Python matplotlib installation on centos error [duplicate]

Question

I have issues installing matplotlib on CentOS 7. I have installed everything freetype, libpng-devel. I don't know how to resolve this.

I tried to install yum. It did work, but then while I was importing, I got an error.

Optional backend extensions

                macosx: no  [Mac OS-X only]

                qt5agg: no  [PyQt5 not found]

                qt4agg: no  [PyQt4 not found]

                pyside: no  [PySide not found]

               gtk3agg: no  [Requires gtk3 development files to be

                        installed.]

             gtk3cairo: no  [Requires cairocffi or pycairo to be installed.]

                gtkagg: no  [Requires pygtk]

                 tkagg: no  [TKAgg requires Tkinter.]

                 wxagg: no  [requires wxPython]

                   gtk: no  [Requires pygtk]

                   agg: yes [installing]

                 cairo: no  [cairocffi or pycairo not found]

             windowing: no  [Microsoft Windows only]


OPTIONAL LATEX DEPENDENCIES

                dvipng: no

           ghostscript: no

                 latex: no

               pdftops: no

============================================================================

                        * The following required packages can not be built:

                        * freetype

Padraic Cunningham · Accepted Answer · 2014-12-25 19:25:10Z

2

You probably need to install the freetype devel package:

answered Dec 25, 2014 at 19:25

Padraic Cunningham

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3 Comments

cryp Over a year ago

I uninstalled freetype and then reinstalled it. That seem to have worked !!!

Padraic Cunningham Over a year ago

good, the main problem seemed to be the freetype package normally if you have a package installed and you get an error it is because you need the dev package, did you actually install the devel package?

cryp Over a year ago

aah ok !! yaah I realized that I did not install the freetype dev.

Joe Kington · Accepted Answer · 2014-12-25 19:48:27Z

1

It looks like you're missing any of the gui libraries that the interactive backends use. Matplotlib is installing correctly, but isn't able to find Tkinter, Qt, Wx, or Gtk, so it can't display interactive plots.

Try installing tkinter, tkinter-devl and python-tk if they're not already installed (or if you'd prefer Qt, Wx, or Gtk as the interactive backend, install those).

answered Dec 25, 2014 at 19:48

Joe Kington

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