Hello list.
I'd really appreciate any comments, particulary regarding style
corrections. I'm a newbie...
Thanks!
Ismael
import random
import tkMessageBox
from Tkinter import *
class GUI:
def __init__(self):
self._crearGUI()
def _crearGUI(self):
self.root = Tk()
self.roo
Hello,
I've been working on a small GUI program (on & off) for a little while now and
I'd love to have the group (or anyone for that matter) take a look at it and
give me some pointers. Since I'm not a programmer and I don't do this
continuously, I don't now if I'm on the right track or not. I'd l
> I have only wrapped my lock around file-descriptor creations. Should I
> wrap it around closings too? Or the whole open -> close transaction?
> It sounds like error-prone work to do the latter. What am I missing?
Hi Marilyn,
Can you send a link to the source code to the Tutor list? I'm ge
Orri Ganel wrote:
I did some googling, and found this in the archives of this mailing
list:
import os
os.system('c:\\abaqus\\5.8-14\\abaqus.exe post')
, where post was a command, *not* a file. Now, I tried something
similar, since essentially what I wish to be able to do is have
A
I did some googling, and found this in the archives of this mailing
list:
import os
os.system('c:\\abaqus\\5.8-14\\abaqus.exe post')
, where post was a command, *not* a file. Now, I tried something
similar, since essentially what I wish to be able to do is have
Audacity think I typed the 'R
p.p.s.
I have only wrapped my lock around file-descriptor creations. Should
I wrap it around closings too? Or the whole open -> close
transaction? It sounds like error-prone work to do the latter. What
am I missing?
What should I be reading to get a better clue?
I'll do some googling.
Thank
Alan Gauld wrote:
Well, ultimately, what I want to be able to do is open Audacity
(http://audacity.sourceforge.net/) at a predetermined time and have
it
begin recording wave mix out (the default i have it set to anyway),
and
then have it stop agai
Dearest Tutors,
Bah! It's not over yet. I don't know why, but again my file
descriptors are being trampled upon now and then.
This time I can see in my log that I'm not trampling on them myself,
like I used to do, unless I'm making calls to the system that I'm not
aware of.
And, first I get th
[Alan Gauld]
> OK, The timbot's word is good enough for me, I won't bother
> looking at the code, I'll revert to my previous assumption! :-)
It's educational to look at the code anyway . Here it is, from
Python's listobject.c:
static int
list_length(PyListObject *a)
{
return a->ob_size;
> GR> len is actually a field in the underlying C object so len() is a
> GR> constant (O(1)) and as-fast-as-it-can-be operation.
>
TP> ...n integers), but (ignoring the range() complication) there's no
TP> difference in O() behavior between the two.
OK, The timbot's word is good enough for me, I w
> It this correct? Python lists are not linked-lists (as in Scheme,
for
> example). They are more like arrays (or vectors in C++/Java) with a
> little more sofistication built into them to allow, for example, to
> amortize over time a sequence of append operations. But in a
nutshell,
> len is actua
[Gonçalo Rodrigues]
> It this correct? Python lists are not linked-lists (as in Scheme, for
> example). They are more like arrays (or vectors in C++/Java) with a
> little more sofistication built into them to allow, for example, to
> amortize over time a sequence of append operations. But in a nuts
Whew! What a trip this bug has been!
Danny was exactly right here:
> is exactly the sort of thing I'd expect if two threads were
> contending for the same resource, so let's see if the bug has to do
> with this.
This bug drove me nuts. (it's a short drive)
So I started wrapping my file open
> Well, ultimately, what I want to be able to do is open Audacity
> (http://audacity.sourceforge.net/) at a predetermined time and have
it
> begin recording wave mix out (the default i have it set to anyway),
and
> then have it stop again when i send it a command.
This will be much easier from pyt
Alan Gauld wrote:
By missing out a loop(*) and some splits it should speed up
significantly for the cost of some small added complexity in building
the dictionaries in the first case.
(*)In fact 3 loops because you aren't doing len() which effectively
loops over the collection too.
It this cor
Alan Gauld wrote:
I'm trying to use Python to start the dos-box ("cmd.exe") and be
able to
call commands on it and receive output from it.
The Command window is just a terminal, there is no output to
be had other than an exit code when it closes.
I'm not too sure about this...
Couldn't you make that a package?
Rename Backup.py to __init__.py
Put all of the modules in a folder named Backup
in your sys.path - Question: Does it have to be
in site-packages?
Well, there's my two bits,
Jacob
> During the recent discussion on jython, a poster
>
You have to set up your Access database as an ODBC data source. I can't give you all the details but
on my Win2k system if I go to Start / Control Panels / Administrative Tools / Data Sources (ODBC)
that is the place to set it up.
IIRC you give the data source a name. Then in the ODBC driver (th
> I'm trying to use Python to start the dos-box ("cmd.exe") and be
able to
> call commands on it and receive output from it.
The Command window is just a terminal, there is no output to
be had other than an exit code when it closes.
> However, none of the documentation for popen and
> spawn cover
> Thank you for your suggestion. I tried creating a
> dictionary of 'what' list and searched keys with
> has_key method and it is pretty fast.
Use try/except and it will be faster still. The except only
gets triggered if theres a missing entry - which in your
case should be hardly ever! So you
> a = input("Type in the Grose: ")
> b = input("type in the Miles: ")
> print "a * 0.74 / b is" a*0.74/b
Try adding a comma between the message and the calculation.
print "a * 0.74 / b is", a*0.74/b
It tells print that there are two separate things to print.
Also when posting problems it is alw
> >>>for i in range(len(what)):
> ele = split(what[i],'\t')
> cor1 = ele[0]
It will be faster if you stop using len() in your for loops!
for item in what:
> for k in range(len(my_report)):
> cols = split(my_report[k],'\t')
> cor = cols[0]
And again:
for item in my_report:
> if cor1 == cor:
> p
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