ed an
off-by-one error myself. :)
Kindest regards.
Mark Lawrence.
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On 30/06/2010 23:30, Steven D'Aprano wrote:
[snips]
The rule against premature optimization doesn't just apply to *code*.
+1QOTW
Kindest regards.
Mark Lawrence.
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ion 0: ordinal not in range(128)
Use 'string-escape':
s=['\\n','\\xff','\\023']
for n in s: n.decode('string-escape')
...
'\n'
'\xff'
'\x13'
-Mark
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s own, but not in the main script. I
know it looks funny, but this should preserve the appropriate nesting
of things.
Certainly doesn't look at all correct to me.
Where else could I look to find this problem?
In a mirror? :)
Kindest regards.
Mark Lawrence.
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Just tested it in XP, it works.
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Have you run this and get your SystemError yet? :)
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Mark Lawrence
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r is fairly simple: it's
LL(1) (unlike C's, for example), so can be parsed with only 1 token of
lookahead.
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On Jul 4, 9:55 am, Mark Dickinson wrote:
> Why? If Python itself has no problem parsing this code, why should it
> be so difficult for editors? Python's grammar is fairly simple: it's
> LL(1) (unlike C's, for example), so can be parsed with only 1 token of
> looka
On 04/07/2010 22:05, Tobiah wrote:
foo.py:
import bar
bar.show_importer()
output:
'foo' or 'foo.py' or 'path/to/foo' etc.
Possible?
Thanks,
Tobiah
>>> import re
>>> re.__file__
'C:\\Python26\\lib\\re.pyc'
HTH.
Mark Lawrence.
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On 05/07/2010 00:25, Michael Torrie wrote:
On 07/04/2010 03:17 PM, Mark Lawrence wrote:
On 04/07/2010 22:05, Tobiah wrote:
foo.py:
import bar
bar.show_importer()
output:
'foo' or 'foo.py' or 'path/to/foo' etc.
Possible?
Thanks,
Tobiah
>>> imp
darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from cStringIO import StringIO
>>> import tokenize, token
>>> for tok in tokenize.generate_tokens(StringIO("print9.0").readline):
... print token.tok_name[tok[0]], tok[1]
...
NAME print9
NUMBER .0
ENDMARKER
--
Mark
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ngIO("print9.0").readline):
>
> print tokenize.tok_name[tok[0]], tok[1]
Ah yes; you're right. Thanks!
Mark
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_six_plus - sum # but it's closer to point_six
True
> my next question, why could i run
>
> print "%.66f" % ( sum )
>
> but not
>
> print "%.67f" % ( sum )
That's a historical artefact resulting from use of a fixed-length
buffer somewhere de
orted in any of your targets. Qi supports a compiler-compiler Qi-
YACC that allows you to write in BNF which makes this kind of project
much easier.
See
http://www.lambdassociates.org/Book/page404.htm
for an overview
Mark
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On Jul 8, 2:00 pm, Adam Skutt wrote:
> On Jul 8, 7:23 am, Mark Dickinson wrote:> On Jul 8,
> 11:58 am, Adam Skutt wrote:
>
> > > accurately. Moreover, in general, it's impossible to even round
> > > operations involving transcendental functions to an arbitr
On Jul 8, 3:29 pm, Adam Skutt wrote:
> On Jul 8, 9:22 am, Mark Dickinson wrote:
> > On Jul 8, 2:00 pm, Adam Skutt wrote:
> > > For some computations, the number of bits required to
> > > get the desired precision can quickly overwhelm the finite limitations
> >
n is not correctly rounded):
>
> Decimal('100.0') ** Decimal('-557.71e-74288')
Hmm. So it does. Luckily, this particular problem is easy to deal
with. Though I dare say that you have more up your sleeve. :)?
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On Jul 8, 9:52 pm, Wolfram Hinderer
wrote:
> JFTR, it works because a+b == a+b (while I don't think that a+b == b+a
> holds for all a and b).
