ImportError: No module named PytQt5

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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
8 Answers

pip install pyqt5 for python3 for ubuntu

this can be solved under MacOS X by installing pyqt with brew

brew install pyqt

On windows, "pip install pyqt5", solved it for me.

You can try to Open the anaconda-prompt with Admininistator user option; conda install pyqt=5

It may caused by different python version, check which version of python you are using, for me the global version was 2.7 and the python version installed in the virtual environment was 3.8, so there was difference, so I run the main.py inside the environment and it works.

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