Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
On 04/19/2013 03:26 AM, Mark Lawrence wrote: On 19/04/2013 04:03, John Ladasky wrote: Reading more, I realize that the way I was getting GUI output previously (with Python 2.7 and Matplotlib 1.1) was through wxPython. Unfortunately, it appears that wxPython's star is fading, and a Python 3-compatible version will not be written. In fact, wxPython hasn't released a new version in nine months. I'm surprised that you say this as months of work have gone into updating wxPython to make in Python 3 compatible. Please see http://wxpython.org/Phoenix/snapshot-builds/ for the latest and greatest. Well, that is good news. Just before my last message to this list, I visited wxpython.org, as I have done many times over the years. I saw no announcement that there would be a Python 3.x-compatible version. You would think that the developers would want everyone to know! -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
On Thu, Apr 18, 2013 at 11:03 PM, John Ladasky john_lada...@sbcglobal.netwrote: . Reading more, I realize that the way I was getting GUI output previously (with Python 2.7 and Matplotlib 1.1) was through wxPython. Unfortunately, it appears that wxPython's star is fading, and a Python 3-compatible version will not be written. In fact, wxPython hasn't released a new version in nine months. wxPython is alive and well and the newest developmental version of it (Phoenix) runs on Python 3. It should be released fairly soon. One of the wxPython list regulars mentioned getting his software to run with it, with a few minor issues, just six days ago. So you might want to give Phoenix a try. Che -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
I have used the TkAgg backend in python2, installing the dependencies by hand. Is this backend not available for python3? -Sterling On Apr 18, 2013, at 8:03PM, John Ladasky wrote: Thanks to both Francesco Montesano and Benjamin Root. I have done some reading. And I have made some progress, though I am not quite where I want to be yet. So the problem appears to be that the only backend for which I had suitable Python 3 libraries was agg. It only requires libpng, which I have. I can render a Matplotlib canvas, but it appears that the only output that agg offers is in the form of PNG files to disk. I cannot create a live window on the screen. Reading more, I realize that the way I was getting GUI output previously (with Python 2.7 and Matplotlib 1.1) was through wxPython. Unfortunately, it appears that wxPython's star is fading, and a Python 3-compatible version will not be written. In fact, wxPython hasn't released a new version in nine months. The other choices for Matplotlib GUI output on Linux appear to be through GTK, PySide, and PyQt. I am not familiar with GTK, but I know that it is widely-used. Also, GTK appears to be Python 3-compatible, and so that is where I need to go. I'm going through a trial and error process. Unfortunately, the names of the repositories in Ubuntu are not very helpful. I installed a few GTK and python-gtk related packages that I thought were relevant. On my first build attempt I got no errors, but also, I didn't get a GTKAgg backend. Upon re-reading, I saw that I should modify matplotlib's setup.cfg file to force a GTK build attempt, and to report errors if it fails. That's what it does. In the optional backend dependencies section I am not seeing any GTK libraries listed, even though I have installed python-gtk2-dev (2.24.0), python-gobject-2-dev (2.28.6), libgtk2.0-dev (2.24.10), libglib2.0-dev (2.32.3), python-gi-dev (3.2.2), python-gobject-dev (3.2.2), python3-gi (3.2.2), and a few DOZEN packages on which these depend. If anyone knows the way forward from here, I would appreciate your advice. Thanks again. -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
Hi John, on Kubuntu Precise the standard repo has at least: python3-pyqt4 python3-pyside python3-tk The first two should enable Qt4Agg backend, the last TkAgg Fra 2013/4/19 Sterling Smith smit...@fusion.gat.com I have used the TkAgg backend in python2, installing the dependencies by hand. Is this backend not available for python3? -Sterling On Apr 18, 2013, at 8:03PM, John Ladasky wrote: Thanks to both Francesco Montesano and Benjamin Root. I have done some reading. And I have made some progress, though I am not quite where I want to be yet. So the problem appears to be that the only backend for which I had suitable Python 3 libraries was agg. It only requires libpng, which I have. I can render a Matplotlib canvas, but it appears that the only output that agg offers is in the form of PNG files to disk. I cannot create a live window on the screen. Reading more, I realize that the way I was getting GUI output previously (with Python 2.7 and Matplotlib 1.1) was through wxPython. Unfortunately, it appears that wxPython's star is fading, and a Python 3-compatible version will not be written. In fact, wxPython hasn't released a new version in nine months. The other choices