Actually, that's one of the few identities that's safe. Well, for non-
NaN IEEE 754 floating-point, at any rate. And assuming that there's
no use of exte
On 19-6-2010 23:45, Shashwat Anand wrote:
Terry: Thanks for bringing this to notice.
Mark: Kudos for your effort in cleaning up bugs.python.org
Like I've said elsewhere, flattery will get you everywhere. :)
FYI there are now 480 orphans and I've managed to get 8 issues closed.
On my machine, I can go to a DOS shell, and type
myscript.py
This will cause the script to be run as a python script. So that bit
works.
On another machine, on which python was set up without admin
privileges, if I type
myscript.py
it will open the "Open With" dialog box. It wont let me exec
had a bad day and forgot to run the unit tests.
Kindest regards.
Mark Lawrence
p.s. Best of luck to the Dutch and Spanish Sunday evening in the World
Series Soccer!!!
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')
html += f.read()
page = {
'html' : html
}
the third-last item in the list is not a string, it's a function.
how do i test for that?
Check out the isinstance function here.
http://docs.python.org/library/functions.html
HTH.
Mark Lawrence
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n how you'd deal with any
backwards compatibility problems that your fix introduces.
Have you considered forking Python? That may be the way forward here.
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the cost of building empty tuples is an actual bottleneck.
+1
Kindest regards.
Mark Lawrence
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not deep thoughts.
Well said Steven, or is it Stephen, or Stephan, or Stefen, or what?
Kindest regards.
Mark Lawrence.
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so specify what
rounding mode you want (instead of relying on the default round-half-
away-from-zero in 2.x or round-half-to-even in 3.x.)
>>> decimal.Decimal('-9.85').quantize(decimal.Decimal('0.1'),
>>> rounding=decimal.ROUND_HALF_UP)
Decimal('-9.9
no
longer receiving bugfixes, so it's not going to change there.
> BTW: I'm tied to version 2.5 of python
Have you tried using pickle protocol 1 or 2, instead of pickle
protocol 0? That may well solve your problem. (Those
protocols write out the binary form of a float directly,
finitely a bug: please report it!)
With all this said, asking for *decimal* rounding of
*binary* approximations to *decimal* halfway cases to give
the results you expect is ... optimistic, to say the least.
Use the decimal module if you care about which way
your (almost) halfway cases get round
y would be thrown out. In the old
> days, yes we had service contracts for the machines, but it was
> essentially a joke. That was a way of getting parts after the expert
> hackers from the AI lab fixed the problem. Because if you let the
> field-service person fix it it would
rning is issued.
> i.e., in *both* cases, expl would get passed a double (which gets
> automatically cast into a long double),
But how on earth would ctypes *know* it's supposed to convert
(nitpick: not cast) to a long double? The function signature isn't
available to ctypes; it's only through you setting .argtypes
and .restype that ctypes knows anything about it.
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sue
tracker. The oldest open issue I've come across was dated 2001, and
there could be older. Unless more volunteers come forward, particularly
to do patch reviews or similar, the situation as I see it can only get
worse.
Kindest regards.
Mark Lawrence.
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tml#module-site
HTH.
Mark Lawrence
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com/bill_r/elf/html/elf-1-33.htm
I'm just envisaging a "Paper Tape Repairman" sketch.
Kindest regards.
Mark Lawrence.
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x27;t even be needed.
Regards,
Mick.
Boilerplate, boilerplate everywhere, but not a beer to drink.
Hope everyone at EuroPython is having a good time.
Kindest regards.
Mark Lawrence.
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g) becoming
.strip(set(string)), but it didn't occur to me until too late. :-(
Maybe 3.2 which is still in alpha, if not 3.3?
Kindest regards.
Mark Lawrence.
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othing because I read through gmane.comp.python.general.
Kindest regards.
Mark Lawrence.
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ng to distribute win32 extensions.
