Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
Dear Sandro, First of all, I apologize for the delay in replying -- yesterday was already late night here and I also had to fight (???) a kernel panic in my Linux box the cause of which is not yet clear (I also had it under Ubuntu Hardy and now it appeared in Intrepid -- under Hardy, I substituted my only RAM chip and the problem disappeared, but now I think the problem may be related to overheating -- it is the hottest tropical summer here down under!). Well, after following the steps you provided for creating the Debian package for MPL, and installing all required dependencies, I still could not create the package -- the reason is that the program keeps complaining about an older version of python-sphinx, even if I upgraded to the latest version it using easy_install... Maybe I will have to build sphinx from souce too? With best regards, 2009/1/12 Sandro Tosi mo...@debian.org: On Mon, Jan 12, 2009 at 19:52, Mauro Cavalcanti mauro...@gmail.com wrote: I must say I feel truly honoured. I never expected my humble complaint would merit the attention of one of the Debian maintainters! eheh, well, we are not some sort of gods or what: we talk to mortals now :D I will follow the directions you provided - as I understood, they will result in the creation of a deb package for the latest version of Matplotlib? This will be great! Yes: Ubuntu is a Debian-based distribution, so once you'll have the deb files (built on your ubuntu box) it enough to sudo dpkg -i python-matplotlib*.deb and it will install them I will report the results to you (and the Matplotlib-users lists) as soon as possible. Great. The only problem I see is that there are a lot of caveats in building packages, and you can face some corner case (I couldn't cope in my uber-fast introduction to deb building :) ). Regards, -- Sandro Tosi (aka morph, morpheus, matrixhasu) My website: http://matrixhasu.altervista.org/ Me at Debian: http://wiki.debian.org/SandroTosi -- Dr. Mauro J. Cavalcanti Ecoinformatics Studio P.O. Box 46521, CEP 20551-970 Rio de Janeiro, RJ, BRASIL E-mail: mauro...@gmail.com Web: http://studio.infobio.net Linux Registered User #473524 * Ubuntu User #22717 Life is complex. It consists of real and imaginary parts. -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
On Tue, Jan 13, 2009 at 13:20, Mauro Cavalcanti mauro...@gmail.com wrote: Dear Sandro, First of all, I apologize for the delay in replying -- yesterday was already late night here and I also had to fight (???) a kernel panic in my Linux box the cause of which is not yet clear (I also had it under Ubuntu Hardy and now it appeared in Intrepid -- under Hardy, I substituted my only RAM chip and the problem disappeared, but now I think the problem may be related to overheating -- it is the hottest tropical summer here down under!). Well, after following the steps you provided for creating the Debian package for MPL, and installing all required dependencies, I still could not create the package -- the reason is that the program keeps complaining about an older version of python-sphinx, even if I upgraded to the latest version it using easy_install... Maybe I will have to build sphinx from souce too? Well, honestly I don't know and I don't want to invest too much time on this: I'll provide the compiled packages (even if still temporary, waiting for Matplotlib developers to release 0.98.5.3) tomorrow, and then I'll post the location on the list. They will be for Debian Sid, so they might not work out of the box and you might need to get other packages from Debian and install into Ubuntu. Regards, -- Sandro Tosi (aka morph, morpheus, matrixhasu) My website: http://matrixhasu.altervista.org/ Me at Debian: http://wiki.debian.org/SandroTosi -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
Dear Sandro, After sending you the previous message, I just decided to try one little thing: I used easy_install -U matplotlib and then the latest version (0.98.5.2) was correctly retrieved from the SF repository and properly installed (before followed the instructions you provided yesterday, this procedure did not result). And then I now have MPL completely working again on my Ubuntu Intrepid box! Thank you very much for your attention. With best regards, 2009/1/13 Sandro Tosi mo...@debian.org: Well, honestly I don't know and I don't want to invest too much time on this: I'll provide the compiled packages (even if still temporary, waiting for Matplotlib developers to release 0.98.5.3) tomorrow, and then I'll post the location on the list. They will be for Debian Sid, so they might not work out of the box and you might need to get other packages from Debian and install into Ubuntu. Regards, -- Sandro Tosi (aka morph, morpheus, matrixhasu) My website: http://matrixhasu.altervista.org/ Me at Debian: http://wiki.debian.org/SandroTosi -- Dr. Mauro J. Cavalcanti Ecoinformatics Studio P.O. Box 46521, CEP 20551-970 Rio de Janeiro, RJ, BRASIL E-mail: mauro...@gmail.com Web: http://studio.infobio.net Linux Registered User #473524 * Ubuntu User #22717 Life is complex. It consists of real and imaginary parts. -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
