show() problem in Mac OS X 10.5.8

_Kim_Dae-Won · August 19, 2009, 4:55pm

I have a problem with show() command in my macbook machine (Leopard 10.5.8).
For example, if I run the script shown below
(let assume it is saved as 'test.py', and I run a command 'python test.py'),

···

---------------------------------------

plot([1,2,3,4,5])
show() #first window
plot([1,2,3,4,5])
show() #second window
plot([1,2,3,4,5])
show() #third window

---------------------------------------

Then the first window just pops up and I can see a beautiful straight line
No problem so far.
But, after I close the first window by clicking the close button of the
window,
other two window (second and third) just pops up and close themselves
instantly
even though I didn't click the close button...
Also, the second and third plot is shown in the same window.

I don't have such problem in my Ubuntu machine..

Does anybody know reasons?

Thanks in advance!!

--
View this message in context: http://www.nabble.com/show()-problem-in-Mac-OS-X-10.5.8-tp25047335p25047335.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

_Ryan_May1 · August 19, 2009, 5:02pm

show() actually handles starting the GUI mainloop, so you really shouldn’t be calling it more than once from a script. Quite frankly, it’s more amazing that it works on your Ubuntu macine. If you’re wanting 3 separate windows, try:

plot([1,2,3,4,5])
figure()
plot([1,2,3,4,5])
figure()
plot([1,2,3,4,5])
show()

Ryan

···

On Wed, Aug 19, 2009 at 11:55 AM, coati <dwkim78@…287…> wrote:

I have a problem with show() command in my macbook machine (Leopard 10.5.8).

For example, if I run the script shown below

(let assume it is saved as ‘test.py’, and I run a command ‘python test.py’),

plot([1,2,3,4,5])

show() #first window

plot([1,2,3,4,5])

show() #second window

plot([1,2,3,4,5])

show() #third window

Then the first window just pops up and I can see a beautiful straight line

No problem so far.

But, after I close the first window by clicking the close button of the

window,

other two window (second and third) just pops up and close themselves

instantly

even though I didn’t click the close button…

Also, the second and third plot is shown in the same window.

I don’t have such problem in my Ubuntu machine…

Does anybody know reasons?

–
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma

_Kim_Dae-Won · August 19, 2009, 5:57pm

Thanks Ryan,

Hm… it’s a bit strange… I just installed matplotlib at Ubuntu using the package manager
And, another linux machines (red hat enterprise) can do this too. For the RHELs, I compiled matplotlib source code by myself.

figure() works very well, but what I want to do is to check the plots one by one and thus
I can exit the script at any time I want (because I usually have lots of figures to check and I don’t want
to pop up every of them at the same time…)

Anyway, thank you very much!

···

On Wed, Aug 19, 2009 at 1:02 PM, Ryan May <rmay31@…1896…> wrote:

On Wed, Aug 19, 2009 at 11:55 AM, coati <dwkim78@…287…> wrote:

I have a problem with show() command in my macbook machine (Leopard 10.5.8).

For example, if I run the script shown below

(let assume it is saved as ‘test.py’, and I run a command ‘python test.py’),

plot([1,2,3,4,5])

show() #first window

plot([1,2,3,4,5])

show() #second window

plot([1,2,3,4,5])

show() #third window

Then the first window just pops up and I can see a beautiful straight line

No problem so far.

But, after I close the first window by clicking the close button of the

window,

other two window (second and third) just pops up and close themselves

instantly

even though I didn’t click the close button…

Also, the second and third plot is shown in the same window.

I don’t have such problem in my Ubuntu machine…

Does anybody know reasons?

show() actually handles starting the GUI mainloop, so you really shouldn’t be calling it more than once from a script. Quite frankly, it’s more amazing that it works on your Ubuntu macine. If you’re wanting 3 separate windows, try:

plot([1,2,3,4,5])

figure()

plot([1,2,3,4,5])

figure()

plot([1,2,3,4,5])
show()

Ryan

–
Ryan May

Graduate Research Assistant
School of Meteorology
University of Oklahoma

_Kim_Dae-Won · August 19, 2009, 6:48pm

The one ‘preliminary’ solution I found is using an interactive mode + raw_input.
Here is and example,

    ion()
    plot([1,2,3,4,5])
    raw_input('Type Enter')
    clf()

    plot([1,2,3,4,5])
    raw_input('Type_Enter')
    clf()
    plot([1,2,3,4,5])
    show()

With this approach, I can press the enter when I want to see next figure.

