Re: [Matplotlib-users] EMF output: too many values to unpack error
Benjamin Root-2 wrote
On Thu, Jun 9, 2011 at 12:40 PM, Klonuo Umom lt;
klonuo@
gt; wrote:
I set up pull requests to fix this problem, so the v1.0.x-maint branch and
the master branch should soon have the fixes commited to them. You can
get
the latest bugfixed branch for v1.0.1 at
https://github.com/matplotlib/matplotlib/tree/v1.0.x-maint, although that
would mean having to build from source. You could also just edit your
copy
of the file C:\Python26\lib\site-
packages\matplotlib\backends\backend_emf.py so that [:3] is added to the
end
of lines 69 and 105. This page should show you what changes you need:
https://github.com/WeatherGod/matplotlib/commit/bf8d9d6f7cea1546c736d3897387698e6ae5e5b3
I hope that helps!
Ben Root
Hi,
I am having the same problem when trying to save a figure to a .emf file via
pylab.savefig().
I have tried updating backend_emf.py as suggested but this does not fix the
problem, it still has a problem with the updated code(see below).
The only difference I can see with the original poster is that I am using
backend_qt4agg.py rather than backend_wxagg.py in the original posters code.
This shouldn't change the fix, should it ?
pylab.savefig('nrg.emf')
Traceback (most recent call last):
File stdin, line 1, in module
File C:\Python26\lib\site-packages\matplotlib\pyplot.py, line 363, in
savefig
return fig.savefig(*args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\figure.py, line 1084, in
savefig
self.canvas.print_figure(*args, **kwargs)
File
C:\Python26\lib\site-packages\matplotlib\backends\backend_qt4agg.py, line
144, in print_figure
FigureCanvasAgg.print_figure(self, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\backend_bases.py, line
1923, in print_figure
**kwargs)
File C:\Python26\lib\site-packages\matplotlib\backend_bases.py, line
1723, in print_emf
return emf.print_emf(*args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py,
line 717, in print_emf
self.figure.draw(renderer)
File C:\Python26\lib\site-packages\matplotlib\artist.py, line 55, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\figure.py, line 738, in
draw
if self.frameon: self.patch.draw(renderer)
File C:\Python26\lib\site-packages\matplotlib\artist.py, line 55, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\patches.py, line 411, in
draw
renderer.draw_path(gc, tpath, affine, rgbFace)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py,
line 258, in draw_path
self.select_brush(rgbFace)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py,
line 565, in select_brush
brush=EMFBrush(self.emf,rgb)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py,
line 105, in __init__
r,g,b=rgb[:3]
ValueError: too many values to unpack
--
View this message in context:
http://matplotlib.1069221.n5.nabble.com/EMF-output-too-many-values-to-unpack-error-tp11466p39267.html
Sent from the matplotlib - users mailing list archive at Nabble.com.
--
Don't let slow site performance ruin your business. Deploy New Relic APM
Deploy New Relic app performance management and know exactly
what is happening inside your Ruby, Python, PHP, Java, and .NET app
Try New Relic at no cost today and get our sweet Data Nerd shirt too!
http://p.sf.net/sfu/newrelic-dev2dev
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] EMF output: too many values to unpack error
On Fri, Oct 5, 2012 at 6:38 AM, Usjes oisin...@yahoo.co.uk wrote: Benjamin Root-2 wrote On Thu, Jun 9, 2011 at 12:40 PM, Klonuo Umom klonuo@ wrote: I set up pull requests to fix this problem, so the v1.0.x-maint branch and the master branch should soon have the fixes commited to them. You can get the latest bugfixed branch for v1.0.1 at https://github.com/matplotlib/matplotlib/tree/v1.0.x-maint, although that would mean having to build from source. You could also just edit your copy of the file C:\Python26\lib\site- packages\matplotlib\backends\backend_emf.py so that [:3] is added to the end of lines 69 and 105. This page should show you what changes you need: https://github.com/WeatherGod/matplotlib/commit/bf8d9d6f7cea1546c736d3897387698e6ae5e5b3 I hope that helps! Ben Root Hi, I am having the same problem when trying to save a figure to a .emf file via pylab.savefig(). I have tried updating backend_emf.py as suggested but this does not fix the problem, it still has a problem with the updated code(see below). The only difference I can see with the original poster is that I am using backend_qt4agg.py rather than backend_wxagg.py in the original posters code. This shouldn't change the fix, should it ? Does it fail for the example I originally gave? from pylab import * plot([1, 2, 3]) savefig(foobar.emf) Ben Root -- Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] EMF output: too many values to unpack error
