> with the little I know about classes, I assume that then I would have
> a list of class instances as representation of my tabular data
> but given such a list of class instances, i would still need for
> loops to get to e.g. the minimal value of a certain attribute in all
> classes in that list.
Danny Yoo wrote:
> Looking at pageimgs(): I'm not sure what 't' means in the open statement:
>
> f = open(filename, "rt")
>
> and I think that 't' might be a typo: I'm surprised that Python doesn't
> complain. Can anyone confirm this? I think you may have tried to do "r+"
> mode, but even
Hi Frank,
you can use Numeric.py it is also powerfull to handle averages, min, max, matrix algebra, etc..
see: http://www.pfdubois.com/numpy/
You just need to use a list.
If your data is big and you need more power I suggest you use database like mysqldb for python.
It is also fun to combine
Javier wrote:
> Class Data has a class attribute, 'f', defined as an empty string. Check if
> Data.f is initialized before calling getImg.
> Also, why initialize with an empty str? Put a None in there or don't define
> the attribute at all.
> A tip: in line 126 there is a print Data.f. This
Ok, new version (sorry to bug you).
This time I've edited the program so that you can only download todays
(it won't work for any other date). Now I can connect to the server but
it sticks on "Downloading image!"
Thanks for your prevoius help.
Joe
#! /usr/bin/env python
###
Hey list,
I've been working on my spider program (albeit not very much :P) and I
would appreciate it if I could get some comments on the code. I'm fairly
sure I haven't chosen the best method to do what I want to do, but if we
can just assume that I have, that'll make things easier. ;)
In particul
Python said unto the world upon 2005-10-08 12:32:
Thanks for the response, Llyod. (And to Alan, too.)
> I think that a sub-class *needs* to support the same programming
> interface as the parent class.
> If B inherits from A then every context where A or an A instance appears
> should work co
Python said unto the world upon 2005-10-08 12:40:
> Traceback (most recent call last):
>File "C:/Python24/foofoofoo.py", line 26, in -toplevel-
> s2 = Sub2()
>File "C:/Python24/foofoofoo.py", line 22, in __init__
> super(Sub2, self).__init__()
>File "C:/Python24/foofoofoo.py",
I'm looking to get the size (width, length) of a PDF file. Every pdf
file has a 'tag' (in the file) that looks similar to this
Example #1
MediaBox [0 0 612 792]
or this
Example #2
MediaBox [ 0 0 612 792 ]
I figured a regex might be a good way to get this data but the
whitespace (or no whitespac
There are four points with coordinates:
2,3;4,9;1,6;3,10.
How to use Python to draw one perpendicular bisector between (2,3) and (4,9);
the other perpendicular bisector between (1,6)和(3,10);
then, makes the output like:
l1 a b c
l2 a b c
(Note: l indicates the perpendicular bisector with equation a
There are four points with coordinates:
2,3;4,9;1,6;3,10.
How to use Python to draw one perpendicular bisector between (2,3) and (4,9);
the other perpendicular bisector between (1,6)和(3,10);
then, makes the output like:
l1 a b c
l2 a b c
(Note: l indicates the perpendicular bisector with equation a
At 09:10 PM 10/9/2005, Bill Burns wrote:
>I'm looking to get the size (width, length) of a PDF file. Every pdf
>file has a 'tag' (in the file) that looks similar to this
>
>Example #1
>MediaBox [0 0 612 792]
>
>or this
>
>Example #2
>MediaBox [ 0 0 612 792 ]
>
>I figured a regex might be a good way
If the format is consistent enough, you might get away with something like:
>>> p = re.compile('MediaBox \[ ?\d+ \d+ (\d+) (\d+) ?\]')
>>> print p.search(s).groups()
('612', '792')
The important bits being: ? means "0 or 1 occurences", and you
can use parentheses to group matches, and they get
13 matches
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