Dear ALL, I just found the following error when trying to run a very simple test MPL/Basemap script under Ubuntu Linux Intrepid. This does *not* happen when not importing MPL pyplot (for example, in a wxPython embedded app). Traceback (most recent call last): File /home/maurobio/Projetos/Croizat/test/mexico.py, line 2, in module import matplotlib.pyplot as plt File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/pyplot.py, line 75, in module new_figure_manager, draw_if_interactive, show = pylab_setup() File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/__init__.py, line 25, in pylab_setup globals(),locals(),[backend_name]) File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gtkagg.py, line 10, in module from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,\ File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gtk.py, line 25, in module from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gdk.py, line 29, in module from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array ImportError: libffi.so.4: cannot open shared object file: No such file or directory Any hints??? I am near panic now... Thanks in advance! -- Dr. Mauro J. Cavalcanti Ecoinformatics Studio P.O. Box 46521, CEP 20551-970 Rio de Janeiro, RJ, BRASIL E-mail: mauro...@gmail.com Web: http://studio.infobio.net Linux Registered User #473524 * Ubuntu User #22717 Life is complex. It consists of real and imaginary parts. -- Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
On Mon, Jan 12, 2009 at 8:44 AM, Mauro Cavalcanti mauro...@gmail.comwrote: Dear ALL, I just found the following error when trying to run a very simple test MPL/Basemap script under Ubuntu Linux Intrepid. This does *not* happen when not importing MPL pyplot (for example, in a wxPython embedded app). Traceback (most recent call last): File /home/maurobio/Projetos/Croizat/test/mexico.py, line 2, in module import matplotlib.pyplot as plt File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/pyplot.py, line 75, in module new_figure_manager, draw_if_interactive, show = pylab_setup() File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/__init__.py, line 25, in pylab_setup globals(),locals(),[backend_name]) File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gtkagg.py, line 10, in module from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,\ File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gtk.py, line 25, in module from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gdk.py, line 29, in module from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array ImportError: libffi.so.4: cannot open shared object file: No such file or directory Any hints??? I am near panic now... No need to panic. It looks like your default backend has been set to gtkagg. I think you just need to set your backend to wxagg in your matplotlibrc file: http://matplotlib.sourceforge.net/users/customizing.html P.S. pyplot should not be used in an embedded environment, that interface is meant for command line and scripting use. For embedded applications, you should use the object-oriented interface. There are several wx examples at http://matplotlib.sourceforge.net/examples/user_interfaces/index.html -- Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
On Mon, Jan 12, 2009 at 7:44 AM, Mauro Cavalcanti mauro...@gmail.com wrote: Dear ALL, I just found the following error when trying to run a very simple test MPL/Basemap script under Ubuntu Linux Intrepid. This does *not* happen when not importing MPL pyplot (for example, in a wxPython embedded app). Traceback (most recent call last): from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,\ File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gtk.py, line 25, in module from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gdk.py, line 29, in module from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array ImportError: libffi.so.4: cannot open shared object file: No such file or directory Any hints??? I am near panic now... No one ever made a dime by panicking :-) Did you compile mpl yourself or are you using a prepackaged version? If you are using the ubuntu package of mpl, this is likely a bug with the package and should be reported to ubuntu. If you compiled yourself, what version are you using? Can you attach the output of a clean build process? See:: http://matplotlib.sourceforge.net/faq/troubleshooting_faq.html#reporting-problems Note that the problem appears in the gtk backend, so if it turns out to be an ubuntu problem and you need a solution right away, you should be able to use a different backend, eg tkagg, but please take the time to report it to the ubuntu package maintainer if it has not been already. It looks like it is related to this debian bug http://osdir.com/ml/linux.debian.devel.python.modules/2008-05/msg9.html I've CCd Sandro (the debian, not the ubuntu, maintainter) who may have more information. JDH -- Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