Benjamin Root-2 wrote On Fri, Oct 5, 2012 at 6:38 AM, Usjes lt; oisin_nz@.co gt; wrote: Does it fail for the example I originally gave? from pylab import * plot([1, 2, 3]) savefig(foobar.emf) Ben Root Yes, it fails even with the simple plot suggested; see log below. I am new to Python but I did also try inserting the command: print rgb preceding the offending line, to get an idea of what the dimensions of 'rgb' are but the print statement also fails due to 'too many values to unpack' savefig(foobar.emf) Traceback (most recent call last): File stdin, line 1, in module File C:\Python26\lib\site-packages\matplotlib\pyplot.py, line 363, in savefig return fig.savefig(*args, **kwargs) File C:\Python26\lib\site-packages\matplotlib\figure.py, line 1084, in savefig self.canvas.print_figure(*args, **kwargs) File C:\Python26\lib\site-packages\matplotlib\backends\backend_qt4agg.py, line 144, in print_figure FigureCanvasAgg.print_figure(self, *args, **kwargs) File C:\Python26\lib\site-packages\matplotlib\backend_bases.py, line 1923, in print_figure **kwargs) File C:\Python26\lib\site-packages\matplotlib\backend_bases.py, line 1723, in print_emf return emf.print_emf(*args, **kwargs) File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py, line 717, in print_emf self.figure.draw(renderer) File C:\Python26\lib\site-packages\matplotlib\artist.py, line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File C:\Python26\lib\site-packages\matplotlib\figure.py, line 738, in draw if self.frameon: self.patch.draw(renderer) File C:\Python26\lib\site-packages\matplotlib\artist.py, line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File C:\Python26\lib\site-packages\matplotlib\patches.py, line 411, in draw renderer.draw_path(gc, tpath, affine, rgbFace) File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py, line 258, in draw_path self.select_brush(rgbFace) File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py, line 565, in select_brush brush=EMFBrush(self.emf,rgb) File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py, line 105, in __init__ r,g,b=rgb[:3] ValueError: too many values to unpack -- View this message in context: http://matplotlib.1069221.n5.nabble.com/EMF-output-too-many-values-to-unpack-error-tp11466p39275.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] EMF output: too many values to unpack error
On 9 June 2011 15:13, Klonuo Umom klo...@gmail.com wrote: Trying to save plot as EMF, after installing pyemf 2.0 raises this error: too many values to unpack Some code sample would help. It means what it says - trying to assign tuples or whatever to too few values, e.g.: x,y= (1,2,3) Is the error raised in your code or a library? --- Nick -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] EMF output: too many values to unpack error
On 09.06.2011 18:06:57 Nick Veitch wrote: Some code sample would help. It means what it says - trying to assign tuples or whatever to too few values, e.g.: x,y= (1,2,3) Is the error raised in your code or a library? Take any for example, like 'plot([1,2,3])' it doesn't matter I described my environment: I use matplotlib through IPython on Windows XP with Python 2.6.6 and Qt4Agg as backend Qt backend shows the plot, then I press save icon and choose EMF. Next, Qt pops dialog saying 'too many values to unpack'. Same happens also with WXAgg. Seems like it's something broken between matplotlib and pyemf, but I don't see how I can trace this Saving PNG, EPS works fine as expected -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] EMF output: too many values to unpack error
On Thu, Jun 9, 2011 at 11:19 AM, Klonuo Umom klo...@gmail.com wrote:
On 09.06.2011 18:06:57 Nick Veitch wrote:
Some code sample would help. It means what it says - trying to assign
tuples or whatever to too few values, e.g.:
x,y= (1,2,3)
Is the error raised in your code or a library?
Take any for example, like 'plot([1,2,3])' it doesn't matter
I described my environment: I use matplotlib through IPython on Windows
XP with Python 2.6.6 and Qt4Agg as backend
Qt backend shows the plot, then I press save icon and choose EMF. Next,
Qt pops dialog saying 'too many values to unpack'.
Same happens also with WXAgg. Seems like it's something broken between
matplotlib and pyemf, but I don't see how I can trace this
Saving PNG, EPS works fine as expected
Question, does the following cause the same error?
from pylab import *
plot([1, 2, 3])
savefig('foobar.emf')
There might be an important difference between saving from the save dialog
and saving directly through the savefig command.
Ben Root
--
EditLive Enterprise is the world's most technically advanced content
authoring tool. Experience the power of Track Changes, Inline Image
Editing and ensure content is compliant with Accessibility Checking.
http://p.sf.net/sfu/ephox-dev2dev___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] EMF output: too many values to unpack error
On 09.06.2011 18:47:42 Benjamin Root wrote:
Question, does the following cause the same error?
from pylab import *
plot([1, 2, 3])
savefig('foobar.emf')
There might be an important difference between saving from the save dialog
and saving directly through the savefig command.
