title: ubuntu eric no module PyQt5.Qsci
body: <p>Just installed Ubuntu 16.04 LTS yesterday, installed Eric. Worked fine. Wanted to start Eric and use qtdesigner today, didn't work (got error qtdesigner not found) since you have to manually install it according to guides. Went through that now this error: </p>
  
  <pre><code>Error in sys.excepthook:
  Traceback (most recent call last):
  File "&lt;frozen importlib._bootstrap&gt;", line 969, in _find_and_load
  File "&lt;frozen importlib._bootstrap&gt;", line 958, in _find_and_load_unlocked
  File "&lt;frozen importlib._bootstrap&gt;", line 673, in _load_unlocked
  File "&lt;frozen importlib._bootstrap_external&gt;", line 665, in exec_module
  File "&lt;frozen importlib._bootstrap&gt;", line 222, in _call_with_frames_removed
  File "/usr/share/eric/modules/Utilities/__init__.py", line 61, in &lt;module&gt;
  from PyQt5.Qsci import QSCINTILLA_VERSION_STR, QsciScintilla
  ImportError: No module named 'PyQt5.Qsci'
  
  Original exception was:
  Traceback (most recent call last):
  File "/usr/share/eric/modules/eric6.py", line 326, in &lt;module&gt;
  main()
  File "/usr/share/eric/modules/eric6.py", line 240, in main
  import Preferences
  File "/usr/share/eric/modules/Preferences/__init__.py", line 36, in  &lt;module&gt;
  from PyQt5.QtWebKit import QWebSettings
  ImportError: No module named 'PyQt5.QtWebKit'
  </code></pre>
  
  <p>I already manually installed qscintilla, qt, pyqt, qtdesigner. What I have found is that under python3 there are distpackages containing pyqt4 and 5 (the ones missing according to the error) and I can import them when running python3 in the terminal. If I am running Python 2 that import isn't possible.
  I am assuming that eric uses Python2 to start and thus does not find these packages?</p>
  
  <p>I am very new to Linux and do not know if I am on the right track. I tried the solutions offered on the web, but the error just keeps coming up. Any suggestions? </p>