matplotlib-users Mailing List for matplotlib

In article 
<e59...@ma...>,
 "Stephen Uhlhorn" 
 <ste...@gm...> wrote:
> I'm running MacPython 2.5 on Mac OS 10.5.1 and would like to update
> matplotlib to 0.91.1. Im using mpl 0.90.1 from the pythonmac site now.
> Is it better for me to wait till a pythonmac package is availabel or
> are the eggs on SF good to use. I would favor the SF eggs because of
> ease of upgrading unless there are some OS X conflicts I'm unaware of.
If you use Tcl/Tk and use a current version (instead of the ancient 
version that is built in) then use the packages at pythonmac. I just 
built 0.91.1 today and it should show up there soon. Meanwhile you can 
get it from here:
<http://www.astro.washington.edu/rowen/pythoninstallers/>
I hope that someday the official Mac egg version will work with 3rd 
party Tcl/Tk but no version I've tried has -- including 0.91.1.
> If I use the eggs, what's the best way to safely uninstall the
> pythonmac package? Just delete the relevant site-packages durectory?
That's what I do, but I'm not sure it's the best way. I delete all 
folders whose names start with "matplotlib" (usually a folder named 
"matplotlib" and another named matplotlib-xxx-py2.5.egg-info)
-- Russell

Michael Droettboom skrev:
> Fernando Perez wrote:
>> Hey Jorgen,
>>
>> On Dec 4, 2007 12:10 PM, Jörgen Stenarson <jor...@bo...> wrote:
>>> Hi,
>>>
>>> I get a complete crash dumping me in the console when there are unknown
>>> latex commands in a mathtext expression, this when doing interactive
>>> stuff in ipython -pylab.
>>>
>>> examples:
>>> title("$|S_{11}|$")
>> that's odd, it's OK for mpl to throw the exception, what shouldn't be
>> happening is for ipython to fully crash out. I can't reproduce it
>> with SVN mpl on my box, I tried both tkagg and gtkagg as backends and
>> in both cases I see the exception traceback (as Michael intended by
>> raising the error) but I simply get back the next ipython prompt, as
>> usual. I don't understand how this particular exception could crash
>> out ipython, since it's being raised inside regular user code...
> 
> You're right -- I misread the original report. It doesn't crash ipython 
> for me either. I just get another ipython prompt.
> 
> Cheers,
> Mike
> 
Thanks Mike. I hope we can figure out what is causing the crashes but I 
guess we can take this over on the ipython-list. Fernando have you tried 
it on a windows machine? I'm using tkagg. Do you have any ideas on what 
I could start testing to isolate the problem?
/Jörgen

It sure is!
For the top too you need
 subplot(2,2,1) and subplot(2,2,2)
For the bottom plot
 subplot(2,1,2)
They key to remember is the numrows x numcols defines the grid
and the plot number defines where the plot goes in the grid. This
is a tricky bit to wrap your head around initially but once you
get it, its a very powerful way of specifies plots with just 3
bits of info.
Shannon
----------------
Shannon Jaeger
Physics & Asronomy Dept.
University of Calgary
On Tue, December 4, 2007 11:19 am, Tom Johnson said:
> Is it possible to have nested subplots?
>
> I would like to have 2 rows....with the top row having two columns and
> the bottom row having one column.
>
> For the bottom plot, I'd like to be able to choose between the following:
> 1) The size of the bottom plot expands to fill the entire horizontal
> space.
> 2) The size of the bottom plot is unchanged (same as the other two
> plots) and is simply centered in the bottom row.
>
> x x
> x
>
> Thanks.
>
> -------------------------------------------------------------------------
> SF.Net email is sponsored by: The Future of Linux Business White Paper
> from Novell. From the desktop to the data center, Linux is going
> mainstream. Let it simplify your IT future.
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> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
>

