Re: [pygtk] gobject.timeout_add()
Il giorno sab, 23/01/2010 alle 15.51 -0800, dj ha scritto: Thanks for your continued help on this, Pietro. Here is a very basic look at what the program does: 1. At a specified time, tune the radio and launch ecasound to make a recording. 2. After the recording has finished, tune the radio to another frequency and launch ecasound again. The version of the program I had been using launched ecasound in a thread so that the GUI would not be blocked. gobject.timeout_add() was used to stop the program from immediately re-tuning and trying to record again before the previous recording was finished. This happens hourly plus an additional 0-4 schedules within each hour. When I tried to add another schedule within the hour, I couldn't get gobject.timeout_add() to work with it. The threaded version uses os.system() to launch ecasound. I've been experimenting with subprocess.Popen and subprocess.call in the non-threaded version, but I don't understand those too well, and they both block the GUI. I understand that nobody has suggested that I block the GUI, but I can live with that as long as the rest of the program works. import sys import subprocess p = subprocess.Popen(['sleep', '10']) sys.exit(0) Run the above and you'll see Popen() _doesn't_ block the code flow. You must be doing something else strange. Maybe you don't care about blocking the GUI, but you certainly care about understanding what's wrong. How I monitor the clock: Every 5 seconds I call time.gmtime() and check the hour and minute. When those correspond with the waiting schedule, the tuning a recording sequence starts. Can't you run gobject.timeout_add_seconds() _with_ the number of seconds which the recording must last?! Anyway your solution seems reasonable also to me. Pietro westli --- On Sat, 1/23/10, Pietro Battiston too...@email.it wrote: From: Pietro Battiston too...@email.it Subject: Re: [pygtk] gobject.timeout_add() To: PYGTK pygtk@daa.com.au Date: Saturday, January 23, 2010, 5:51 AM Il giorno ven, 22/01/2010 alle 21.44 -0800, dj ha scritto: Thank you John and Pietro for your observations and advice. Because of them, I did some rethinking of my program. Threading has worked okay for a couple of years in this program as I continually improved it. But the GUI I started with had to be useful while recordings were taking place. I use the to tune a radio receiver according to a schedule and record what was found there, and I needed to be able to make adjustments on the fly. I use a different radio and GUI now, and except for Start and Quit buttons, the GUI is just to supply information. So I don't need threading or the timeouts to pause the program until the recording is finished. I'm not thrilled with seeing the GUI go dark during recording, but it's okay. Notice I was not at all suggesting to you to block the GUI... How do you call your external processes? Now there is only one 5-second timeout to check the clock between scheduled recordings. Is there a better way to monitor the clock? I have to use time-of-day rather than time periods, and I haven't figured out a better way than executing time.gmtime() every 5 seconds. I unfortunately cannot understand _what_ type of monitoring you need, and hence how you are currently implementing it. Pietro westli --- On Thu, 1/21/10, Pietro Battiston too...@email.it wrote: From: Pietro Battiston too...@email.it Subject: Re: [pygtk] gobject.timeout_add() To: pygtk@daa.com.au Date: Thursday, January 21, 2010, 1:56 PM Il giorno gio, 21/01/2010 alle 08.56 +0100, John Stowers ha scritto: On Wed, 2010-01-20 at 21:22 -0800, dj wrote: I hope this is the right place to ask this... I have a python program (using Glade to create the gui) that periodically launches ecasound to make audio recordings of various lengths. In order to keep the gui viable, ecasound runs in a separate thread. In order to keep the program from getting ahead of itself and trying to launch ecasound before the current recording process has finished, I use gobject.timeout_add() for the length of the recording (plus a second or two for safety). Most of the calls to gobject.timeout_add() are in separate functions with different intervals. All but one of them work. The last one only works if gobject.timeout_add(..., ...)/return False is appended to the end of the function that needs it, rather than calling it. This doesn't sound like a particuarly nice design, More specifically: are you sure you need threads at all?! subprocess.call will block the GUI, but subprocess.Popen won't. Pietro
[pygtk] Gtk and pygtk modules not present