Thanks,
Malcolm
You probably want to use the windows ShellExec function with a 'print' verb.
Mark
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the use of the visitor pattern becomes more
and more questionable.
What is it I'm missing?
Karsten
I suggest you google for "python patterns alex martelli". From what I've
read, he's forgotten more about Python and/or patterns than most of us
will ever know.
HTH.
Mark Lawrence.
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ods would mostly be switched in.
If it were added and the switching were internal, new test cases would
be needed to test test timsort.
Does your radix sort meet the stability guarantee of list.sort?
Yes.
Great. There is, of course, a test for that in the suite.
Can I please book front row
will be good if the python communities get more
> people who like to write documentation.
>
> Anyway, thank you again.
>
I'll be on the Python issue tracker later today. I look forward to
seeing your first of many contributions to the "poor" Python
documentation. Pigs might fly? :)
Kindest regards.
Mark Lawrence.
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-py.aspx
HTH.
Mark Lawrence
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r the benefit of those who might have missed it, I'll repeat that I'm
reading this from gmane.comp.python.general and see little or no spam.
Regards.
Mark Lawrence.
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table :)] at filtering spam
than the diabolical google groups. I'm unsure as to how the main
mailing list that is given above works, I'm sure that someone more
knowledgable than myself will soon let us know.
Regards.
Mark Lawrence.
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string "AB" without the other stuff?
Thanks.
Whitespace in XML is significant. If the file was:
AB100
2
You would just read 'AB'. If you don't control the XML file, then:
print name.strip()
will remove leading and trailing whitespace.
-Mark
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x27;utf-8')
for line in infile:
outfile.write(line)
infile.close()
outfile.close()
As you can see, codecs.open takes a parameter for the encoding of the file.
Lines read are automatically decoded into Unicode; Unicode lines written are
automatically encoded into a byte stream.
-Mark
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That seems a bit harsh. Place, in general, isn't as useful as pack and grid.
Yelling at him for suggesting you use them is unnecessary. When I looked at
when your script generates, I don't see why you couldn't just use grid. I
can fairly easily see a grid layout. But, I guess it's supposed to be a
pec(dllexport) int __stdcall Callback(int a,CB cb)
{
g_cb = cb;
return 1;
}
__declspec(dllexport) void __stdcall ChangeLinkState(BYTE newState)
{
LINKSTATE state;
state.OldState = g_linkState;
state.NewState = newState;
g_linkState = newState;
g_cb(&state);
}
-Mark
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uters.
Windows users biggest allergy is to this strange world that involves
"make" on other boxes, whatever that is, it strikes me as rather
archaic. Personally I find double clicking on an msi file rather easier.
Regards.
Mark Lawrence.
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On 01/08/2010 07:50, Lawrence D'Oliveiro wrote:
In message, Mark
Lawrence wrote:
Personally I find double clicking on an msi file rather easier.
Easier than apt-get dist-upgrade?
I'm sorry but I only do English, could you please translate. :)
Mark Lawrence.
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On 01/08/2010 08:18, Lawrence D'Oliveiro wrote:
In message, Mark
Lawrence wrote:
On 01/08/2010 07:50, Lawrence D'Oliveiro wrote:
In message, Mark
Lawrence wrote:
Personally I find double clicking on an msi file rather easier.
Easier than apt-get dist-upgrade?
I'm sorr
On 01/08/2010 12:10, Lawrence D'Oliveiro wrote:
In message, Mark
Lawrence wrote:
On 01/08/2010 08:18, Lawrence D'Oliveiro wrote:
In message, Mark
Lawrence wrote:
On 01/08/2010 07:50, Lawrence D'Oliveiro wrote:
In message, Mark
Lawrence wrote:
Personally I find double cli
.
Mark Lawrence
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On 02/08/2010 07:15, Michele Simionato wrote:
On Jul 31, 5:08 am, Steven D'Aprano wrote:
I have read Michelle Simionato's articles on super in Python.
