PySide Import Error on Ubuntu 13.04

Question

while trying just to import

from PySide import QtGui

I'm getting the following error:

ImportError: libpyside-python2.7.so.1.2: cannot open shared object file: No such file or directory

ls /usr/local/lib/python2.7/dist-packages/PySide/libpyside-python2.7.so.1.2

/usr/local/lib/python2.7/dist-packages/PySide/libpyside-python2.7.so.1.2

So the so file is in place, why PySide cannot find it? I've tried to install PySide via pip but got some kind of post-processing script error and installed package through synaptic.

Additional information:

ldd /usr/local/lib/python2.7/dist-packages/PySide/libpyside-python2.7.so.1.2
        linux-vdso.so.1 =>  (0x00007ffffd34e000)
        libpython2.7.so.1.0 => /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 (0x00007fdd5a6ae000)
        libshiboken-python2.7.so.1.2 => not found
        libQtCore.so.4 => /usr/lib/x86_64-linux-gnu/libQtCore.so.4 (0x00007fdd5a1d6000)
        libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fdd59ed3000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fdd59cbd000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fdd598f4000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fdd596dd000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fdd594c0000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fdd592bb000)
        libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007fdd590b8000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fdd58db3000)
        libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007fdd58ab6000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fdd588ae000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fdd5ae32000)
        libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fdd5866e000)

Answer 1

The output of ldd suggests that libshiboken-python2.7.so.1.2 can't be found.

/usr/local/lib/python2.7/dist-packages/PySide, where it is found, is not typically a directory where the dynamic linker would look for it.

There are several options in this case:

• add the directory to the directories checked by the dynamic linker.

  To do so, you can create a configuration file, e.g. /etc/ld.so.conf.d/pyside.conf with the content:

  /usr/local/lib/python2.7/dist-packages/PySide
  

  then as root run ldconfig

• copy or symlink the library to a directory that is already checked by the dynamic linker, like /usr/local/lib (and run ldconfig as root)

• set LD_LIBRARY_PATH=/usr/local/lib/python2.7/dist-packages/PySide (not reccomended)

Answer 2

If you have used pyside-setup to build from source, just run

sudo python pyside_postinstall.py -install