Reputation: 2450

How to install PyQt5 in Python 3 (Ubuntu 14.04)

I need to port some code that's Python2+PyQt4 to Python3+PyQt5.

I started installing pip3

sudo apt-get install python3-pip

Works great. Tried

sudo pip3 install PyQt5
Downloading/unpacking PyQt5
  Could not find any downloads that satisfy the requirement PyQt5
Cleaning up...
No distributions at all found for PyQt5

Online I find the following steps:

http://pyqt.sourceforge.net/Docs/PyQt5/installation.html

But they are too many. What's the easiest way to Install PyQt5 along with Python3 in Ubuntu 14.04 ?

Upvotes: 31

Answers (4)

Ujjwal

Reputation: 361

Well I documented the steps for Installing pyqt5 with qt designer and code generation here: https://gist.github.com/1dcd57542bdaf3c9d1b0dd526ccd44ff

Installation

pip3 install --user pyqt5  
sudo apt-get install python3-pyqt5  
sudo apt-get install pyqt5-dev-tools
sudo apt-get install qttools5-dev-tools

Configuring to run from terminal

$ qtchooser -run-tool=designer -qt=5

Write the following in /usr/lib/x86_64-linux-gnu/qt-default/qtchooser/default.conf

/usr/lib/x86_64-linux-gnu/qt5/bin
/usr/lib/x86_64-linux-gnu

Code Generation

Create uic.py file.

#!/usr/bin/python3

import subprocess
import sys

child = subprocess.Popen(['pyuic5' ,'-x',sys.argv[1]],stdout=subprocess.PIPE)

print(str(child.communicate()[0],encoding='utf-8'))

$ chmod +x uic.py

Create a symlink:

$ sudo ln uic.py "/usr/lib/x86_64-linux-gnu/qt5/bin/uic"

Desktop Entry

[Desktop Entry]
Name=Qt5 Designer
Icon=designer
Exec=/usr/lib/x86_64-linux-gnu/qt5/bin/designer
Type=Application
Categories=Application
Terminal=false
StartupNotify=true
Actions=NewWindow

Name[en_US]=Qt5 Designer

[Desktop Action NewWindow]
Name=Open a New Window
Exec=/usr/lib/x86_64-linux-gnu/qt5/bin/designer

save in ~/.local/share/application with .desktop extension

Upvotes: 26

Gabriel Staples

Reputation: 53215

How to install PyQt5 in Python3

Tested on Ubuntu 18.04.

Just installing it did not work for me. I had to uninstall it first, then reinstall it:

# upgrade pip
python3 -m pip install --upgrade pip

# uninstall
python3 -m pip uninstall PyQt5
python3 -m pip uninstall PyQt5-sip
python3 -m pip uninstall PyQtWebEngine

# reinstall
python3 -m pip install PyQt5
python3 -m pip install PyQt5-sip
python3 -m pip install PyQtWebEngine

See here for my full answer, including how to install it for a specific version of Python3, such as Python3.8: How to install PyQt5 in Python3

Upvotes: 0