Re: [Matplotlib-users] Trying to migrate to Python 3.2, Matplotlib 1.2.1

[Francesco M. <fra...@gm...>]

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 <sm...@fu...>

> 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.
> >
> >
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