John Nagle writes:
> If you have 67 columns in a table, you may be approaching the
> problem incorrectly.
+1 SQL QotW, on basis of diplomacy.
The OP may need to learn about database normalisation
https://en.wikipedia.org/wiki/Database_normalization>.
--
\“Sane people have an appr
On 30 mai, 08:52, "ru...@yahoo.com" wrote:
> In python2, "\u" escapes are processed in raw unicode
> strings. That is, ur'\u3000' is a string of length 1
> consisting of the IDEOGRAPHIC SPACE unicode character.
>
> In python3, "\u" escapes are not processed in raw strings.
> r'\u3000' is a string
On 5/30/2012 6:57 PM, duncan smith wrote:
Hello,
I have been attempting to speed up some code by using an sqlite
database, but I'm not getting the performance gains I expected.
SQLite is a "lite" database. It's good for data that's read a
lot and not changed much. It's good for small data
Nicholas Fitzkee writes:
> I took a look at this, and I'm a little confused.
You and me both. I think ‘virtualenv’ is solving the wrong problem, but
it appears to be the best answer so far to the need you described.
> What am I missing?
You'll have to get an answer for that from someone who a
Steven D'Aprano writes:
> The destructor doesn't get called into the last reference is gone.
And it's important to note that the destructor doesn't get called
*immediately* that happens; rather, the destructor will be called *some
time after* the last reference to the object is gone.
In short:
On Wed, 30 May 2012 00:55:00 -0700, anntzer.lee wrote:
> from collections import *
> class C(object):
> def __iter__(self): pass
> def __contains__(self, i): pass
> def __len__(self): pass
> def __getitem__(self, i): pass
>
> issubclass(C, Mapping) => False
> [issubclass(C, cls) fo
On Wednesday, May 30, 2012 7:55:33 PM UTC-5, Ben Finney wrote:
> The consensus solution for this is ‘virtualenv’
> http://pypi.python.org/pypi/virtualenv>.
>
> It is so popular as a solution for the kinds of problems you describe
> that its functionality will come into core Python, as discussed i
Hello,
I have been attempting to speed up some code by using an sqlite
database, but I'm not getting the performance gains I expected.
The use case:
I have text files containing data which may or may not include a header
in the first line. Each line (other than the header) is a record,
On Wed, 30 May 2012 16:56:21 +, John Gordon wrote:
> In <6e534661-0823-4c42-8f60-3052e43b7...@googlegroups.com>
> "psaff...@googlemail.com" writes:
>
>> How do I force the memory for these soup objects to be freed?
>
> Have you tried deleting them, using the "del" command?
del doesn't actu
On 5/30/2012 6:19 PM, Matteo Landi wrote:
On May/28, Matteo Landi wrote:
Hi list,
recently I started to work on an application [1] which makes use of the Tkinter
module to handle interaction with the user. Simply put, the app is a text
widget displaying a file filtered by given criteria, with a
nfitz...@gmail.com writes:
> For various reasons, I would like to maintain multiple copies of
> python on my (Ubuntu 12.04) linux system. This is primarily for
> scientific software development; several modules require different
> configuration options than are installed on the 'vanilla' python
>
http://www.virtualenv.org/
You can install multiple versions of the python interpreter in ubuntu
without issue. You can use virtualenv to maintain different site
packages for whatever purposes you need.
Michael
On Wed, May 30, 2012 at 4:38 PM, wrote:
> Hi all,
>
> For various reasons, I would
On May/28, Matteo Landi wrote:
> Hi list,
> recently I started to work on an application [1] which makes use of the
> Tkinter
> module to handle interaction with the user. Simply put, the app is a text
> widget displaying a file filtered by given criteria, with a handy feature that
> the window i
On 5/30/12 6:59 PM, Benoît Bryon wrote:
Hi,
Hi Benoit
you should post this to the distutils SIG
Thank you
Here is a proposal about naming conventions around
packaging.
Main question is: would you accept it as a PEP?
Preliminary notes (not p
Hi all,
For various reasons, I would like to maintain multiple copies of python on my
(Ubuntu 12.04) linux system. This is primarily for scientific software
development; several modules require different configuration options than are
installed on the 'vanilla' python included in the Ubuntu di
Hi,
Here is a proposal about naming conventions around
packaging.
Main question is: would you accept it as a PEP?
Preliminary notes (not part of the proposal)
Before I start, here are some preliminary no
On May 30, 10:57 am, David Fanning wrote:
> Chuck writes:
>
> > I just downloaded Enthought Python, free version. I wanted all the
> > included packages, but I can't seem to find the correct directory to
> > install new Python modules. Does anybody have an idea? I am trying
> > to add Universal
On 5/30/12 4:05 PM, Chuck wrote:
I just downloaded Enthought Python, free version. I wanted all the
included packages, but I can't seem to find the correct directory to
install new Python modules. Does anybody have an idea? I am trying
to add Universal Feed Parser to Enthought. I have tried C
On 30 mai, 13:54, Thomas Rachel wrote:
> 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\
On 05/30/2012 10:46 AM, Terry Reedy wrote:
> On 5/30/2012 2:52 AM, ru...@yahoo.com wrote:
>> In python2, "\u" escapes are processed in raw unicode
>> strings. That is, ur'\u3000' is a string of length 1
>> consisting of the IDEOGRAPHIC SPACE unicode character.
>
> That surprised me until I rechec
In <6e534661-0823-4c42-8f60-3052e43b7...@googlegroups.com>
"psaff...@googlemail.com" writes:
> How do I force the memory for these soup objects to be freed?
Have you tried deleting them, using the "del" command?
