On Mon, Sep 2, 2013 at 12:27 AM, Filipe Saraiva <m...@filipesaraiva.info>wrote:
> Hello,
>
> First, thanks for this great library.
>
> My name is Filipe Saraiva, I am developing a python backend for Cantor,
> the KDE mathematical software. More infos can be read in
> http://blog.filipesaraiva.info/?tag=gsoc2013-python-backend (in
> portuguese and english).
>
> Currently I have a problem when I try import pyplot in Cantor. I am using
> Python 2.7.5 and matplotlib 1.3.0. The error is below:
>
> import matplotlib.pyplot as plt
> Traceback (most recent call last):
> File "<string>", line 1, in <module>
> File "/usr/lib64/python2.7/site-packages/matplotlib/pyplot.py", line 98,
> in <module>
> _backend_mod, new_figure_manager, draw_if_interactive, _show =
> pylab_setup()
> File
> "/usr/lib64/python2.7/site-packages/matplotlib/backends/__init__.py", line
> 25, in pylab_setup
> globals(),locals(),[backend_name])
> File
> "/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_qt4agg.py",
> line 19, in <module>
> _decref = ctypes.pythonapi.Py_DecRef
> File "/usr/lib64/python2.7/ctypes/__init__.py", line 378, in __getattr__
> func = self.__getitem__(name)
> File "/usr/lib64/python2.7/ctypes/__init__.py", line 383, in __getitem__
> func = self._FuncPtr((name_or_ordinal, self))
> AttributeError: kde/bin/cantor: undefined symbol: Py_DecRef
>
> Well, anyone have any idea about how can I fix it?
>
> Thank you,
>
>
My only guess is that there is some sort of linking/build error. Perhaps
the python-qt4 library was built and linked against a different python on
your system?
Cheers!
Ben Root
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