massimo sandal <mas...@un...> [2007年12月04日 09:18]:
>On a related note, I *hate* that hitting "reply" uses the mail address 
>of the parent poster, instead than that of the mailing list. The scipy 
>and the gentoo mailing list (two other examples I know) behave more 
>properly. Is this a sourceforge quirk?
The list follows RFC 2822. The Reply-To header is intended to be
created by the originator of the message. List software that
overwrites the Reply-To header destroys the function it's intended
for.
There's an excellent essay on this at:
http://woozle.org/~neale/papers/reply-to-still-harmful
Mailman implements RFC 2369, which is intended to address this
issue. If you want replies to go to the list, I suggest that you
use a mail client that follows RFC 2369. If you choose to use old
software that doesn't recognize the List-Post header, please don't
complain about software that follows RFC standards.
-rex

Stephen Uhlhorn wrote:
> I'm running MacPython 2.5 on Mac OS 10.5.1 and would like to update
> matplotlib to 0.91.1. Im using mpl 0.90.1 from the pythonmac site now.
> Is it better for me to wait till a pythonmac package is availabel or
> are the eggs on SF good to use.
I'm pretty sure the goal is that the eggs on SF are good to go. Please 
report it if they don't work for you.
The goal behind the pythonmac packages was that they be as easy as 
possible to install. We started all that before eggs existed (or became 
common, anyway). We may just start putting eggs on pythonmac, though 
since nothing useful happens when you double-click on them, some newbies 
have gotten confused.
> If I use the eggs, what's the best way to safely uninstall the
> pythonmac package? Just delete the relevant site-packages durectory?
That will work, though I don't think you need to uninstall it at all, 
unless you want to save a bit of disk space.
--running off to test this myself....
-Chris
-- 
Christopher Barker, Ph.D.
Oceanographer
Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
Seattle, WA 98115 (206) 526-6317 main reception
Chr...@no...

Fernando Perez wrote:
> Hey Jorgen,
> 
> On Dec 4, 2007 12:10 PM, Jörgen Stenarson <jor...@bo...> wrote:
>> Hi,
>>
>> I get a complete crash dumping me in the console when there are unknown
>> latex commands in a mathtext expression, this when doing interactive
>> stuff in ipython -pylab.
>>
>> examples:
>> title("$|S_{11}|$")
> 
> that's odd, it's OK for mpl to throw the exception, what shouldn't be
> happening is for ipython to fully crash out. I can't reproduce it
> with SVN mpl on my box, I tried both tkagg and gtkagg as backends and
> in both cases I see the exception traceback (as Michael intended by
> raising the error) but I simply get back the next ipython prompt, as
> usual. I don't understand how this particular exception could crash
> out ipython, since it's being raised inside regular user code...
You're right -- I misread the original report. It doesn't crash ipython 
for me either. I just get another ipython prompt.
Cheers,
Mike
-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

Hey Jorgen,
On Dec 4, 2007 12:10 PM, J=F6rgen Stenarson <jor...@bo...> =
wrote:
> Hi,
>
> I get a complete crash dumping me in the console when there are unknown
> latex commands in a mathtext expression, this when doing interactive
> stuff in ipython -pylab.
>
> examples:
> title("$|S_{11}|$")
that's odd, it's OK for mpl to throw the exception, what shouldn't be
happening is for ipython to fully crash out. I can't reproduce it
with SVN mpl on my box, I tried both tkagg and gtkagg as backends and
in both cases I see the exception traceback (as Michael intended by
raising the error) but I simply get back the next ipython prompt, as
usual. I don't understand how this particular exception could crash
out ipython, since it's being raised inside regular user code...
Really, really strange...
f