Dear John Darren, Thanks for your reply -- the panic I alluded for is simply the result of three months' strain working day-by-day to develop a very large application using wxPython/MPL/Basemap under Linux, along with a RAM crash and, more recently, an upgrade form Ubuntu 8.04 (Hardy Heron) to Ubuntu 8.10 (Intrepid Ibex -- I love the fondness the guys at Canonical have for zoology). Well, that said, here are my reply to the questions and comments: 1) I am not using pyplot in an embedded environment. Indeed, MPL/Basemap is running very well embedded in my wxPython application, *without* pyplot of course. The reported error appears only when I try any test script using pyplot (these scripts are useful for testing ideas in an interpreted language as Python, before putting them to work in a GUI application). My application uses the wxagg backends, which are work well. 2) All scripts using pyplot ran quite well under Ubuntu Hardy; they are just presenting these issues after I upgraded to Intrepid (which, BTW, looks much more stable in my system than was Hardy -- except for this problem with MPL) 3) I am running MPL 0.98.5.1, installed with Ubuntu itself. I ran sudo easy_install matplotlib in an attempt to install version 0.98.5.2, but this gave no result (easy_Install tells me that I already have the latest version of MPL) Well, I have googled the error message: ImportError: libffi.so.4: cannot open shared object file: No such file or directory and it seems that a few other Python applications are crashing with this error under Ubuntu Intrepid (but I could not find any solution, just error reports). I am not sure if compiling from source would help in this case, because the error seems to be related to a missing system (?) library and not to MPL or any of the backends. So, for the time being, it looks that I cannot use MPL with pyplot anymore, which is not entirely a huge problem (as I do not use the library in MATLAB-style anyway) , but prevents me to use it to fast testing of Basemap scripts. With best regards, 2009/1/12 John Hunter jdh2...@gmail.com: On Mon, Jan 12, 2009 at 7:44 AM, Mauro Cavalcanti mauro...@gmail.com wrote: Dear ALL, I just found the following error when trying to run a very simple test MPL/Basemap script under Ubuntu Linux Intrepid. This does *not* happen when not importing MPL pyplot (for example, in a wxPython embedded app). Traceback (most recent call last): from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,\ File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gtk.py, line 25, in module from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK File /usr/lib/python2.5/site-packages/matplotlib-0.98.5.1-py2.5-linux-i686.egg/matplotlib/backends/backend_gdk.py, line 29, in module from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array ImportError: libffi.so.4: cannot open shared object file: No such file or directory Any hints??? I am near panic now... No one ever made a dime by panicking :-) Did you compile mpl yourself or are you using a prepackaged version? If you are using the ubuntu package of mpl, this is likely a bug with the package and should be reported to ubuntu. If you compiled yourself, what version are you using? Can you attach the output of a clean build process? See:: http://matplotlib.sourceforge.net/faq/troubleshooting_faq.html#reporting-problems Note that the problem appears in the gtk backend, so if it turns out to be an ubuntu problem and you need a solution right away, you should be able to use a different backend, eg tkagg, but please take the time to report it to the ubuntu package maintainer if it has not been already. It looks like it is related to this debian bug http://osdir.com/ml/linux.debian.devel.python.modules/2008-05/msg9.html I've CCd Sandro (the debian, not the ubuntu, maintainter) who may have more information. JDH -- Dr. Mauro J. Cavalcanti Ecoinformatics Studio P.O. Box 46521, CEP 20551-970 Rio de Janeiro, RJ, BRASIL E-mail: mauro...@gmail.com Web: http://studio.infobio.net Linux Registered User #473524 * Ubuntu User #22717 Life is complex. It consists of real and imaginary parts. -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
Hello Mauro, (thanks John to highlight me:) ) On Mon, Jan 12, 2009 at 17:50, Mauro Cavalcanti mauro...@gmail.com wrote: 3) I am running MPL 0.98.5.1, installed with Ubuntu itself. I ran sudo easy_install matplotlib in an attempt to install version 0.98.5.2, but this gave no result (easy_Install tells me that I already have the latest version of MPL) I'm the Debian maint (while working with Ubuntu one) so I suggest to use the code in our SVN repository to build the package: get the mpl tarball, v0.98.5.2 should be fine, name it matplotlib_0.98.5.2.orig.tar.gz untar it in a dir called matplotlib-0.98.5.2, that will contain the mpl files cd matplotlib-0.98.5.2 svn co svn://svn.debian.org/svn/python-modules/packages/matplotlib/trunk/debian/ sudo apt-get install build-essential debuild -us -uc install the missing build-dependencies returned from above commands and reiter if needed It's a little bit