I am a new learner of Python and PyGTK. The following message is displayed when I try to import the pygtk and gtk modules: Python 2.3 (#46, Jul 29 2003, 18:54:32) [MSC v.1200 32 bit (Intel)] on win32 Type copyright, credits or license() for more information. ** ** Personal firewall software may warn about the connection IDLE makes to its subprocess using this computer's internal loopback interface. This connection is not visible on any external interface and no data is sent to or received from the Internet. IDLE 1.0 import pygtk Traceback (most recent call last): File pyshell#0, line 1, in -toplevel- import pygtk ImportError: No module named pygtk import gtk Traceback (most recent call last): File pyshell#1, line 1, in -toplevel- import gtk ImportError: No module named gtk I am using this in Windows Vista. Please help. Thanking you, Regards, Manjot Pahwa Consultant, Technology and Education Software for Education, Entertainment and Training Activities (SEETA) Undergraduate Netaji Subhas Institute of Technology Division of Computer Sciences +919953310807 ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
Re: [pygtk] Gtk and pygtk modules not present
On Sun, 2010-01-24 at 20:28 +0530, Manjot Pahwa wrote: I am a new learner of Python and PyGTK. The following message is displayed when I try to import the pygtk and gtk modules: Python 2.3 (#46, Jul 29 2003, 18:54:32) [MSC v.1200 32 bit (Intel)] on win32 Type copyright, credits or license() for more information. Python 2.3 is too old. John ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
[pygtk] See output
I am new to Python and Linux. Can you tell me how to view my output (I am creating programs via PyGTK) in Ubuntu 9.04 via Terminal? And how to view it from the command line in Windows? Regards, Manjot Pahwa Consultant, Technology and Education Software for Education, Entertainment and Training Activities (SEETA) Undergraduate Netaji Subhas Institute of Technology Division of Computer Sciences +919953310807 ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
Re: [pygtk] See output
Il giorno dom, 24/01/2010 alle 21.01 +0530, Manjot Pahwa ha scritto: I am new to Python and Linux. Can you tell me how to view my output (I am creating programs via PyGTK) in Ubuntu 9.04 via Terminal? And how to view it from the command line in Windows? There are more appropriate mailing lists for generic Python and Linux/Windows enquiries. Anyway: in PyGTK programs (unless you play with strange configurations), exactly as in regular Python programs, print prints to the terminal. Pietro ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
Re: [pygtk] pygtk Digest, Vol 83, Issue 22
Sorry for the late reply, but I skipped over this e-mail. I have
commented your e-mail below.
On 22 Jan 2010, at 04:00, pygtk-requ...@daa.com.au wrote:
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than Re: Contents of pygtk digest...
Today's Topics:
1. Re: Dialog (Pietro Battiston)
2. How to organize my app? (middleofdre...@gmail.com)
3. Re: How to organize my app? (Pietro Battiston)
4. Re: How to organize my app? (Pietro Battiston)
5. Re: How to organize my app? (middleofdre...@gmail.com)
--
Message: 1
Date: Thu, 21 Jan 2010 23:13:53 +0100
From: Pietro Battiston too...@email.it
Subject: Re: [pygtk] Dialog
To: PYGTK pygtk@daa.com.au
Message-ID: 1264112033.4712.276.ca...@vousci
Content-Type: text/plain; charset=UTF-8
Il giorno gio, 21/01/2010 alle 09.36 +, Peyman ha scritto:
Hello
I recently switched a few of my windows from being of type gtk.Window
to gtk.Dialog.
If you can show us the code, it will be much simpler...
No problem I have attached it for you, but I essentially create the
Dialog with the following call
window
=
gtk
..Dialog
(title=title,parent=widgets['main_window'],flags=gtk.DIALOG_MODAL|
gtk.DIALOG_DESTROY_WITH_PARENT)
I fixed everything so the dialogs show up, but now
they are HUGE.
In one dimension or both?
Generally in the horizontal dimension (because the buttons are
expanded), but in one case (embedded shell console) it is in both
directions
This has to do with the size_request of the horizontal
boxes (action_area).
How do you know? How are things distributed?
I discovered this by doing a size request call on both the dialog and
the action_area (where the buttons are), and they both had the same
width whereas the vertical box was much smaller
Both the vbox and the action_area have
homogeneous=False and spacing=0
What about running
while widget:
print widget, widget.size_request(), widget.get_size_request()
parent = widget.get_parent()
if parent:
try:
print parent.child_get_property('expand')
print parent.child_get_property('fill')
except:
pass
?
When I run the above code I get the following output
gtk.Dialog object (GtkDialog) at 0xb7b6e7d4 (1400,129) (-1,-1)
There is no parent, even though I created the dialog with a parent
passed as a parameter
When you can't for some reason provide code, please at least provide
lots of informations.