Jörgen Stenarson wrote:
> Hi,
> 
> I get a complete crash dumping me in the console when there are unknown 
> latex commands in a mathtext expression, this when doing interactive 
> stuff in ipython -pylab.
That is on purpose. If you give mathtext something that is a syntax 
error, it throws an exception, showing where the syntax error occurred. 
 The only time mathtext gives warnings (as opposed to errors) is when a 
the expression is syntactically correct but the symbols can not be found 
in the currently configured font. This is to make sure that plots are 
portable between matplotlib installations ... but the intention is not 
to fail silently on invalid expressions.
> examples:
> title("$|S_{11}|$")
> title("$\vbar S_{11} \vbar$")
> 
> I would also like to see an alias between | and \vert like there is in 
> regular latex.
That was an oversight -- and is a good idea. This has been added in r4586.
Thanks for finding this,
Mike
-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

I just started playing with the CocoaAgg backend in mpl 0.90.1
w/pyobjc 1.4 and matplotlib uses the 'backend' line in the rc file
just fine. However, it doesn't seem to work well in interactive mode
using ipython 0.8.1 (control is not returned to the shell after
plotting).
-stephen
On Dec 4, 2007 1:49 PM, Chris Fonnesbeck <lis...@ma...> wrote:
> I have the CocoaAgg backend specified in matplotlibrc in ~/.matplotlib/ as:
>
> backend : CocoaAgg
>
> However, when I plot, matplotlib uses the TkAgg backend in spite of this.
>
> --
> Christopher J. Fonnesbeck
> + Fish & Wildlife Research Institute (FWC)
> + 727.235.5570
>
> -------------------------------------------------------------------------
> SF.Net email is sponsored by: The Future of Linux Business White Paper
> from Novell. From the desktop to the data center, Linux is going
> mainstream. Let it simplify your IT future.
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> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Hi,
I get a complete crash dumping me in the console when there are unknown 
latex commands in a mathtext expression, this when doing interactive 
stuff in ipython -pylab.
examples:
title("$|S_{11}|$")
title("$\vbar S_{11} \vbar$")
I would also like to see an alias between | and \vert like there is in 
regular latex.
I have attached a crash report from ipython for the first case
I'm using 0.91.1, python 2.4, on win xp
/Jörgen

Of course, I meant CocoaAgg, not -Aff.
cf
On Dec 4, 2007 1:49 PM, Chris Fonnesbeck <lis...@ma...> wrote:
> I have the CocoaAgg backend specified in matplotlibrc in ~/.matplotlib/ as:
>
> backend : CocoaAgg
>
> However, when I plot, matplotlib uses the TkAgg backend in spite of this.
>
> --
> Christopher J. Fonnesbeck
> + Fish & Wildlife Research Institute (FWC)
> + 727.235.5570
>
-- 
Christopher J. Fonnesbeck
+ Fish & Wildlife Research Institute (FWC)
+ 727.235.5570

Charlie Moad skrev:
> I have posted fresh win32 eggs and exe's on SF. I explicitly removed
> the inclusion of msvcp from distutils in numpy. Please give them a
> try and let me know if you have any more problems. Note: I just
> posted the files so it might take a while for them to propagate.
> 
> - Charlie
> 
Works fine for me now.
/Jörgen

On Dec 4, 2007 12:19 PM, Tom Johnson <tj...@gm...> wrote:
> Is it possible to have nested subplots?
>
> I would like to have 2 rows....with the top row having two columns and
> the bottom row having one column.
>
> For the bottom plot, I'd like to be able to choose between the following:
> 1) The size of the bottom plot expands to fill the entire horizontal space.
> 2) The size of the bottom plot is unchanged (same as the other two
> plots) and is simply centered in the bottom row.
1) is easy:
 subplot(221)
 subplot(222)
 subplot(212)
2) requires you to use axes rather than subplot. The syntax is
axes([left, bottom, width, height])
 ax1 = subplot(221)
 ax2 = subplot(222)
 l,b,w,h = ax1.get_position()
 ax3 = axes([0.5-w/2., 0.1, w, h])

I have the CocoaAgg backend specified in matplotlibrc in ~/.matplotlib/ as:
backend : CocoaAgg
However, when I plot, matplotlib uses the TkAgg backend in spite of this.
-- 
Christopher J. Fonnesbeck
+ Fish & Wildlife Research Institute (FWC)
+ 727.235.5570

