Hello,
I have been reading about python grammers for processing text files. Does
anyone have any simple examples?
Thanks
Never miss a thing. Make Yahoo your home page.
http://www.yahoo.com/r/hs
Woah. Either you're leaving out essential info, or python got a lot more
complicated.
Firstly, super returns all base classes. How? Does it return a tuple of
them, or a container object, or is this something horribly worse such as
syntactic sugar?
It doesn't make sense for it to return a tuple
On Thu, Mar 20, 2008 at 03:16:05PM -0600, Spencer Parker wrote:
I've interspersed a bunch of comments to show you how hard it has been
to read and understand your problem description. After going thru it I
think I understand the question.
Please in the future try to express the question more
This is Windows I presume?
Try:
cd\python25
python C:\Elliot\filename.py
But for windows you shouldn't have to. You can just double-click the file.
On the other hand, if you mean 'import' as it means in the context of the
actual python language, then you would put the line "import filename" at
Am Freitag, den 21.03.2008, 21:48 -0500 schrieb tiger12506:
Actually, super returns all base classes, all in it's own time.
Basically, every class has a member __mro__, that contains a
consistently ordered list of classes.
super needs the class from where it is being called to locate the right
I am as new as you can get to Python. I have just learned how to save my work
(very simple work of course). I created a folder on C:\ (in this case
C:\Elliot) for my work. I am able to use the cmd prompt to run it (cd \Elliot
-> C:\Elliot 'filename.py') however I cannot figure out how to import
>> class SubClass(BaseClass):
>> def __init__(self, t, *args, **kw):
>> super(SubClass, self).__init__(*args, **kw)
>> # do something with t
> Is there a proper way to handle the case when SubClass() is called using
> positional arguments, and you do not desire "t" to be at th
"Guba" <[EMAIL PROTECTED]> wrote
> >>> string1, string2, string3 = '', 'Trondheim', 'Hammer Dance'
> >>> non_null = string1 or string2 or string3
> >>> non_null
> 'Trondheim'
>
> How does this work?? How does Python know that we are looking for
> non_null? After all, we don't provide this informa
On Thu, Mar 20, 2008 at 03:16:05PM -0600, Spencer Parker wrote:
> I am trying to read a CSV file and the get that information into a MySQL
> database. I am able to do this, but I have a small problem. I have a piece
> of software that runs and each iteration is one like. It only runs once
> righ
On Thu, Mar 20, 2008 at 04:55:17PM -0700, jim stockford wrote:
> >>> string1, string2, string3 = '', 'Trondheim', 'Hammer Dance'
> >>> jackson = string1 or string2 or string3
> >>> jackson
> 'Trondheim'
The key here is the "or" operator which, in an expression like
a or b
will return a if
i'm guessing assignment, which actually associates
a reference, will skip referencing an identifier to a null
and will make the association (assignment) to the first
non-null value in the expression, which is string2 in
this case. that the identifier is non_null is immaterial;
you could write
Hi Spencer
Spencer Parker wrote:
> I have a
> piece of software that runs and each iteration is one like.
I don't understand what this means.
> It only
> runs once right now; there is only one line + the headers. I use the
> csv module to kill the headers and import the one line.
Does 'kill
Spencer Parker wrote:
> I am trying to read a CSV file and the get that information into a MySQL
> database. I am able to do this, but I have a small problem. I have a
> piece of software that runs and each iteration is one like. It only
> runs once right now; there is only one line + the hea
Dear list,
from Guido's tutorial:
It is possible to assign the result of a comparison or other Boolean
expression to a variable. For example,
>>> string1, string2, string3 = '', 'Trondheim', 'Hammer Dance'
>>> non_null = string1 or string2 or string3
>>> non_null
I am trying to read a CSV file and the get that information into a MySQL
database. I am able to do this, but I have a small problem. I have a piece
of software that runs and each iteration is one like. It only runs once
right now; there is only one line + the headers. I use the csv module to
ki
On Wednesday 19 March 2008 18:52, Dinesh B Vadhia wrote:
> Say because of performance, you might want to re-write/convert Python code
> to C++. What is the best way (or best practice) to do this wrt the tools
> available?
>
> Dinesh
You also might want to use some profiling tools, or skip that st
I hope I'm using this system correctly by just hitting reply-all in my
email client :s
Thanks very much Michael, I've been a bit thin on the other details I see.
My platform is Mac Os 10.4, I'm using USB snooper to get the data I
need, I'll post it at the end of this message.
Forgive me, I've b
"Dinesh B Vadhia" <[EMAIL PROTECTED]> wrote
> Say because of performance, you might want to re-write/convert
> Python code to C++. What is the best way (or best practice)
> to do this wrt the tools available?
It may be obvious but its worth noting that optimised Python may
be faster than a ba
If you need to rewrite Python code for performance, I'd recommend using
Pyrex/Cython. (www.cython.org).
It let's you get away with small changes to your code as a starter
(Cython is relative compatible syntax-wise with Python), and you can add
"C type annotations" as needed. (And no, C++ is not co
Kent Johnson wrote:
> One regex can split apart a numeric part and a non-numeric unit:
A little explanation:
> In [22]: import re
> In [23]: splitter = re.compile(r'(\d+)(\S+)')
The regex finds one or more digits \d+ followed by one or more
non-whitespace characters \S+. The parentheses define
"Kent Johnson" <[EMAIL PROTECTED]> wrote
> One regex can split apart a numeric part and a non-numeric unit:
> In [24]: splitter.findall('2m 4cm 3mm')
> Out[24]: [('2', 'm'), ('4', 'cm'), ('3', 'mm')]
As ever Kent, a neat solution. Much more efficient than
my 3 way search and relatively easy to
<[EMAIL PROTECTED]> wrote
> Currently this is what I am working with.
Thanks for posting that it gives us a much better idea of
what stage you are at and lets us target our answers.
Forget the Cocoa suggestion I made earlier, your
basic Python skills need improving before you get
to that.
>
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