python - ImportError: No module named PytQt5

Question

following are my python, qt and sip versions

root@thura:~# python -V
Python 2.7.3
root@thura:~# qmake --version
QMake version 3.0
Using Qt version 5.0.2 in /usr/lib/i386-linux-gnu
root@thura:~# sip -V
4.15.3

I tried to import the PyQt5 by following by this

from PyQt5.QtWidgets import QtGui, QtCore

I got the following error

ImportError: No module named PyQt5.QtWidgets

How can I solve this error.

Updated =====================

When I tried to PyQt4, I got following error.

from PyQt4.QtCore import pyqtSlot as Slot RuntimeError: the sip module implements API v10.0 to v10.1 but the PyQt4.QtCore module requires API v8.1

Updated 2013-12-20 ======================================

1) download sip-4.15.3.tar.gz from here

2) extract sip-4.15.3.tar.gz

3) copy sip-4.15.3 to /home/thura

4) type "cd /home/thura/sip-4.15.3"

5) type "python configure.py", press enter, follow the instructions (type yes and press enter)

6) type "make", press enter and type "make install", press enter

7) download PyQt-gpl-5.1.1.tar.gz from here

8) extract PyQt-gpl-5.1.1.tar.gz

9) copy PyQt-gpl-5.1.1 folder to /home/thura folder.

10) type "cd /home/thura/PyQt-gpl-5.1.1"

11) type "python configure.py", press enter, following the instructions (type yes and press enter)

12)type "make", press enter and type "make install", press enter

update 2013-12-20 =====================

After redo it again. I got the following error

make[2]: Entering directory `/home/thura/PyQt/qpy/QtDBus'
make[2]: Nothing to be done for `install'.
make[2]: Leaving directory `/home/thura/PyQt/qpy/QtDBus'
make[1]: Leaving directory `/home/thura/PyQt/qpy'
cd QtCore/ && ( test -e Makefile || /usr/lib/i386-linux-gnu/qt5/bin/qmake /home/thura/PyQt/QtCore/QtCore.pro -o Makefile ) && make -f Makefile install
make[1]: Entering directory `/home/thura/PyQt/QtCore'
g++ -c -pipe -O2 -Wall -W -D_REENTRANT -fPIC -DSIP_PROTECTED_IS_PUBLIC -Dprotected=public -DQT_NO_DEBUG -DQT_PLUGIN -DQT_CORE_LIB -I/usr/share/qt5/mkspecs/linux-g++ -I. -I/usr/local/include/python2.7 -I../qpy/QtCore -I/usr/include/qt5 -I/usr/include/qt5/QtCore -I. -o sipQtCoreQtWindowStates.o sipQtCoreQtWindowStates.cpp
In file included from sipQtCoreQtWindowStates.cpp:24:0:
sipAPIQtCore.h:28:17: fatal error: sip.h: No such file or directory
compilation terminated.
make[1]: *** [sipQtCoreQtWindowStates.o] Error 1
make[1]: Leaving directory `/home/thura/PyQt/QtCore'
make: *** [sub-QtCore-install_subtargets-ordered] Error 2

Answer 1

If you are on ubuntu, just install pyqt5 with apt-get command:

    sudo apt-get install python3-pyqt5   # for python3

or

    sudo apt-get install python-pyqt5    # for python2

However, on Ubuntu 14.04 the python-pyqt5 package is left out [source] and need to be installed manually [source]