I'm running MacPython 2.5 on Mac OS 10.5.1 and would like to update
matplotlib to 0.91.1. Im using mpl 0.90.1 from the pythonmac site now.
Is it better for me to wait till a pythonmac package is availabel or
are the eggs on SF good to use. I would favor the SF eggs because of
ease of upgrading unless there are some OS X conflicts I'm unaware of.
If I use the eggs, what's the best way to safely uninstall the
pythonmac package? Just delete the relevant site-packages durectory?
Thanks-
-stephen

Is it possible to have nested subplots?
I would like to have 2 rows....with the top row having two columns and
the bottom row having one column.
For the bottom plot, I'd like to be able to choose between the following:
 1) The size of the bottom plot expands to fill the entire horizontal space.
 2) The size of the bottom plot is unchanged (same as the other two
plots) and is simply centered in the bottom row.
x x
 x
Thanks.

Lars,
I don't think you can do much about this using the interactive tool, so 
your options are:
1) position all axes explicitly, or
2) use colorbar kwargs to get a more pleasing arrangement. The relevant 
kwargs are:
 fraction = 0.15; fraction of original axes to use for 
colorbar
 pad = 0.05 if vertical, 0.15 if horizontal; fraction
 of original axes between colorbar and
 new image axes
 shrink = 1.0; fraction by which to shrink the colorbar
 aspect = 20; ratio of long to short dimensions
Eric
Lars Friedrich wrote:
> Hello,
> 
> I would like to have multiple image plots in a figure. Each plot should 
> have its own colorbar. I tried the following:
> 
> **********************************
> a = N.array(((1,2,3), (4,5,6)))
> 
> P.figure(0)
> P.subplot(1,2,1)
> P.imshow(a)
> P.colorbar()
> 
> P.subplot(1,2,2)
> P.imshow(a)
> P.colorbar()
> ************************************
> 
> The two images display and have their own colorbar, each. However, the 
> placement is not optimal. (see attached 'colorbar1.png') But when I try 
> to use the "Configure subplot parameters" feature in the interactive 
> figure window, only the image plots are affected and the colorbars stay 
> as they are. When I hit the reset button in the "configure subplots" 
> dialogue, the figure looks different from the way it looked, when it was 
> generated (see attached 'colorbar2.png'). Do I have to do all the 
> placement on my own by using axes.set_position or is there a more 
> comfortable way using the subplot syntax?
> 
> Thanks
> Lars
> 
> ------------------------------------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
> -------------------------------------------------------------------------
> SF.Net email is sponsored by: The Future of Linux Business White Paper
> from Novell. From the desktop to the data center, Linux is going
> mainstream. Let it simplify your IT future.
> http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users

Mike,
 Updating to 0.91.1 fixed it. Python's memory usage was climbing in 
excess of 1 GB when running this script before (eventually crashing) -- 
now it hovers nicely around 60MB and completes with no problems. Excellent!
Thanks,
--Jordan
Michael Droettboom wrote:
> You can try running the garbage collector after each savefig. 
> ("import gc" and then call "gc.collect()"). If you are using a GUI 
> backend, you may want to try using the "raw" Agg backend instead -- 
> there are fewer moving parts that way.
>
> There have been a number of memory leaks that have been fixed since 
> 0.90.1. You may want to try 0.91 or a SVN checkout to see if that 
> fixes your problem.
>
> There is additional information about memory leaks in the FAQ. I 
> don't know if any are relevant to your particular situation:
>
> http://matplotlib.sourceforge.net/faq.html#LEAKS
>
> If none of the above helps, please send a complete but short script 
> that reproduces the error (basing it on memleak_gui.py or 
> memleak_hawaii.py is even more helpful), and one of the developers can 
> look into it.
>
> Cheers,
> Mike
>
> Jordan Atlas wrote:
>
>> Hi all,
>>
>> I've noticed that when I save my figures using savefig the memory 
>> is not immediately released. For example, in pseudocode,
>>
>> times = get_times()
>> for var_id in var_list:
>> Plotting.figure()
>> var_values = get_values(var_id)
>> pylab.plot(times, values)
>> Plotting.savefig(var+'.png', dpi=150)
>> Plotting.close()
>>
>> This pseudo code loops over a list of variables, gets their values, 
>> and saves a plot for each one. The variable list has hundreds of 
>> items. If I run the code like this, the memory usage grows very 
>> quickly until python crashes. If I comment out the savefig line, or 
>> shorten the list of variables, the code completes without error.
>>
>> Can anyone suggest how I might write this differently so that I can 
>> process the long list of variables and save the figures? Is there 
>> any way to force the program to release memory once the figures are 
>> saved?
>>
>> I'm using matplotlib 0.90.1 and python 2.4 on windows XP.
>>
>> Thank you,
>>
>> --Jordan Atlas
>>
>>
>> ------------------------------------------------------------------------- 
>>
>> SF.Net email is sponsored by: The Future of Linux Business White Paper
>> from Novell. From the desktop to the data center, Linux is going
>> mainstream. Let it simplify your IT future.
>> http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>

