On Sat, Feb 11, 2006, Joal Heagney wrote:
>Alan G wrote:
>>> I've been using MySQL up this day, but would like to convert
>>> my program to use Postgresql.
>>
>> I'm curious. Why?
>> Is there some advantage to Postgres over MySql?
>
>Yes and no. Postgresql offers more features and is IMO more fl
On Wed, 08 Feb 2006 03:08:25 -0500, "Raymond Hettinger" <[EMAIL PROTECTED]>
wrote:
>[Smith]
>>I just ran into a curious behavior with small floating points, trying to
>>find the limits of them on my machine (XP). Does anyone know why the '0.0'
>>is showing up for one case below but not for the
Paul Kraus wrote:
> Which editors does everyone use and why. Please keep the discussion to IDE's
> rather then any editors. I am well versed on Emacs and VI so anything beyond
> them would be appreciative. Why you like the editor and how it helps reduce
> your development time would be productiv
Alan G wrote:
>> I've been using MySQL up this day, but would like to convert
>> my program to use Postgresql.
>
> I'm curious. Why?
> Is there some advantage to Postgres over MySql?
Yes and no. Postgresql offers more features and is IMO more flexible
than most SQL servers out there.
Example:
On Fri, 10 Feb 2006, Carroll, Barry wrote:
> Another book I have just found that may turn out useful is "Python
> Programming Patterns" by Thomas W. Christopher, published by Prentice
> Hall PTR.
I got that from the library about a year ago. I found it interesting, but
not too helpful. One pr
It's the Python Essential Reference book, Third Edition due out February
24.
I'm not aware of a new Nutshell coming out.
On Fri, 10 Feb 2006 [EMAIL PROTECTED] wrote:
> See I couldn't tell if he was talking about the Nutshell book or the Python
> Essential Reference book...thanks
> Carl
>
>
On Fri, 2006-02-10 at 12:42 -0800, Carroll, Barry wrote:
> I seem to recall reading somewhere that it is possible to concurrently
> generate the index and value of a string’s characters in a single for
> statement. Is this true or did imagine it?
>
>
>
> Here is the scenario:
>
>
>
> Given
| 3. cannonical matrix representation? (Mike Cheponis)
|
| What's the best way to represent a matrix M with 4 dimensions, such
| as M[x][y][z][t] where each element in the sparse matrix could be a
| simple number, or could be an executable Python function snipped that
| returns a value when that
On Thu, 2006-02-09 at 09:45 +, Alan Gauld wrote:
>
> Define easier :-)
>
Right!
> You could just use string slicing and a stepsize of 3 in range:
>
> lst = [mystring[index : index+3] for index in range(0,len(mystring),3)]
>
Ever since I found them, list comprehensions are my favorites.
Aha!!!
I believe this is what I was looking for in the first place (not that I
will use it anyway, given the alternatives provided by others).
I guess that coming from a Perl background, which as you know includes
regexes as part of the core language, you tend to look to all solutions
through this
WOW!!
This is really great. Thanks Ken.
This first one is definitely going to my personal scripts directory ;-)
Victor
On Thu, 2006-02-09 at 05:56 -0500, Kent Johnson wrote:
> Victor Bouffier wrote:
> > Hi to all,
> >
> > I'd like to split a long string into equally long strings (len(str) =
>
Hi Danny:
Thanks!
tim
(who_should_have_read_the_docs)
* Danny Yoo <[EMAIL PROTECTED]> [060210 13:56]:
> > I'd like to do the following
> > while(1):
> > try:
> > reader.next() ## csv object method
> > except cvs._csv.Error: ## or something like this
> > print "bad csv
> generate the index and value of a string's characters in a single for
> statement. Is this true or did imagine it?
>>> for i,c in enumerate('fred'): print i,c
...
0 f
1 r
2 e
3 d
Like that?
Alan G.
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> p.s. This seems to me like it ought to be built into the base language
> - multidimensional object arrays.
The only languages I know that truly support anything like what you
want are programmes like Mathematica and arguably MS Excel
Basic...
There is a pseudo mathematica somewhere in Pytho
> I'd like to do the following
> while(1):
> try:
> reader.next() ## csv object method
> except cvs._csv.Error: ## or something like this
> print "bad csv record, skipping "
> continue
> except StopIteration:
> break
>
> The problem is that python do
On 2/10/06, Mike Cheponis <[EMAIL PROTECTED]> wrote:
> What's the best way to represent a matrix M with 4 dimensions, such as
> M[x][y][z][t] where each element in the sparse matrix could be a simple
> number, or could be an executable Python function snipped that returns a
> value when that cel
Adam,
That is super! Just what I was looking for. Thanks!
And whaddya know? There it is in the Python 2.3 Library reference, section 2.1!
Regards,
Barry
[EMAIL PROTECTED]
541-302-1107
"Never trust anything that can think for itself
if you can't see where it keeps i
Hello:
I'm using the csv module, and resources are imported as in
import csv
My exception trapping uses
etype, value, tb = sys.exc_info()
and I'm getting the following
value = "newline inside string"
type = "_csv.Error"
I would like to proceed with the assumption for now that this
error should no
I wrote a little program that replaces all files called 'abcde' with the file in the directory from which you riun the program. However it does not find them (there is another one). What have I done wrong :- #this program copies the file x to all other places in the directory. #however it does not
Here's a list comprehension which does it:>>> print [(i, ord(v)) for i, v in enumerate("abcdefg")][(0, 97), (1, 98), (2, 99), (3, 100), (4, 101), (5, 102), (6, 103)]and a for loop:
>>> for i, v in enumerate("abcdefg"):... tuplseq.append((i, ord(v)))...>>> tuplseq[(0, 97), (1, 98), (2, 99), (3,
Try with Python Card. ; )-- Edgar A. Rodriguez V.