for Matplotlib GUI output on Linux appear to be through GTK, PySide, and PyQt. I am not familiar with GTK, but I know that it is widely-used. Also, GTK appears to be Python 3-compatible, and so that is where I need to go. I'm going through a trial and error process. Unfortunately, the names of the repositories in Ubuntu are not very helpful. I installed a few GTK and python-gtk related packages that I thought were relevant. On my first build attempt I got no errors, but also, I didn't get a GTKAgg backend. Upon re-reading, I saw that I should modify matplotlib's setup.cfg file to force a GTK build attempt, and to report errors if it fails. That's what it does. In the optional backend dependencies section I am not seeing any GTK libraries listed, even though I have installed python-gtk2-dev (2.24.0), python-gobject-2-dev (2.28.6), libgtk2.0-dev (2.24.10), libglib2.0-dev (2.32.3), python-gi-dev (3.2.2), python-gobject-dev (3.2.2), python3-gi (3.2.2), and a few DOZEN packages on which these depend. If anyone knows the way forward from here, I would appreciate your advice. Thanks again. -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
On 19/04/2013 04:03, John Ladasky wrote: Reading more, I realize that the way I was getting GUI output previously (with Python 2.7 and Matplotlib 1.1) was through wxPython. Unfortunately, it appears that wxPython's star is fading, and a Python 3-compatible version will not be written. In fact, wxPython hasn't released a new version in nine months. I'm surprised that you say this as months of work have gone into updating wxPython to make in Python 3 compatible. Please see http://wxpython.org/Phoenix/snapshot-builds/ for the latest and greatest. -- If you're using GoogleCrap™ please read this http://wiki.python.org/moin/GoogleGroupsPython. Mark Lawrence -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
On 19/04/2013 12:26, Mark Lawrence wrote: On 19/04/2013 04:03, John Ladasky wrote: Reading more, I realize that the way I was getting GUI output previously (with Python 2.7 and Matplotlib 1.1) was through wxPython. Unfortunately, it appears that wxPython's star is fading, and a Python 3-compatible version will not be written. In fact, wxPython hasn't released a new version in nine months. I'm surprised that you say this as months of work have gone into updating wxPython to make in Python 3 compatible. Please see http://wxpython.org/Phoenix/snapshot-builds/ for the latest and greatest. This one to the list - sorry Mark used the wrong reply button. I don't work on Python 3 yet but I am trying to get Phoenix to work with matplotlib. Made a few changes to backend_wx: Following don't exist in Phoenix (build r73823) - will research later if they should exist. #wx.WXK_PRIOR : 'pageup', #wx.WXK_NEXT: 'pagedown', #wx.WXK_NUMPAD_PRIOR: 'pageup', #wx.WXK_NUMPAD_NEXT : 'pagedown', There are a few EmptyBitMap creates which need to be changed to: if 'phoenix' in wx.PlatformInfo: self.bitmap = wx.Bitmap(w, h) else: self.bitmap = wx.EmptyBitmap(w, h) But now I am stuck on the following exception and I haven't found a solution to this yet - any pointers would be very welcome. Werner AttributeError: 'BaseApp' object has no attribute 'ProcessIdle' File c:\dev\twcbv4\twcbsrc\controllers\app_stats.py, line 864, in module apprb = Appstats(None, standalone=True) File c:\dev\twcbv4\twcbsrc\controllers\app_stats.py, line 203, in __init__ self.setupControls() File c:\dev\twcbv4\twcbsrc\controllers\app_stats.py, line 236, in setupControls self.createStatsPanes() File c:\dev\twcbv4\twcbsrc\controllers\app_stats.py, line 401, in createStatsPanes self.paneStatsDtypeCons.axes = self.paneStatsDtypeCons.figure.add_subplot(noRow, noCol, 1) File c:\Python27\Lib\site-packages\matplotlib\figure.py, line 882, in add_subplot a = subplot_class_factory(projection_class)(self, *args, **kwargs) File c:\Python27\Lib\site-packages\matplotlib\axes.py, line 8938, in __init__ self._axes_class.__init__(self, fig, self.figbox, **kwargs) File c:\Python27\Lib\site-packages\matplotlib\axes.py, line 461, in __init__ self._init_axis() File c:\Python27\Lib\site-packages\matplotlib\axes.py, line 523, in _init_axis self.spines['right'].register_axis(self.yaxis) File c:\Python27\Lib\site-packages\matplotlib\spines.py, line 151, in register_axis self.axis.cla() File c:\Python27\Lib\site-packages\matplotlib\axis.py, line 732, in cla self.reset_ticks() File c:\Python27\Lib\site-packages\matplotlib\axis.py, line 746, in reset_ticks self.minorTicks.extend([self._get_tick(major=False)]) File c:\Python27\Lib\site-packages\matplotlib\axis.py, line 1839, in _get_tick return YTick(self.axes, 0, '', major=major, **tick_kw) File c:\Python27\Lib\site-packages\matplotlib\axis.py, line 140, in __init__ self.tick2line = self._get_tick2line() File c:\Python27\Lib\site-packages\matplotlib\axis.py, line 541, in _get_tick2line l.set_transform(self.axes.get_yaxis_transform(which='tick2')) File c:\Python27\Lib\site-packages\matplotlib\lines.py, line 476, in set_transform Artist.set_transform(self, t) File c:\Python27\Lib\site-packages\matplotlib\artist.py, line 235, in set_transform self.pchanged() File c:\Python27\Lib\site-packages\matplotlib\artist.py, line 216, in pchanged for oid, func in self._propobservers.iteritems(): -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