Pietro
Thanks
Peter
#!/usr/bin/env python
import sys
try:
import pygtk
pygtk.require(2.0)
except:
pass
try:
import gtk
import gtk.glade
except:
sys.exit(1)
from global_variables import widgets
from callbacks_universal import destroy_window
from widgets_universal import create_button_with_image
from callbacks_output_window import on_pause_button_clicked
from callbacks_output_window import on_play_button_clicked
from callbacks_output_window import on_next_button_clicked
from callbacks_output_window import on_stop_button_clicked
from callbacks_output_window import on_zoom_scale_value_changed
from callbacks_output_window import on_neuron_pad_scale_value_changed
from callbacks_output_window import on_iteration_spinbutton_value_changed
from callbacks_output_window import on_drawing_area_expose_event
from callbacks_output_window import on_drawing_area_configure_event
from helper_functions_drawing_area import initialize_drawing_area
def create_output_window(title=Output Window,width=300,height=300,show=True,maximize=False):
Create a window and call it 'output_window'
global widgets
if 'output_window' in widgets:
print Error, can not create window because it already exists: output_window
raise Exception
else:
window=gtk.Dialog(title=title,parent=widgets['main_window'],flags=gtk.DIALOG_MODAL|gtk.DIALOG_DESTROY_WITH_PARENT)
#window.set_icon_from_file(600px-Awesome.png)
if maximize:
window.maximize()
else:
window.resize(width,height)
widgets['output_window']=window
#connect the destroy signal to the universal destroy signal
window.connect(destroy,destroy_window,'output_window')
#fill this window with all its children
fill_output_window()
def run_output_window():
The run routine is called after the window has been loaded
global widgets
window=widgets['output_window']
if window.run():
window.destroy()
return True
else:
window.destroy()
return False
def fill_output_window():
Recursively create the widgets, starting from the vertical box
global widgets
#First get the main window
window=widgets['output_window']
#get vertical box
Re: [pygtk] Dialog (was: Re: pygtk Digest, Vol 83, Issue 22)
Il giorno dom, 24/01/2010 alle 18.03 +, Peyman ha scritto:
Sorry for the late reply, but I skipped over this e-mail. I have
commented your e-mail below.
Please, *do not* reply to digests, _in particular_ do not leave parts
that have nothing to do with the mail you're answering to.
Message: 1
Date: Thu, 21 Jan 2010 23:13:53 +0100
From: Pietro Battiston too...@email.it
Subject: Re: [pygtk] Dialog
To: PYGTK pygtk@daa.com.au
Message-ID: 1264112033.4712.276.ca...@vousci
Content-Type: text/plain; charset=UTF-8
Il giorno gio, 21/01/2010 alle 09.36 +, Peyman ha scritto:
Hello
I recently switched a few of my windows from being of type gtk.Window
to gtk.Dialog.
If you can show us the code, it will be much simpler...
No problem I have attached it for you, but I essentially create the
Dialog with the following call
window
=
gtk
..Dialog
(title=title,parent=widgets['main_window'],flags=gtk.DIALOG_MODAL|
gtk.DIALOG_DESTROY_WITH_PARENT)
Yes, but this call doesn't create a huge window at all...
I fixed everything so the dialogs show up, but now
they are HUGE.
In one dimension or both?
Generally in the horizontal dimension (because the buttons are
expanded), but in one case (embedded shell console) it is in both
directions
This has to do with the size_request of the horizontal
boxes (action_area).
How do you know? How are things distributed?
I discovered this by doing a size request call on both the dialog and
the action_area (where the buttons are), and they both had the same
width whereas the vertical box was much smaller
Both the vbox and the action_area have
homogeneous=False and spacing=0
What about running
while widget:
print widget, widget.size_request(), widget.get_size_request()
parent = widget.get_parent()
if parent:
try:
print parent.child_get_property('expand')
print parent.child_get_property('fill')
except:
pass
?
When I run the above code I get the following output
gtk.Dialog object (GtkDialog) at 0xb7b6e7d4 (1400,129) (-1,-1)
Sorry, I didn't mean to run it on the dialog itself, but on some widget
nested inside the ones that are reclaiming too much space.
_That_ is the information you should be interested in.
There is no parent, even though I created the dialog with a parent
passed as a parameter
Your parent parameter establishes a relation between toplevel windows,
while the get_parent() method of widgets just (usually) returns the
gtk.Container containing it: they are too different things, see the
documentations for details.
I took a look at your code, and after briefly stripping everything that
impeded its usage without the external dependencies, it didn't reproduce
the behaviour you described.
If you ask for help, it is your job to put together some code that runs,
isn't huge and reproduces the problem. Attaching a single file depending
on tons of imports doesn't help.
On the other hand, I recognize if you do the job if isolating the
problem, you'll maybe solve it yourself.
Pietro
___
pygtk mailing list pygtk@daa.com.au
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Read the PyGTK FAQ: http://faq.pygtk.org/
[pygtk] Easy way to print on paper?
Hi, I'm trying to print something with the pango layout obtained from the draw-page event but i was wondering if it exists something to render simple html like tables and stuff like that to make my life a lot easier, right now I'm trying to measure with tabs and \n, when i just want to print exactly the same as an html table but to a paper. Any suggestions are really appreciated. --Joel Rivera ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
[pygtk] Attribute error: module object has no attribute 'Window'
I get this on: import pygtk import gtk w = gtk.Window(WINDOW) ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
