Ubuntu 14.10 – How to Install PyQt for Python 3

pyqtpython3qt

I found some tutorials online for earlier versions of Ubuntu but they didn't seem to work on Ubuntu 14.10; either that or I was doing it the wrong way.

I want to use Qt Designer to design a GUI, use PyQt to covert it to .py, then use it in Python.

What packages do I need to install to do this?

Best Answer

All the tools you need are included in Ubuntu repositories. You must install the package qtcreator, which has an integrated QtDesigner, and the package pyqt5-dev-tools, which provides pyuic5, a utility that generates Python code from .ui files.

sudo apt-get install qtcreator pyqt5-dev-tools

Related Solutions

Ubuntu – Removed Python 3 and now Ubuntu Software Center, terminal and other applications don’t work

Open a text-only virtual console by pressing the keyboard shortcut Ctrl + Alt + F3.
At the login: prompt type your username and press Enter.
At the Password: prompt type your user password and press Enter.
Reinstall the default Python 3 version by running the following command:
```
sudo apt-get install python3-all
```
Switch out of the virtual console and return to your desktop environment by pressing the keyboard shortcut Ctrl+Alt+F7. In Ubuntu 17.10 and later press the keyboard shortcut Ctrl+Alt+F2 to exit from the virtual console.

After you have installed the default Python 3 version, you need to get back your default Ubuntu desktop system. In order to avoid messing something up, do it in the following order:

First install the terminal from the console using the command: sudo apt-get install gnome-terminal. If you can't install gnome-terminal at all, skip this step and go to step 2.
Return to your desktop and open the terminal using the keyboard shortcut Ctrl + Alt + T. From the terminal install the Ubuntu Software Center using the command:
```
sudo apt-get install software-center
```
In Ubuntu 16.04 and later run this command instead to reinstall the default Software application:
```
sudo apt-get install gnome-software
```
If you still can't open the terminal, run the same command from the console instead. If you can't install the default software application at all, skip this step and go to step 3.
Open the terminal and try to open the Ubuntu Software Center from the terminal by running the appropriate command, either software-center or gnome-software. From the Ubuntu Software Center install the Ubuntu desktop system or else open the terminal (or the console) and install the Ubuntu desktop system by running the command: sudo apt-get install ubuntu-desktop.

Ubuntu – How tonstall Python 3.X.X. Properly

These steps will create a Python 3.3 virtualenv in a /opt subdirectory:

Install Pip and virtualenv on your system Python installation.

sudo apt-get install python-pip
sudo -H pip install virtualenv

Run this command (see notes below):
```
sudo -H virtualenv /opt/python_custom -p python3
```
- Replace /opt/python_custom with the path you would like to install to.
- Replace python3 with the interpreter which will be used, e.g.: python2, python3.3 or others.
If you want to operate on this Python installation, you will need to run this command first:
```
source /opt/<PYTHON>/bin/activate
```
(replace <PYTHON> with the path from above)

Your shell prompt will change to reflect the current virtualenv.
You can then use sudo pip to install whichever packages you would like, e.g.:
```
sudo pip install setuptools
sudo pip install distribute
```

Note: To use this Python in your scripts, specify the #! line to be the virtualenv interpreter, e.g.:

#!/opt/python_custom/bin/python

Note: You'll need to use sudo when changing the virtualenv (e.g.: by installing a package with pip) because it is installed into /opt, which is owned by root.

Best Answer

Related Solutions

Ubuntu – Removed Python 3 and now Ubuntu Software Center, terminal and other applications don’t work

Ubuntu – How tonstall Python 3.X.X. Properly

Related Question