One "l" please! I am a man! ;-)
Please prove it, get your bits out!!! :)
M. Simionato
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On 02/08/2010 16:41, Benjamin Kaplan wrote:
On Mon, Aug 2, 2010 at 8:21 AM, Mark Lawrencewrote:
On 01/08/2010 12:10, Lawrence D'Oliveiro wrote:
In message, Mark
Lawrence wrote:
On 01/08/2010 08:18, Lawrence D'Oliveiro wrote:
In message, Mark
Lawrence wrote:
On 01/08/
On 02/08/2010 17:53, donn wrote:
On 02/08/2010 17:35, Mark Lawrence wrote:
aka the colon. :)
Ha. This is a case of the colon being the appendix!
\d
Is there a better newsgroup in the world than c.l.py? No!
Kindest regards.
Mark Lawrence.
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cid/amd64/linux-image-2.6.32-21-generic/filelist
http://mail.python.org/mailman/listinfo/python-list
This is all very well, but what is the unladen airspeed velocity of a
swallow in flight? Answers on a postcard please, given that I expect
both direction and speed!
Kindest regards.
the toilet so I can talk to the great white telephone.
Kindest regards.
Mark Lawrence.
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echnical content of this thread, but I'm very
pleased to see rantingrick being positive, well done!!! :) I know that
we've crossed swords in the past but believe that bygones should be
bygones. Can we call it quits and help to take Python forward?
Kindest regards.
Mark Lawrence.
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On 03/08/2010 00:03, Aahz wrote:
In article,
Peter wrote:
On Aug 3, 7:42=A0am, Mark Lawrence wrote:
On 02/08/2010 00:08, candide wrote:
I can't understand why any serious programmer mentions C++. As soon as I
read it, I have to rush either to the kitchen to find a bowl to throw up
i
inal report on Ariane 501 here:
http://www.di.unito.it/~damiani/ariane5rep.html
A bug is a bug is a bug?
Except in my code. Never written a bug in my life. Cross my heart and
hope to die. Of course I'm lying. :)
Kindest regards.
Mark Lawrence.
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"ben owen" wrote in message
news:[email protected]...
Hi everyone, I'm new to this and was needing help with trying to learn/work
with Python 2.7 on my computer. I'm running Windows 7 and trying to learn
python programming from an older book fr
e to package the object and inno installer or
similar to handle the install and uninstall parts.
Mark
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Hi all,
I have just released Shed Skin 0.5, an experimental (restricted) Python-to-C++
compiler. Please see my blog for more details about the release:
http://shed-skin.blogspot.com/
Thanks,
Mark Dufour.
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google?
Mark Lawrence.
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give unpredictable results in halfway cases. (E.g.,
round(2.675, 2) might give 2.68 or 2.67, depending on what version of
Python you're using, and also possibly depending on your platforms.)
--
Mark
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>
> 4858258098025923
>
> Possible?
See the float.as_integer_ratio method.
--
Mark
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files in the file list 'logs'?
Thank you,
Alex van der Spek
I'm not sure exactly what you're asking here. Could you a brief
description as to what you're trying to achieve, then put the question
again.
Cheers.
Mark Lawrence.
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me.strftime("%Y-%m-%d %H:%M:%S")
AttributeError: 'str' object has no attribute 'strftime'
NOTE: current_time prints within the function, line does not
HTH.
Mark Lawrence.
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On Aug 16, 8:08 pm, Jacky wrote:
> Hi Thomas,
>
> Thanks for your comments! Please check mine inline.
>
> On Aug 17, 1:50 am, Thomas Jollans wrote:
>
> > On Monday 16 August 2010, it occurred to Jacky to exclaim:
>
> > > Hi there,
>
> > > Recently I'm facing a problem to convert 4 bytes on an by
On Aug 16, 8:36 pm, Mark Dickinson wrote:
> On Aug 16, 8:08 pm, Jacky wrote:
> > My concern is that struct may need to parse the format string,
> > construct the list, and de-reference index=0 for this generated list
> > to get the int out.