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I seem to recall reading somewhere that it is possible to concurrently
generate the index and value of a string’s characters in a single for
statement. Is this true or did imagine it?
Here is the scenario:
Given an ASCII string of arbitrary length and content, generate
a sequence o
> So, could some give me a pointer to possible solutions ? Do I have to
> make the last part of my program a seperate program and go through a
> system call ?
Hi,
I have had this problem before. The timeout problem with Apache remains
because STDOUT of both child and the parent are open. Apac
I think you need to close the IO streams before forking the child process.
Something like
sys.stdout.flush()
sys.stdout.close()
sys.stdin.close()
sys.stderr.close()
os.close(0)
os.close(1)
os.close(2)
This is probably not the best way, but it works for me.
Beilin Zha
What's the best way to represent a matrix M with 4 dimensions, such as
M[x][y][z][t] where each element in the sparse matrix could be a simple number,
or could be an executable Python function snipped that returns a value when
that cell is evaluated?
The user of the program will type in Python
Greetings:
I have been programming in Python for about a year. We use Python 2.3;
we haven't migrated to 2.4 because the Real-time OS we use in our test
systems doesn't yet support it. I have the four O'Reilly 'standards' as
well ("Nutshell", "Learning", "Cookbook", and "Programming"). I use
"N
Thanks for the info.../sigh well I shall be waiting with bells onCarlOn 2/10/06, Kent Johnson <[EMAIL PROTECTED]
> wrote:nephish wrote:> yeah, one of the guys that posted earlier mentioned late feb as a
> release of the new one. i think i am going to go ahead and get the> cookbook now, and then pic
Hello,
I need some pointers in the right direction for the following problem:
I have a cgi script which reads in some form elements, uses them to
compose an SQL query, sends that query to the postgresql backend, writes
the results into a temporary file and sends a mail to the user with the
lin
Hi Kent and John,
Thanks a lot for the advice on how to improve my program. I will look
into separating the data and model as John suggests here. I didn't know
about after_idle() and after(); seems that dir()'ing the classes
sometimes gives out a lot more information than you can chew at any
g
nephish wrote:
> yeah, one of the guys that posted earlier mentioned late feb as a
> release of the new one. i think i am going to go ahead and get the
> cookbook now, and then pick up the new nutshell later.
It's the third edition of Python Essential Reference that is due Feb 24.
Judging from hi
See I couldn't tell if he was talking about the Nutshell book or the Python Essential Reference book...thanksCarlOn 2/10/06, nephish <
[EMAIL PROTECTED]> wrote:yeah, one of the guys that posted earlier mentioned late feb as a
release of the new one. i think i am going to go ahead and get thecookboo
yeah, one of the guys that posted earlier mentioned late feb as a
release of the new one. i think i am going to go ahead and get the
cookbook now, and then pick up the new nutshell later.
sk
On Fri, 2006-02-10 at 09:56 -0600, [EMAIL PROTECTED] wrote:
> Isn't there supposed to be a new edition of t
Isn't there supposed to be a new edition of the Nutshell book coming out? I was kinda hanging back for that one...Carl Badgley
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John Fouhy wrote:
> If you want to do multithreaded programming with a GUI, one good way
> is to use .after_idle.
>
> ie, instead of myturns.insert(str(i)), do
> top.after_idle(myturns.insert, str(i)) (I think this is the right
> syntax). This will cause the mainloop thread to run the code inste
Hugo González Monteverde wrote:
> Hi All,
>
> I wrote a small turn delivering graphical app that is supposed to
> display turns in a queue.
> def insert(self, turn_string):
> """Insert a new turn into the queue, move the rest upwards,
> delete oldest."""
This is overly complicate
Alan Gauld wrote:
>> It's worse than that - with MI if you call __init__() explicitly and
>> the base classes call super().__init__(), one of the base class
>> __init__() methods will be called twice. See
>> http://fuhm.net/super-harmful/ for an example.
>>
>
> Excellent link Kent. This just hi
> It's worse than that - with MI if you call __init__() explicitly and the
> base classes call super().__init__(), one of the base class __init__()
> methods will be called twice. See http://fuhm.net/super-harmful/ for an
> example.
>
Excellent link Kent. This just highlights how woefully inade
Alan Gauld wrote:
> Having said that I still don't like that mechanism since it makes the
> behaviour of the subclass depend on the implementation of the
> superclass. That is, if I choose to create a sub class of someone elses
> class then a call to super will only work if the other person has
Hi,
I would like to make a combobox with a list of strings, but I have many
problems with it. I know how to make the combobox and how to add
strings, but is it possible to get a list of strings from the combobox
and also is it possible to update the combobox with a list of strings?
(something lik
What about It's an Editor based on wxPython. NewEdit uses Mixin and
Plugin technique as its architecture. Most of its classes can be
extended via mixin and plugin components, and finally become an
integrity class at creating the instance. So NewEdit is very dynamic.
You can write the new featur
> That tracks my feelings. I don't find "Programming Python" to be very
> useful. It's not the sort of reference book that, say, "Programming Perl"
>
> hasten to add, I've seen enough people swear how much they love that book,
> that this may just be idiosyncratic to me.)
One thing to note
> Works for me. Each class must call super(...).__init__(). The first arg
> >>> class A(object):
> ... def __init__(self):
> ... print 'A.__init__()'
> ... super(A, self).__init__()
> ...
> >>> class B(object):
> ... def __init__(self):
> ... print 'B.__init__()'
> ...
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