tedious (and the build will take a while) but in .. you should find the .deb to install. If someone would release .3, we could package it for Debian systems :) :) Well, I have googled the error message: ImportError: libffi.so.4: cannot open shared object file: No such file or directory and it seems that a few other Python applications are crashing with this error under Ubuntu Intrepid (but I could not find any solution, just error reports). libffi received a SONAME bump to .5 (infact, now the package is called libffi5), so there might be something still referring the old library, that probably went removed during upgrade (Ubuntu QA work.) I am not sure if compiling from source would help in this case, because the error seems to be related to a missing system (?) library and not to MPL or any of the backends. yes, it would help. because relinking to new lib will fix those broken links. Let us know any progress. Regards, -- Sandro Tosi (aka morph, morpheus, matrixhasu) My website: http://matrixhasu.altervista.org/ Me at Debian: http://wiki.debian.org/SandroTosi -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
Dear Sandro, I must say I feel truly honoured. I never expected my humble complaint would merit the attention of one of the Debian maintainters! Well, thank you very much! I will follow the directions you provided - as I understood, they will result in the creation of a deb package for the latest version of Matplotlib? This will be great! I will report the results to you (and the Matplotlib-users lists) as soon as possible. With warmest regards, 2009/1/12 Sandro Tosi mo...@debian.org: Hello Mauro, (thanks John to highlight me:) ) On Mon, Jan 12, 2009 at 17:50, Mauro Cavalcanti mauro...@gmail.com wrote: 3) I am running MPL 0.98.5.1, installed with Ubuntu itself. I ran sudo easy_install matplotlib in an attempt to install version 0.98.5.2, but this gave no result (easy_Install tells me that I already have the latest version of MPL) I'm the Debian maint (while working with Ubuntu one) so I suggest to use the code in our SVN repository to build the package: get the mpl tarball, v0.98.5.2 should be fine, name it matplotlib_0.98.5.2.orig.tar.gz untar it in a dir called matplotlib-0.98.5.2, that will contain the mpl files cd matplotlib-0.98.5.2 svn co svn://svn.debian.org/svn/python-modules/packages/matplotlib/trunk/debian/ sudo apt-get install build-essential debuild -us -uc install the missing build-dependencies returned from above commands and reiter if needed It's a little bit tedious (and the build will take a while) but in .. you should find the .deb to install. If someone would release .3, we could package it for Debian systems :) :) Well, I have googled the error message: ImportError: libffi.so.4: cannot open shared object file: No such file or directory and it seems that a few other Python applications are crashing with this error under Ubuntu Intrepid (but I could not find any solution, just error reports). libffi received a SONAME bump to .5 (infact, now the package is called libffi5), so there might be something still referring the old library, that probably went removed during upgrade (Ubuntu QA work.) I am not sure if compiling from source would help in this case, because the error seems to be related to a missing system (?) library and not to MPL or any of the backends. yes, it would help. because relinking to new lib will fix those broken links. Let us know any progress. Regards, -- Sandro Tosi (aka morph, morpheus, matrixhasu) My website: http://matrixhasu.altervista.org/ Me at Debian: http://wiki.debian.org/SandroTosi -- Dr. Mauro J. Cavalcanti Ecoinformatics Studio P.O. Box 46521, CEP 20551-970 Rio de Janeiro, RJ, BRASIL E-mail: mauro...@gmail.com Web: http://studio.infobio.net Linux Registered User #473524 * Ubuntu User #22717 Life is complex. It consists of real and imaginary parts. -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Problem with pyplot under Linux Ubuntu Intrepid
On Mon, Jan 12, 2009 at 19:52, Mauro Cavalcanti mauro...@gmail.com wrote: I must say I feel truly honoured. I never expected my humble complaint would merit the attention of one of the Debian maintainters! eheh, well, we are not some sort of gods or what: we talk to mortals now :D I will follow the directions you provided - as I understood, they will result in the creation of a deb package for the latest version of Matplotlib? This will be great! Yes: Ubuntu is a Debian-based distribution, so once you'll have the deb files (built on your ubuntu box) it enough to sudo dpkg -i python-matplotlib*.deb and it will install them I will report the results to you (and the Matplotlib-users lists) as soon as possible. Great. The only problem I see is that there are a lot of caveats in building packages, and you can face some corner case (I couldn't cope in my uber-fast introduction to deb building :) ). Regards, -- Sandro Tosi (aka morph, morpheus, matrixhasu) My website: http://matrixhasu.altervista.org/ Me at Debian: http://wiki.debian.org/SandroTosi -- This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