On 04/19/2013 01:59 AM, C M wrote: On Thu, Apr 18, 2013 at 11:03 PM, John Ladasky john_lada...@sbcglobal.net mailto:john_lada...@sbcglobal.net wrote: . Reading more, I realize that the way I was getting GUI output previously (with Python 2.7 and Matplotlib 1.1) was through wxPython. Unfortunately, it appears that wxPython's star is fading, and a Python 3-compatible version will not be written. In fact, wxPython hasn't released a new version in nine months. wxPython is alive and well and the newest developmental version of it (Phoenix) runs on Python 3. It should be released fairly soon. One of the wxPython list regulars mentioned getting his software to run with it, with a few minor issues, just six days ago. So you might want to give Phoenix a try. That's great news. Unfortunately, I'm not aware of any testing with it and matplotlib on Python 3, so for someone who just wants to get things to work, I would still recommend Tk, gtk or Qt4 on Python3. Mike -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
On Thu, Apr 18, 2013 at 3:34 AM, John Ladasky john_lada...@sbcglobal.netwrote: Hello everyone, After not using Matplotlib for over a year, I'm returning to it. Meanwhile, I have upgraded from Python 2.7 to Python 3.2, and I want to do all of my software development in Python 3 from now on. My OS is Ubuntu 12.04.1. Python 2.7 is still the default Python for Ubuntu, and many of the Python 3 packages are not offered as official repositories yet. I downloaded Matplotlib 1.2.1, then built it using Python 3. Eventually, I got no build error messages, and proceeded to install. (I always have to pick through dependency problems one error message at a time. I wish there was a better way. The Matplotlib docs could be a little better in this respect.) When I open a Python3 interpreter, I can import matplotlib. But I am not seeing ANYTHING with commands like plt.show(). It executes, and then returns. No output is generated. This very short and simple test program of mine used to produce output with Python 2.7 and Matplotlib 1.1.0. But with Python 3 and Matplolib 1.2.1, I am getting nothing... import numpy as np import matplotlib.pyplot as plt x = np.arange(0, 5, 0.1); y = np.sin(x) plt.plot(x, y) plt.show() It runs. No error messages are generated. But I don't get a graph. I don't even see a graph flicker on to the screen and disappear an instant later. Any advice will be appreciated! You will need to make sure you install the gtk packages (both the libraries and the dev packages) *before* building from source. If it can't find the dev packages, then it won't build the interactive backend for it. I can't remember if there are python3 specific packages for gtk (or any other gui for that matter). -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1
Thanks to both Francesco Montesano and Benjamin Root. I have done some reading. And I have made some progress, though I am not quite where I want to be yet. So the problem appears to be that the only backend for which I had suitable Python 3 libraries was agg. It only requires libpng, which I have. I can render a Matplotlib canvas, but it appears that the only output that agg offers is in the form of PNG files to disk. I cannot create a live window on the screen. Reading more, I realize that the way I was getting GUI output previously (with Python 2.7 and Matplotlib 1.1) was through wxPython. Unfortunately, it appears that wxPython's star is fading, and a Python 3-compatible version will not be written. In fact, wxPython hasn't released a new version in nine months. The other choices for Matplotlib GUI output on Linux appear to be through GTK, PySide, and PyQt. I am not familiar with GTK, but I know that it is widely-used. Also, GTK appears to be Python 3-compatible, and so that is where I need to go. I'm going through a trial and error process. Unfortunately, the names of the repositories in Ubuntu are not very helpful. I installed a few GTK and python-gtk related packages that I thought were relevant. On my first build attempt I got no errors, but also, I didn't get a GTKAgg backend. Upon re-reading, I saw that I should modify matplotlib's setup.cfg file to force a GTK build attempt, and to report errors if it fails. That's what it does. In the optional backend dependencies section I am not seeing any GTK libraries listed, even though I have installed python-gtk2-dev (2.24.0), python-gobject-2-dev (2.28.6), libgtk2.0-dev (2.24.10), libglib2.0-dev (2.32.3), python-gi-dev (3.2.2), python-gobject-dev (3.2.2), python3-gi (3.2.2), and a few DOZEN packages on which these depend. If anyone knows the way forward from here, I would appreciate your advice. Thanks again. -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