>
> > There should be som
/
Cheers.
Mark Lawrence.
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er 0 team!
Unfortunately, we're stuck with this goofy numbering system in many
languages. Fortunately, the trend is away from explicit indexing and
toward "for" loops when possible.
Bring back Coral 66, all is forgiven.
http://www.xgc.com/manuals/xgc-c66-rm/x357.html
Cheers.
Mark Lawrence.
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then in
assert(expensive_check)
the argument expensive_check would be evaluated both with 'python' and
with 'python -O'.
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Mark
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on the real
underlying objects.
*But* C-level tp_compare slots only ever get called when both objects
have the same type, so when comparing a real object with the proxy for
that object, that's never.
In 3.x, that's replace with a proxy_richcompare function for the
tp_richcompare slot.
So my guess
On Aug 21, 5:06 pm, Nicholas Cole wrote:
> On Sat, Aug 21, 2010 at 3:31 PM, Mark Dickinson wrote:
>
> [SNIP]
>
> > So my guess is that the change was unintentional.
>
> > It's probably worth a bug report. Even if the behaviour isn't going
> > to c
:
>>> ssdf.loads(u'a = [0xffff**0x]')
Regards
Mark
http://blog.topicbranch.net/2010/08/ssdf-simple-structured-data-format.html
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"
\"C:\\Python31\\Lib\\idlelib\\idle.pyw\" -n -e \"%1\""
[HKEY_CLASSES_ROOT\Python.File\shell\Edit with Pythonwin3\command]
@="C:\\Python31\\Lib\\site-packages\\Pythonwin\\Pythonwin.exe /edit \"%1\""
[HKEY_CLASSES_ROOT\Python.File\shell\Open with Python3\command]
@="\"C:\\Python31\\python.exe\" \"%1\" %*"
---END---
-Mark
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On 25/08/2010 14:59, Carlos Grohmann wrote:
Hi all,
I'd like to hear from you on the benefits of using numpy.power(x,y)
over (x*x*x*x..)
I looks to me that numpy.power takes more time to run.
cheers
Carlos
Measure it yourself using the timeit module.
Cheers.
Mark Lawrence.
--
quot;rb")
content=f.read()
print repr(content)
print len(content)
print content.count("\\")
print content.count("x")
Try:
utf8data = content.decode('string-escape')
unicodedata = utf8data.decode('utf8')
gbkdata = unicodedata.encode('gbk
Hi
I wonder if someone could point me in the right direction. I used the
following code to access gmail but I got a
urllib2.URLError:
error when I ran it. I have included the Traceback
import twill, string, os
b=twill.commands.get_browser()
b.set_agent_string("Mozilla/5.0 (Windows; U; Wi
ack in September 2008, there was a 'MajorOS Vendor
(tm)'
who was interested in getting Python 2.6 into their next OS release,
provided that it (Python 2.6) was released by October 1st.
Make of that what you will.
Mark
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iss lots of possible values.
On the other hand, it's easy to find examples of a and b such that
random.uniform(a, b) has a significant chance of producing b.
For example, take a = 10**16, b = 10**16 + 4, then there's about a 1
in 4 chance of getting b. Or for a more extreme example, simply
take a = b. Hence the doc change.
Mark
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n the above would truncate, while the implicit
conversion from double to single precision involved in packing with
'f' is more likely to do a round-to-nearest.
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ncorrect? The documentation for random.uniform says:
"""Return a random floating point number N such that
a <= N <= b for a <= b and b <= N <= a for b < a."""
And that's precisely what it does. Nowhere does the documentation
say that *every* float
On Jun 10, 6:57 pm, Mensanator wrote:
> On Jun 10, 12:37 pm, Mark Dickinson wrote:
>
> > On Jun 10, 6:21 pm, Mensanator wrote:
>
> > > So, the 2.6.2 documentation is STILL wrong. Before it implied
> > > it was ALWAYS a semi-open interval, and now it says it'
ndom()), without worrying about the possibility of
taking log
of 0.