This is apparently a configuration option of mailman that has been 
purposefully set for the matplotlib mailing lists. I don't have strong 
opinions about this, but you may be interested in this thread:
http://sourceforge.net/mailarchive/message.php?msg_id=903323ff0708220749r82f9650i7338e63a56d6094d%40mail.gmail.com
Cheers,
Mike
massimo sandal wrote:
> Robert Dailey ha scritto:
> 
>> What are the different ways one could send an email to a mailing list?
> 
> On a related note, I *hate* that hitting "reply" uses the mail address 
> of the parent poster, instead than that of the mailing list. The scipy 
> and the gentoo mailing list (two other examples I know) behave more 
> properly. Is this a sourceforge quirk?
> 
> m.
> 
> -------------------------------------------------------------------------
> SF.Net email is sponsored by: The Future of Linux Business White Paper
> from Novell. From the desktop to the data center, Linux is going
> mainstream. Let it simplify your IT future.
> http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

You can try running the garbage collector after each savefig. ("import 
gc" and then call "gc.collect()"). If you are using a GUI backend, you 
may want to try using the "raw" Agg backend instead -- there are fewer 
moving parts that way.
There have been a number of memory leaks that have been fixed since 
0.90.1. You may want to try 0.91 or a SVN checkout to see if that fixes 
your problem.
There is additional information about memory leaks in the FAQ. I don't 
know if any are relevant to your particular situation:
http://matplotlib.sourceforge.net/faq.html#LEAKS
If none of the above helps, please send a complete but short script that 
reproduces the error (basing it on memleak_gui.py or memleak_hawaii.py 
is even more helpful), and one of the developers can look into it.
Cheers,
Mike
Jordan Atlas wrote:
> Hi all,
> 
> I've noticed that when I save my figures using savefig the memory is 
> not immediately released. For example, in pseudocode,
> 
> times = get_times()
> for var_id in var_list:
> Plotting.figure()
> var_values = get_values(var_id)
> pylab.plot(times, values)
> Plotting.savefig(var+'.png', dpi=150)
> Plotting.close()
> 
> This pseudo code loops over a list of variables, gets their values, and 
> saves a plot for each one. The variable list has hundreds of items. If 
> I run the code like this, the memory usage grows very quickly until 
> python crashes. If I comment out the savefig line, or shorten the list 
> of variables, the code completes without error.
> 
> Can anyone suggest how I might write this differently so that I can 
> process the long list of variables and save the figures? Is there any 
> way to force the program to release memory once the figures are saved?
> 
> I'm using matplotlib 0.90.1 and python 2.4 on windows XP.
> 
> Thank you,
> 
> --Jordan Atlas
> 
> 
> -------------------------------------------------------------------------
> SF.Net email is sponsored by: The Future of Linux Business White Paper
> from Novell. From the desktop to the data center, Linux is going
> mainstream. Let it simplify your IT future.
> http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