--
John Gordon A is for Amy, who fell down the stairs
gor...@pa
On 30.05.12 14:54, Thomas Rachel wrote:
There is a 3rd one: use r'[ ' + '\u3000' + ']'. Not very nice to read,
but should do the trick...
Or r'[ %s]' % ('\u3000',).
--
http://mail.python.org/mailman/listinfo/python-list
On Wed, May 30, 2012 at 9:40 AM, Steven D'Aprano
wrote:
> On Wed, 30 May 2012 09:01:20 -0700, psaff...@googlemail.com wrote:
>
>> However, I've found that using guppy, after the methods have returned
>> most of the memory is being taken up with BeautifulSoup objects of one
>> type or another. I'm
On 5/30/2012 11:05 AM, Chuck wrote:
I just downloaded Enthought Python, free version. I wanted all the
included packages, but I can't seem to find the correct directory to
install new Python modules. Does anybody have an idea? I am trying
to add Universal Feed Parser to Enthought. I have trie
On Wed, 30 May 2012 07:51:32 -0700, marctbg wrote:
> I just created an account to contribute to the wiki.python.org Python
> Decorator Library Wiki. I added my code titled == Memoize Objects ==
> using the Wiki editor. The preview looked good. Then i submitted it.
> However, it is not showing
On 5/30/2012 2:52 AM, ru...@yahoo.com wrote:
In python2, "\u" escapes are processed in raw unicode
strings. That is, ur'\u3000' is a string of length 1
consisting of the IDEOGRAPHIC SPACE unicode character.
That surprised me until I rechecked the fine manual and found:
"When an 'r' or 'R' pre
On Wed, 30 May 2012 09:01:20 -0700, psaff...@googlemail.com wrote:
> However, I've found that using guppy, after the methods have returned
> most of the memory is being taken up with BeautifulSoup objects of one
> type or another. I'm not declaring BeautifulSoup objects anywhere else.
What's gupp
I am writing a screen scraping application using BeautifulSoup:
http://www.crummy.com/software/BeautifulSoup/
(which is fantastic, by the way).
I have an object that has two methods, each of which loads an HTML document and
scrapes out some information, putting strings from the HTML documents i
Chuck writes:
>
> I just downloaded Enthought Python, free version. I wanted all the
> included packages, but I can't seem to find the correct directory to
> install new Python modules. Does anybody have an idea? I am trying
> to add Universal Feed Parser to Enthought. I have tried C:\Python
On 05/30/2012 05:54 AM, Thomas Rachel wrote:
> 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\u30
I just downloaded Enthought Python, free version. I wanted all the
included packages, but I can't seem to find the correct directory to
install new Python modules. Does anybody have an idea? I am trying
to add Universal Feed Parser to Enthought. I have tried C:\Python27,
C:\Python27\Lib, C:\Pyt
I just created an account to contribute to the wiki.python.org Python
Decorator Library Wiki. I added my code titled == Memoize Objects ==
using the Wiki editor. The preview looked good. Then i submitted
it. However, it is not showing up on the Wiki. I could not find
contact info for the maint
On 30 May 2012 12:54, Thomas Rachel
wrote:
> There is a 3rd one: use r'[ ' + '\u3000' + ']'. Not very nice to read, but
> should do the trick...
You could even take advantage of string literal concatenation:)
r'[' '\u3000' r']'
--
Arnaud
--
http://mail.python.org/mailman/listinfo/python
On Wed, May 30, 2012 at 2:52 AM, ru...@yahoo.com wrote:
> Was there a reason for dropping the lexical processing of
> \u escapes in strings in python3 (other than to add another
> annoyance in a long list of python3 annoyances?)
>
> And is there no choice for me but to choose between the two
> poo
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
Hello.
Hoping that someone can shed some light on a tiny challenge of mine.
Through ctypes I'm calling a c DLL which requires me to implement a callback in
Python/ctypes.
The signature of the callback is something like
void foo(int NoOfElements, char Elements[][100])
How do I possible impleme
Am 30.05.2012 05:09, schrieb Paul Rubin:
> Kind of a long shot, but are there known problems in calling PIL from
> multiple threads? I'm getting weird intermittent core dumps from my
> app, no idea what's causing them, but PIL is the only C module I'm
> using, and I do see some mention on the inte
anntzer@gmail.com wrote:
> from collections import *
> class C(object):
> def __iter__(self): pass
> def __contains__(self, i): pass
> def __len__(self): pass
> def __getitem__(self, i): pass
> issubclass(C, Mapping) => False
> [issubclass(C, cls) for cls in Mapping.__mro__] =>
from collections import *
class C(object):
def __iter__(self): pass
def __contains__(self, i): pass
def __len__(self): pass
def __getitem__(self, i): pass
issubclass(C, Mapping) => False
[issubclass(C, cls) for cls in Mapping.__mro__] => [False, True, True, True,
True]
i.e. C does
On Tue, May 29, 2012 at 9:33 AM, Scott Siegler wrote:
> Hello,
>
> I have a surface that I load an image onto. During a collision I would like
> to clear out the images of both surfaces that collided and show the score.
> Is there a function call to clear a surface with an image?
>
> One way I
On 5/30/2012 1:52 AM, ru...@yahoo.com wrote:
> Was there a reason for dropping the lexical processing of
> \u escapes in strings in python3 (other than to add another
> annoyance in a long list of python3 annoyances?)
To me, this would be a Python 2 annoyance since I would expect r'\u3000'
to be li
In python2, "\u" escapes are processed in raw unicode
strings. That is, ur'\u3000' is a string of length 1
consisting of the IDEOGRAPHIC SPACE unicode character.
In python3, "\u" escapes are not processed in raw strings.
r'\u3000' is a string of length 6 consisting of a backslash,
'u', '3' and th
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