Как установить Eric 6 на Ubuntu 16.04?

Я знаю, что это походит на глупый вопрос с курса, обычно можно было бы работать:

sudo apt-get install eric

поскольку Eric 6 находится в официальных репозиториях Ubuntu, но это возвратило ошибку:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies.
 eric : Depends: python3-pyqt5.qsci but it is not going to be installed
        Depends: python3-pyqt5.qtsql but it is not going to be installed
        Depends: python3-pyqt5.qtwebkit but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

пробуя рекурсивный механизм для фиксации этой дилеммы зависимости я работал:

sudo apt-get install eric python3-pyqt5.qsci python3-pyqt5.qtsql python3-pyqt5.qtwebkit python3-pyqt5

но это возвратило ошибку:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-pyqt5 is already the newest version (5.5.1+dfsg-3+16.04+build3).
python3-pyqt5 set to manually installed.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies.
 python3-pyqt5.qsci : Depends: libqt5scintilla2-12v5 (>= 2.9) but it is not going to be installed
 python3-pyqt5.qtsql : Depends: python3-pyqt5 (= 5.5.1+dfsg-3ubuntu4) but 5.5.1+dfsg-3+16.04+build3 is to be installed
 python3-pyqt5.qtwebkit : Depends: python3-pyqt5 (= 5.5.1+dfsg-3ubuntu4) but 5.5.1+dfsg-3+16.04+build3 is to be installed
E: Unable to correct problems, you have held broken packages.