Good idea. Here is trace (I called your snippet mpl.py):
Traceback (most recent call last):
File C:\Python26\Scripts\mpl.py, line 3, in module
savefig('foobar.emf')
File C:\Python26\lib\site-packages\matplotlib\pyplot.py, line 363, in
savefig
return fig.savefig(*args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\figure.py, line 1084, in
savefig
self.canvas.print_figure(*args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_wxagg.py,
line 100, in print_figure
FigureCanvasAgg.print_figure(self, filename, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\backend_bases.py, line 1923,
in print_figure
**kwargs)
File C:\Python26\lib\site-packages\matplotlib\backend_bases.py, line 1723,
in print_emf
return emf.print_emf(*args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py, line
717, in print_emf
self.figure.draw(renderer)
File C:\Python26\lib\site-packages\matplotlib\artist.py, line 55, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\figure.py, line 738, in draw
if self.frameon: self.patch.draw(renderer)
File C:\Python26\lib\site-packages\matplotlib\artist.py, line 55, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\patches.py, line 411, in draw
renderer.draw_path(gc, tpath, affine, rgbFace)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py, line
258, in draw_path
self.select_brush(rgbFace)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py, line
565, in select_brush
brush=EMFBrush(self.emf,rgb)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py, line
105, in __init__
r,g,b=rgb
ValueError: too many values to unpack
--
EditLive Enterprise is the world's most technically advanced content
authoring tool. Experience the power of Track Changes, Inline Image
Editing and ensure content is compliant with Accessibility Checking.
http://p.sf.net/sfu/ephox-dev2dev
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] EMF output: too many values to unpack error
On Thu, Jun 9, 2011 at 11:56 AM, Klonuo Umom klo...@gmail.com wrote:
On 09.06.2011 18:47:42 Benjamin Root wrote:
Question, does the following cause the same error?
from pylab import *
plot([1, 2, 3])
savefig('foobar.emf')
There might be an important difference between saving from the save
dialog
and saving directly through the savefig command.
Good idea. Here is trace (I called your snippet mpl.py):
Traceback (most recent call last):
File C:\Python26\Scripts\mpl.py, line 3, in module
savefig('foobar.emf')
File C:\Python26\lib\site-packages\matplotlib\pyplot.py, line 363, in
savefig
return fig.savefig(*args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\figure.py, line 1084, in
savefig
self.canvas.print_figure(*args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_wxagg.py,
line 100, in print_figure
FigureCanvasAgg.print_figure(self, filename, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\backend_bases.py, line
1923, in print_figure
**kwargs)
File C:\Python26\lib\site-packages\matplotlib\backend_bases.py, line
1723, in print_emf
return emf.print_emf(*args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py,
line 717, in print_emf
self.figure.draw(renderer)
File C:\Python26\lib\site-packages\matplotlib\artist.py, line 55, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\figure.py, line 738, in
draw
if self.frameon: self.patch.draw(renderer)
File C:\Python26\lib\site-packages\matplotlib\artist.py, line 55, in
draw_wrapper
draw(artist, renderer, *args, **kwargs)
File C:\Python26\lib\site-packages\matplotlib\patches.py, line 411, in
draw
renderer.draw_path(gc, tpath, affine, rgbFace)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py,
line 258, in draw_path
self.select_brush(rgbFace)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py,
line 565, in select_brush
brush=EMFBrush(self.emf,rgb)
File C:\Python26\lib\site-packages\matplotlib\backends\backend_emf.py,
line 105, in __init__
r,g,b=rgb
ValueError: too many values to unpack
Ah, so the bug is in the emf backend. Which version of matplotlib are you
using?
import matplotlib
print matplotlib.__version__
Ben Root
--
EditLive Enterprise is the world's most technically advanced content
authoring tool. Experience the power of Track Changes, Inline Image
Editing and ensure content is compliant with Accessibility Checking.
http://p.sf.net/sfu/ephox-dev2dev___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] EMF output: too many values to unpack error
On Thu, Jun 9, 2011 at 12:40 PM, Klonuo Umom klo...@gmail.com wrote: On 09.06.2011 19:29:35 Benjamin Root wrote: I looks like backend_emf.py is choking on rgba values. Is EMF unable to handle Alpha channels? The fix should be fairly easy, though. I have no idea. I installed pyemf today as mpl asked me to if I want to export to EMF. I wanted to use EMF as it's most convenient to use in Word. Hassle free vector format that MS likes. It's not problem for me to convert PS/EPS to EMF, thou problem should be known I set up pull requests to fix this problem, so the v1.0.x-maint branch and the master branch should soon have the fixes commited to them. You can get the latest bugfixed branch for v1.0.1 at https://github.com/matplotlib/matplotlib/tree/v1.0.x-maint, although that would mean having to build from source. You could also just edit your copy of the file C:\Python26\lib\site- packages\matplotlib\backends\backend_emf.py so that [:3] is added to the end of lines 69 and 105. This page should show you what changes you need: https://github.com/WeatherGod/matplotlib/commit/bf8d9d6f7cea1546c736d3897387698e6ae5e5b3 I hope that helps! Ben Root -- EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
