing library doing in backg
Am 03.06.2011 08:59 schrieb Chris Angelico:
I don't know how effective the pickling of functions actually is.
Someone else will doubtless be able to fill that in.
Trying to do so, I get (with several protocol versions):
>>> import pickle
>>> pickle.dumps(pickle.dumps)
'cpickle\ndumps\np0\n.'
Am 03.06.2011 01:43 schrieb Gregory Ewing:
It's not the lambda that's different from other languages,
it's the for-loop. In languages that encourage a functional
style of programming, the moral equivalent of a for-loop is
usually some construct that results in a new binding of the
control variab
Am 01.06.2011 20:42 schrieb Tobiah:
I'm grabbing two fields from a MySQLdb connection.
One is a date type, and one is a time type.
So I put the values in two variables and print them:
import datetime
date, time = get_fields() # for example
print str(type(date)), str((type(time)))
print str(date
Am 04.06.2011 20:27 schrieb TommyVee:
I'm using the SimPy package to run simulations. Anyone who's used this
package knows that the way it simulates process concurrency is through
the clever use of yield statements. Some of the code in my programs is
very complex and contains several repeating se
Am 08.06.2011 07:12 schrieb nazmul.is...@gmail.com:
I need to call a python function from a Matlab environment. Is it
possible?
Let's assume, I have the following python code:
def squared(x):
y = x * x
return y
I want to call squared(3) from Matlab workspace/code and get 9.
Thanks f
Am 08.06.2011 09:19 schrieb Adam Przybyla:
nazmul.is...@gmail.com wrote:
I need to call a python function from a Matlab environment. Is it
possible?
Let's assume, I have the following python code:
def squared(x):
y = x * x
return y
I want to call squared(3) from Matlab workspace/code
Am 08.06.2011 11:13 schrieb Robin Becker:
we have been using base62 ie 0-9A-Za-z just to reduce the name length.
Ugly concerning calculation. Then maybe better use radix32 - 0..9a..v,
case-insensitive.
Thomas
--
http://mail.python.org/mailman/listinfo/python-list
Am 11.06.2011 03:02 schrieb Gabriel Genellina:
Perhaps those names make sense in your problem at hand, but usually I try
to use more meaningful ones.
Until here we agree.
> 0 and O look very similar in some fonts.
That is right - but who would use such fonts for programming?
Thomas
--
htt
Am 28.06.2011 07:57 schrieb Andrew Berg:
I'm working on an audio/video converter script (moving from bash to
Python for some extra functionality), and part of it is chaining the
audio decoder (FFmpeg) either into SoX to change the volume and then to
the Nero AAC encoder or directly into the Nero
Am 30.06.2011 12:07 schrieb Daniel Franke:
Here, of course, the functions PyObjectFromRawPointer(void*) and void*
PyRawPointerFromPyObject(PyObject*) are missing. Is there anything
like this in the Python C-API? If not, how could it be implemented?
You could implement it as a separate class wh
Am 06.07.2011 07:54 schrieb Phlip:
Pythonistas:
Consider this hashing code:
import hashlib
file = open(path)
m = hashlib.md5()
m.update(file.read())
digest = m.hexdigest()
file.close()
If the file were huge, the file.read() would allocate a big string and
thrash memory. (Yes,
Am 10.07.2011 22:59 schrieb Littlefield, Tyler:
Hello all:
I'm working on a server that will need to parse packets sent from a
client, and construct it's own packets.
Are these packets sent as separate UDP packets or embedded in a TCP
stream? In the first case, you already have packets and onl
Am 12.07.2011 16:46 schrieb Billy Mays:
I want to make a generator that will return lines from the tail of
/var/log/syslog if there are any, but my function is reopening the file
each call
...
I have another solution: an object which is not an iterator, but an
iterable.
class Follower(objec
Am 13.07.2011 08:54 schrieb Andrew Berg:
BTW, I'll likely be sticking with Mercurial for revision control.
TortoiseHg is a wonderful tool set and I managed to get MercurialEclipse
working well.
In this case, I would recommend bitbucket.
Thomas
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Am 14.07.2011 21:46 schrieb Billy Mays:
I noticed that if a file is being continuously written to, the file
generator does not notice it:
Yes. That's why there were alternative suggestions in your last thread
"How to write a file generator".
To repeat mine: an object which is not an iterator
Am 15.07.2011 14:26 schrieb Billy Mays:
I was thinking that a convenient solution to this problem would be to
introduce a new Exception call PauseIteration, which would signal to the
caller that there is no more data for now, but not to close down the
generator entirely.
Alas, an exception thr
Am 15.07.2011 14:52 schrieb Billy Mays:
Also, in the python docs, file.next() mentions there
being a performance gain for using the file generator (iterator?) over
the readline function.
Here, the question is if this performance gain is really relevant AKA
"feelable". The file object seems to
Am 15.07.2011 16:42 schrieb Billy Mays:
A sentinel does provide a work around, but it also passes the problem
onto the caller rather than the callee:
That is right.
BTW, there is another, maybe easier way to do this:
for line in iter(f.readline, ''):
do_stuff(line)
This provides an ite
Am 16.07.2011 05:42 schrieb Steven D'Aprano:
You are right - it is a very big step for a very small functionality.
Or you can look at the various recipes on the Internet for writing tail-like
file viewers in Python, and solve the problem the boring old fashioned way.
It is not only about thi
Am 22.07.2011 08:59 schrieb Frank Millman:
My guess is that it is something to do with the console, but I don't
know what. If I get time over the weekend I will try to get to the
bottom of it.
I would guess that in the first case, python (resp. timeit.py) gets the
intended code for execution:
Am 22.07.2011 00:45 schrieb Terry Reedy:
Whether or not they are intended, the rationale is that lining up does
not work with proportional fonts.
Who on earth would use proportional fonts in programming?!
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Am 26.07.2011 17:19 schrieb Eldon Ziegler:
Is there a way to have the Python processor look only for bytecode
files, not .py files? We are seeing huge numbers of Linux audit messages
on production system on which only bytecode files are stored. The audit
subsystem is recording each open failure.
Am 27.07.2011 14:18 schrieb John Roth:
Two comments. First, your trace isn't showing attempts to open .py
files, it's showing attempts to open the Curses library in the bash
directory.
Of course. My goal was to show that the OP's "problem" is not a python
one, but occurs all over several prog
Am 28.07.2011 13:32 schrieb Karim:
Hello,
__all__ = 'api db input output tcl'.split()
or
__all__ = """
api
db
input
output
tcl
""".split()
for lazy boy ;o). It is readable as well.
What do you think?
Why not? But you could even do
class AllList(list):
"""list which can be called in or
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