But I don't know why it would be useful to know that endpoints *are*
sometimes
included, without knowing exactly when.
Mark
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Robert Kern wrote:
> On 2009-06-10 14:46, Mark Dickinson wrote:
>> On Jun 10, 8:15 pm, Robert Kern wrote:
>>> On 2009-06-10 13:53, Terry Reedy wrote:
>>>> A full technical discussion does not below in the docs, in my opinion. A
>>>> wike article woul
Robert Kern wrote:
> On 2009-06-10 15:54, Mark Dickinson wrote:
>> [...] I'm not sure I'm capable of coming up with extra wording
>> for the docs that won't just cause more confusion, so I'll leave that
>> to someone else.
>
> I did make a
.6.2 (r262:71600, Jun 8 2009, 14:57:27)
[GCC 4.0.1 (Apple Computer, Inc. build 5367)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> '{0:032b}'.format(12345)
'001100111001'
Mark
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ums of objects like classes may and most likely do
> change when you restart the interpreter.
What he said. I remember at least one recent hash change: the
algorithm for computing the hash of a long is different in Python
2.5.x and Python 2.6.x.
Mark
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Table) (?:\(\w+\)|{\w+})')
testdata = '''\
RenderTable {TABLE}
RenderBlock (CENTER)
RenderBlock {CENTER}
RenderTable {TABLE) #shouldn't match
'''
print pat.findall(testdata)
---
Result:
['RenderTable
column "name" orders
ascending.
One way is to sort twice...sort on the secondary key first, then the primary
key. sort will maintain the order of equal entries.
-Mark
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gt; print(num)
> if num == 0 :
> break
>
> print('done')
>
> SyntaxError : invalid syntax ( pointing to end of break )
> [...]
Are you mixing tabs and spaces in your code at all? Check that the
'break' line is indented with 8 spaces rather than a tab character.
Mark
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; or some other blocking
function.
HTH,
Mark
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1/n else 1
Then for any 0 <= t <= 1, g_n(t) -> 0 as n -> infinity.
But the convergence isn't uniform: max_t(g_n(t)-0) = 1
for all n.
Maybe James is thinking of the standard theorem
that says that if a sequence of continuous functions
on an interval converges uniformly then its limit
is continuous?
Mark
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On Jun 17, 1:26 pm, Jaime Fernandez del Rio
wrote:
> On Wed, Jun 17, 2009 at 1:52 PM, Mark Dickinson wrote:
> > Maybe James is thinking of the standard theorem
> > that says that if a sequence of continuous functions
> > on an interval converges uniformly then its limit
f1|| = d/3,
||f3 - f2|| = d/9, ||f4 - f3|| = d/27, etc.
Hence, since sum_{i >= 0} d/(3^i) converges absolutely,
the sequence f0, f1, f2, ... converges *uniformly* to
a limiting function f : [0, 1] -> R^2 that parametrizes the
Koch curve. And since a uniform limit of uniformly continuous
fun
On Jun 17, 3:46 pm, Paul Rubin <http://[email protected]> wrote:
> Mark Dickinson writes:
> > It looks as though you're treating (a portion of?) the Koch curve as
> > the graph of a function f from R -> R and claiming that f is
> > uniformly continuous. Bu
On Jun 18, 7:26 pm, David C. Ullrich wrote:
> On Wed, 17 Jun 2009 08:18:52 -0700 (PDT), Mark Dickinson
> >Right. Or rather, you treat it as the image of such a function,
> >if you're being careful to distinguish the curve (a subset
> >of R^2) from its parametrization (
http://docs.python.org/library/string.html#formatstrings
If you're after the number and you *really* need to
be able to manipulate the *exact* value 0.04 in Python
(e.g., because you're doing financial work), you're probably
better off using the Decimal module:
http://docs.pyth
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