Though It’s not as convenient as ‘multiple show()’…

···

On Wed, Aug 19, 2009 at 1:57 PM, Kim, Dae-Won <dwkim78@…287…> wrote:

On Wed, Aug 19, 2009 at 1:02 PM, Ryan May <rmay31@…287…> wrote:

On Wed, Aug 19, 2009 at 11:55 AM, coati <dwkim78@…287…> wrote:

I have a problem with show() command in my macbook machine (Leopard 10.5.8).

For example, if I run the script shown below

(let assume it is saved as ‘test.py’, and I run a command ‘python test.py’),

plot([1,2,3,4,5])

show() #first window

plot([1,2,3,4,5])

show() #second window

plot([1,2,3,4,5])

show() #third window

Then the first window just pops up and I can see a beautiful straight line

No problem so far.

But, after I close the first window by clicking the close button of the

window,

other two window (second and third) just pops up and close themselves

instantly

even though I didn’t click the close button…

Also, the second and third plot is shown in the same window.

I don’t have such problem in my Ubuntu machine…

Does anybody know reasons?

show() actually handles starting the GUI mainloop, so you really shouldn’t be calling it more than once from a script. Quite frankly, it’s more amazing that it works on your Ubuntu macine. If you’re wanting 3 separate windows, try:

plot([1,2,3,4,5])

figure()

plot([1,2,3,4,5])

figure()

plot([1,2,3,4,5])
show()

Ryan

–
Ryan May

Graduate Research Assistant
School of Meteorology
University of Oklahoma

Thanks Ryan,

Hm… it’s a bit strange… I just installed matplotlib at Ubuntu using the package manager
And, another linux machines (red hat enterprise) can do this too. For the RHELs, I compiled matplotlib source code by myself.

figure() works very well, but what I want to do is to check the plots one by one and thus
I can exit the script at any time I want (because I usually have lots of figures to check and I don’t want
to pop up every of them at the same time…)

Anyway, thank you very much!

Michiel_de_Hoon1 · August 20, 2009, 2:01pm

Whether or not you can do multiple show()s depends on which backend you use. For example, the Mac OS X native backend has no problems with the multiple show()s in your example. Which backend were you using? While matplotlib does not support multiple show()s in general, there may be a simple solution to get that working for the backend you are using.

--Michiel.

···

--- On Wed, 8/19/09, Kim, Dae-Won <dwkim78@...287...> wrote:

From: Kim, Dae-Won <dwkim78@...287...>
Subject: Re: [Matplotlib-users] show() problem in Mac OS X 10.5.8
To: "Ryan May" <rmay31@...287...>
Cc: matplotlib-users@lists.sourceforge.net
Date: Wednesday, August 19, 2009, 2:48 PM

The one 'preliminary' solution I found is using
an interactive mode + raw_input.
Here is and example,
    ion\(\)
    plot\(\[1,2,3,4,5\]\)
    raw\_input\(&#39;Type Enter&#39;\)
    clf\(\)

    plot\(\[1,2,3,4,5\]\)
    raw\_input\(&#39;Type\_Enter&#39;\)
    clf\(\)
    plot\(\[1,2,3,4,5\]\)
    show\(\)
With this approach, I can press the enter when I want to
see next figure.

Though It's not as convenient as 'multiple
show()'..

On Wed, Aug 19, 2009 at 1:57 PM, > Kim, Dae-Won <dwkim78@...287...> > wrote:

On Wed, Aug 19, 2009 at 1:02 PM, > Ryan May <rmay31@...287...> > wrote:

On Wed, Aug 19, 2009 at 11:55 > AM, coati <dwkim78@...287...> > wrote:

I have a problem with show() command in my macbook
machine (Leopard 10.5.8).

