[PyQt] Incompatible Qt libraries in pyqtdeploy installation

[dl]

Running on Ubuntu-14.04 I have progressed from using an earlier version
of Qt (5.2.1)
by uninstalling/purging all Qt4 and Qt 5.2.1 and earlier PyQt .. and
then installing Qt 5.5.1 + PyQt5 + QScintilla2 + eric6 IDE.

Qt 5.5 Creator now works.
eric6 IDE now works.

Now installing pyqtdeploy by command ...

    sudo pip3 install pyqtdeploy
    Downloading/unpacking pyqtdeploy
    Downloading pyqtdeploy-1.2-py3-none-any.whl (328kB): 328kB downloaded
    Installing collected packages: pyqtdeploy
    Successfully installed pyqtdeploy
    Cleaning up...


Next on trying to launch pyqtdeploy through command terminal I get this
message ...

    pyqtdeploy
    Cannot mix incompatible Qt library (version 0x50201) with this
    library (version 0x50501)

PyQt5 is in /opt/qt55.
pyqtdeploy is in /usr/local/lib/python3.4/dist-packages/pyqtdeploy
<file:///usr/local/lib/python3.4/dist-packages/pyqtdeploy>
pyqtdeploy-1.2.dist-info is in
/usr/local/lib/python3.4/dist-packages/pyqtdeploy-1.2.dist-info
<file:///usr/local/lib/python3.4/dist-packages/pyqtdeploy-1.2.dist-info>

Running this script ...

    python3 -c 'from PyQt5 import QtCore; print(QtCore.QT_VERSION_STR)';

returns ...

    5.5.1


How do I resolve these conflicting libraries? 
It seems that version 5.2.1 is still being referenced. But where? In
pyqtdeploy?

dl

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