Robert Dailey ha scritto:
> What are the different ways one could send an email to a mailing list?
On a related note, I *hate* that hitting "reply" uses the mail address 
of the parent poster, instead than that of the mailing list. The scipy 
and the gentoo mailing list (two other examples I know) behave more 
properly. Is this a sourceforge quirk?
m.
-- 
Massimo Sandal
University of Bologna
Department of Biochemistry "G.Moruzzi"
snail mail:
Via Irnerio 48, 40126 Bologna, Italy
email:
mas...@un...
tel: +39-051-2094388
fax: +39-051-2094387

Hi all,
 I've noticed that when I save my figures using savefig the memory is 
not immediately released. For example, in pseudocode,
times = get_times()
for var_id in var_list:
 Plotting.figure()
 var_values = get_values(var_id)
 pylab.plot(times, values)
 Plotting.savefig(var+'.png', dpi=150)
 Plotting.close()
This pseudo code loops over a list of variables, gets their values, and 
saves a plot for each one. The variable list has hundreds of items. If 
I run the code like this, the memory usage grows very quickly until 
python crashes. If I comment out the savefig line, or shorten the list 
of variables, the code completes without error.
Can anyone suggest how I might write this differently so that I can 
process the long list of variables and save the figures? Is there any 
way to force the program to release memory once the figures are saved?
I'm using matplotlib 0.90.1 and python 2.4 on windows XP.
Thank you,
--Jordan Atlas

Hey guys,
I realize this isn't the place to post this but I can't figure out a better
place. I just had a really quick question.
Sometimes I notice that mail I receive from this mailing list was never
directly (through To: or CC:) sent to the mailing list. For example, say
there's two people communicating:
fo...@bl...
fo...@bl...
Usually when foo1 sends a mail to foo2, foo2 will receive a mail like this:
To: fo...@bl...
From: fo...@bl...
CC: mat...@li...
However, in one case I found that the mail was never sent to
matplotlib-users. However, somehow the list.sourceforge.net mailing server
intercepted it and sent it to the other person via a 'bounce' email address.
How does this happen? What are the different ways one could send an email to
a mailing list?
Thanks, and again apologies for the off topic post.

I have the CocoaAgg backend specified in matplotlibrc in ~/.matplotlib/ as:
backend : CocoaAgg
However, when I plot, matplotlib uses the TkAgg backend in spite of this.
-- 
Christopher J. Fonnesbeck
+ Fish & Wildlife Research Institute (FWC)
+ 727.235.5570

On Tuesday 04 December 2007 16:05:33 John Hunter wrote:
> On Dec 4, 2007 10:00 AM, Jos=E9 G=F3mez-Dans <jgo...@gm...> wrote:
> > Interestingly enough, the embedding_in_gtk.py script works perfectly
> > (takes less than a second to run), so I am not able to reproduce the
> > slowness!
>
> Hmm, the plot thickens. How about embedding_in_gtk2.py -- this add the
> toolbar
This does indeed slow things down. The minimal script that reproduces this=
=20
behaviour is the following (the delay appears round about the definition of=
=20
toolbar):
import gtk
from matplotlib.axes import Subplot
from matplotlib.figure import Figure
from numpy import arange, sin, pi
from matplotlib.backends.backend_gtk import FigureCanvasGTK as FigureCanvas
from matplotlib.backends.backend_gtk import NavigationToolbar2GTK \
	as NavigationToolbar
win =3D gtk.Window()
win.connect("destroy", lambda x: gtk.main_quit())
win.set_default_size(400,300)
win.set_title("Embedding in GTK")
fig =3D Figure(figsize=3D(5,4), dpi=3D100)
canvas =3D FigureCanvas(fig)
toolbar =3D NavigationToolbar(canvas, win)
# ^ Delay appears here
win.add(toolbar)
win.show_all()
gtk.main()