For example, if I run the script shown below

(let assume it is saved as 'test.py', and I run a
command 'python test.py'),

---------------------------------------

plot([1,2,3,4,5])

show() #first window

plot([1,2,3,4,5])

show() #second window

plot([1,2,3,4,5])

show() #third window

---------------------------------------

Then the first window just pops up and I can see a
beautiful straight line

No problem so far.

But, after I close the first window by clicking the close
button of the

window,

other two window (second and third) just pops up and close
themselves

instantly

even though I didn't click the close button...

Also, the second and third plot is shown in the same
window.

I don't have such problem in my Ubuntu machine..

Does anybody know reasons?
show() actually handles starting the GUI mainloop, so you
really shouldn't be calling it more than once from a
script. Quite frankly, it's more amazing that it works
on your Ubuntu macine. If you're wanting 3 separate
windows, try:

plot([1,2,3,4,5])
figure()
plot([1,2,3,4,5])
figure()
plot([1,2,3,4,5])
show()

Ryan

--
Ryan May

Graduate Research Assistant
School of Meteorology
University of Oklahoma

Thanks Ryan,

Hm.. it's a bit strange.. I just installed matplotlib
at Ubuntu using the package manager
And, another linux machines (red hat enterprise) can do
this too. For the RHELs, I compiled matplotlib source code
by myself.

figure() works very well, but what I want to do is to check
the plots one by one and thus
I can exit the script at any time I want (because I usually
have lots of figures to check and I don't want
to pop up every of them at the same time..)

Anyway, thank you very much!

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_Kim_Dae-Won · August 20, 2009, 2:26pm

I tested with TKAgg and WXAgg. I just bought macbook and I’m newbie yet. Do I need to set something special for the multiple show()s?

Thanks,

-Dae-Won

···

On Thu, Aug 20, 2009 at 10:01 AM, Michiel de Hoon <mjldehoon@…9…> wrote:

Whether or not you can do multiple show()s depends on which backend you use. For example, the Mac OS X native backend has no problems with the multiple show()s in your example. Which backend were you using? While matplotlib does not support multiple show()s in general, there may be a simple solution to get that working for the backend you are using.

–Michiel.

— On Wed, 8/19/09, Kim, Dae-Won <dwkim78@…287…> wrote:

From: Kim, Dae-Won <dwkim78@…878…287…>

Subject: Re: [Matplotlib-users] show() problem in Mac OS X 10.5.8

To: “Ryan May” <rmay31@…287…>

Cc: matplotlib-users@lists.sourceforge.net

Date: Wednesday, August 19, 2009, 2:48 PM

The one ‘preliminary’ solution I found is using

an interactive mode + raw_input.

Here is and example,
    ion()
    plot([1,2,3,4,5])
    raw_input('Type Enter')
    clf()
    plot([1,2,3,4,5])
    raw_input('Type_Enter')
    clf()
    plot([1,2,3,4,5])
    show()
With this approach, I can press the enter when I want to

see next figure.

Though It’s not as convenient as 'multiple

show()'…

On Wed, Aug 19, 2009 at 1:57 PM, > > > Kim, Dae-Won <dwkim78@…1896…> > > > wrote:

On Wed, Aug 19, 2009 at 1:02 PM, > > > Ryan May <rmay31@…287…> > > > wrote:

On Wed, Aug 19, 2009 at 11:55 > > > AM, coati <dwkim78@…287…> > > > wrote:

I have a problem with show() command in my macbook

machine (Leopard 10.5.8).

For example, if I run the script shown below

(let assume it is saved as ‘test.py’, and I run a

command ‘python test.py’),

plot([1,2,3,4,5])

show() #first window

plot([1,2,3,4,5])

show() #second window

plot([1,2,3,4,5])

show() #third window

Then the first window just pops up and I can see a

beautiful straight line

No problem so far.

But, after I close the first window by clicking the close

button of the

window,

other two window (second and third) just pops up and close

themselves

instantly

even though I didn’t click the close button…

Also, the second and third plot is shown in the same

window.

I don’t have such problem in my Ubuntu machine…

Does anybody know reasons?

show() actually handles starting the GUI mainloop, so you

really shouldn’t be calling it more than once from a

script. Quite frankly, it’s more amazing that it works

on your Ubuntu macine. If you’re wanting 3 separate

windows, try:

plot([1,2,3,4,5])

figure()

plot([1,2,3,4,5])

figure()

plot([1,2,3,4,5])

show()

Ryan

–

Ryan May

Graduate Research Assistant

School of Meteorology

University of Oklahoma

Thanks Ryan,

Hm… it’s a bit strange… I just installed matplotlib

at Ubuntu using the package manager

And, another linux machines (red hat enterprise) can do

this too. For the RHELs, I compiled matplotlib source code

by myself.

figure() works very well, but what I want to do is to check

the plots one by one and thus

I can exit the script at any time I want (because I usually

have lots of figures to check and I don’t want

to pop up every of them at the same time…)

Anyway, thank you very much!

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Michiel_de_Hoon1 · August 22, 2009, 6:42am

Does anybody know why the show._needmain stuff is needed in the show() function in backend_tkagg.py? Currently, this function is as follows:

def show():
"""
Show all the figures and enter the gtk mainloop

    This should be the last line of your script. This function sets
    interactive mode to True, as detailed on
    http://matplotlib.sf.net/interactive.html
    """
    for manager in Gcf.get_all_fig_managers():
        manager.show()
    import matplotlib
    matplotlib.interactive(True)
    if rcParams['tk.pythoninspect']:
        os.environ['PYTHONINSPECT'] = '1'
    if show._needmain:
        Tk.mainloop()
        show._needmain = False
show._needmain = True

If I remove the show._needmain stuff, as in:

def show():
"""
Show all the figures and enter the gtk mainloop

    This should be the last line of your script. This function sets
    interactive mode to True, as detailed on
    http://matplotlib.sf.net/interactive.html
    """
    for manager in Gcf.get_all_fig_managers():
        manager.show()
    import matplotlib
    matplotlib.interactive(True)
    if rcParams['tk.pythoninspect']:
        os.environ['PYTHONINSPECT'] = '1'
    Tk.mainloop()

then the function still seems to work fine, and multiple show()s also works.

--Michiel.

···

--- On Thu, 8/20/09, Kim, Dae-Won <dwkim78@...287...> wrote:

From: Kim, Dae-Won <dwkim78@...287...>
Subject: Re: [Matplotlib-users] show() problem in Mac OS X 10.5.8
To: "Michiel de Hoon" <mjldehoon@...9...>
Cc: "Ryan May" <rmay31@...287...>, matplotlib-users@lists.sourceforge.net
Date: Thursday, August 20, 2009, 10:26 AM

I tested with TKAgg and WXAgg. I just bought macbook and
I'm newbie yet. Do I need to set something special for
the multiple show()s?

Thanks,

-Dae-Won

On Thu, Aug 20, 2009 at 10:01 AM, > Michiel de Hoon <mjldehoon@...9...> > wrote:

Whether or not you can do multiple
show()s depends on which backend you use. For example, the
Mac OS X native backend has no problems with the multiple
show()s in your example. Which backend were you using? While
matplotlib does not support multiple show()s in general,
there may be a simple solution to get that working for the
backend you are using.

--Michiel.

--- On Wed, 8/19/09, Kim, Dae-Won <dwkim78@...287...> > wrote:

> From: Kim, Dae-Won <dwkim78@...287...>

> Subject: Re: [Matplotlib-users] show() problem in Mac
OS X 10.5.8

> To: "Ryan May" <rmay31@...287...>

> Cc: matplotlib-users@lists.sourceforge.net

> Date: Wednesday, August 19, 2009, 2:48 PM

>

> The one 'preliminary' solution I found is
using

> an interactive mode + raw_input.

> Here is and example,

>

> ion()

> plot([1,2,3,4,5])

> raw_input('Type Enter')

> clf()

>

>

> plot([1,2,3,4,5])

> raw_input('Type_Enter')

> clf()

> plot([1,2,3,4,5])

> show()

>

> With this approach, I can press the enter when I want
to

> see next figure.

>

>

>

> Though It's not as convenient as 'multiple

> show()'..

>

>

> On Wed, Aug 19, 2009 at 1:57 PM, > > > Kim, Dae-Won <dwkim78@...287...> > > > wrote:

>

>

>

>

> On Wed, Aug 19, 2009 at 1:02 PM, > > > Ryan May <rmay31@...287...> > > > wrote:

>

>

>

> On Wed, Aug 19, 2009 at 11:55 > > > AM, coati <dwkim78@...287...> > > > wrote:

>

>

>

>

>

>

>

> I have a problem with show() command in my macbook

> machine (Leopard 10.5.8).

>

> For example, if I run the script shown below

>

> (let assume it is saved as 'test.py', and I
run a

> command 'python test.py'),

>

>

>

> ---------------------------------------

>

>

>

> plot([1,2,3,4,5])

>

> show() #first window

>

> plot([1,2,3,4,5])

>

> show() #second window

>

> plot([1,2,3,4,5])

>

> show() #third window

>

>

>

> ---------------------------------------

>

>

>

> Then the first window just pops up and I can see a

> beautiful straight line

>

> No problem so far.

>

> But, after I close the first window by clicking the
close

> button of the

>

> window,

>

> other two window (second and third) just pops up and
close

> themselves

>

> instantly

>

> even though I didn't click the close button...

>

> Also, the second and third plot is shown in the same

> window.

>

>

>

> I don't have such problem in my Ubuntu machine..

>

>

>

> Does anybody know reasons?

> show() actually handles starting the GUI mainloop, so
you

> really shouldn't be calling it more than once from
a

> script. Quite frankly, it's more amazing that it
works

> on your Ubuntu macine. If you're wanting 3
separate

> windows, try:

>

>

>

>

>

>

> plot([1,2,3,4,5])

> figure()

> plot([1,2,3,4,5])

> figure()

> plot([1,2,3,4,5])

> show()

>

> Ryan

>

> --

> Ryan May

>

> Graduate Research Assistant

> School of Meteorology

> University of Oklahoma

>

>

>

>

>

> Thanks Ryan,

>

> Hm.. it's a bit strange.. I just installed
matplotlib

> at Ubuntu using the package manager

> And, another linux machines (red hat enterprise) can
do

> this too. For the RHELs, I compiled matplotlib source
code

> by myself.

>

>

>

>

>

> figure() works very well, but what I want to do is to
check

> the plots one by one and thus

> I can exit the script at any time I want (because I
usually

> have lots of figures to check and I don't want

> to pop up every of them at the same time..)

>

>

>

>

>

> Anyway, thank you very much!

>

>

>

>

>

>

>

> -----Inline Attachment Follows-----

>

>
------------------------------------------------------------------------------

> Let Crystal Reports handle the reporting - Free
Crystal

> Reports 2008 30-Day

> trial. Simplify your report design, integration and

> deployment - and focus on

> what you do best, core application coding. Discover
what's

> new with

> Crystal Reports now. http://p.sf.net/sfu/bobj-july

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>

Alan_G_Isaac2 · August 22, 2009, 12:53pm

Define "works". It seems to me that you could
then have a script that tries to enter the mainloop
multiple times. I suspect "works" means that in
an interactive session you can enter and leave
the mainloop repeatedly?

Alan Isaac
(just another user)

···

On 8/22/2009 2:42 AM Michiel de Hoon apparently wrote:

Does anybody know why the show._needmain stuff is needed in the show() function in backend_tkagg.py?...
If I remove the show._needmain stuff ...
then the function still seems to work fine, and multiple show()s also works.