What is qt designer linux

Install Qt Designer Standalone
Qt Designer Download for Windows, Mac and Linux

Qt Designer is a cross-platform drag and drop GUI designer, which can be used to build UIs for both PyQt and PySide. It is a great tool to simplify the process of building interfaces for your applications.

While Qt Designer is distributed by Qt as part of the Qt Creator integrated IDE, most of that IDE is not useful or helpful for Python development — primarily being designed for C++ developers. If you just want the Designer application, this is not currently available from Qt. But helpfully, other people have stepped up to make this available.

In this guide we’ll look at the various options available for installing Qt Designer as a standalone application on your system.

Since the Qt Designer software is free software, these alternative distributions of Qt Designer are permitted.

PyQt Command line launcher

Qt Designer is available on PyPi via the pyqt5-tools package. This can be pip installed just like any other Python package. This wrapper will download and install Qt Designer for you and provide a command-line launcher to start the program.

After installation you can run Qt Designer from the command line using the built-in launcher.

If this doesn’t work check your Python scripts folder is in your PATH .

PySide6 Command line launcher

In recent versions of PySide6 Qt Designer is installed automatically when you install PySide6 with pip . After installation you can run Qt Designer from the command line using the built-in launcher.

If this doesn’t work check your Python scripts folder is in your PATH .

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Installing from Qt Package

If the above installation options don’t work for you, you can instead follow the following instructions to install Qt Creator or Qt Designer depending on your platform.

If you install Qt Creator you can access Qt Designer through it, even if you don’t use any of the other functionality.

Windows

Qt Designer is available in the installation packages for Qt available from the Qt downloads page. Download and run the appropriate installer for your system and follow the platform-specific instructions below. Installing Qt Designer will not affect your Python PyQt5/6 or PySide2/6 installation.

Qt Designer is not mentioned in the Windows Qt installer, but is automatically installed when you install any version of the Qt core libraries. For example, in the following screenshot we’ve opted to install the MSVC 2017 64-bit version of Qt — what you choose will have no effect on your Designer install.

Installing Qt, will also install Qt Designer.

If you want to install Qt Creator it is listed under «Developer and Designer Tools». Rather confusingly, Qt Designer isn’t in here.

Installing the Qt Creator component.

macOS

Qt Designer is available in the installation packages for Qt available from the Qt downloads page. Download and run the appropriate installer for your system and follow the platform-specific instructions below. Installing Qt Designer will not affect your Python PyQt5/6 or PySide2/6 installation.

Qt Designer is not mentioned in the macOS Qt installer, but is automatically installed when you install any version of the Qt core libraries. Download the installer from the Qt website — you can opt for the open source version.

Inside the downloaded .dmg file you’ll find the installer.

Open the installer to start the installation. Go through to where it asks you to choose which components to install. Select the macOS package under the latest version of Qt.

You only need the macOS package under the latest version.

Once the installation is complete, open the folder where you installed Qt. The launcher for Designer is under /clang_64/bin . You’ll notice that Qt Creator is also installed in the root of the Qt installation folder.

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Install Qt Designer Standalone was written by Martin Fitzpatrick .

Martin Fitzpatrick has been developing Python/Qt apps for 8 years. Building desktop applications to make data-analysis tools more user-friendly, Python was the obvious choice. Starting with Tk, later moving to wxWidgets and finally adopting PyQt.

Install Qt Designer Standalone was published in installation on May 21, 2022 (updated April 08, 2023 )

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qt designer python

Qt Designer helps you build a GUI (graphical user interface). You can load a GUI from Python. In this tutorial we’ll show you step by step.

It covers a very basic example of how to use Qt Designer with PyQt and Python. For more details see the link below.

Qt Designer Python

Prerequisites

To start with this tutorial you need these installed:

You will need Python 3 or above, because the others are out dated.

If you don’t have PyQt, install PyQt.

sudo apt-get install qttools5-dev-tools
sudo apt-get install qttools5-dev

On other platforms it’s included in the setup.

How to start Designer

Start designer by typing designer in the command line. Important: qt creator is another program.

cd /usr/lib/x86_64-linux-gnu/qt5/bin/
./designer

Basics

A popup shows up. You can choose what you want to design.

Choose “Main Window” and click create.

You can then resize the form and drag and drop widgets. It’s pretty simple to design a graphical interface like this.

If you click on a widget (say a button), you can set its properties like name.

Export Design to UI

You can export your design to a UI file. Click File > Save As > yourname.ui

Then you can convert the ui code to a python file.
Like this:

pyuic5 /home/linux/helloworld.ui -o helloworld.py

The Python file then contains the gui definition.
Create another file that loads the ui file:

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from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QApplication
import sys
import helloworld

class ExampleApp(QtWidgets.QMainWindow, helloworld.Ui_MainWindow):
def __init__(self, parent=None):
super(ExampleApp, self).__init__(parent)
self.setupUi(self)

def main():
app = QApplication(sys.argv)
form = ExampleApp()
form.show()
app.exec_()

if __name__ == ‘__main__’:
main()

Once you run it your GUI appears.

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[Linux ] Use Qt Designer to develop Python GUI program in Ubuntu 18.04

If you want to develop a Python GUI program, choose PyQt5 is a great choice. In the past, I recorded about how to configure the Qt Designer in PyCharm on Windows. ([PyQt5] Tutorial(1) Install PyQt5 and print «Hello World!»)

If you want to know more about PyQt5, you can refer to here: https://pypi.org/project/PyQt5/

The installation method in Linux system is actually simpler, the following is a simple record.

Installation of Qt Designer

Before we start, we need to install the following packages:

sudo apt-get install qt5-default sudo apt-get install qttools5-dev-tools sudo pip3 install pyqt5

After installing, use the following command to open Qt Designer:

Let’s place a QLabel component in the window, and use ctrl+s to save it, named it UI.ui .

Of course we are not use Python to execute it, we need to convert it from xml format to Python code:

pyuic5 can convert UI files to .py files so that we can read them normally.

from PyQt5 import QtWidgets from UI import Ui_MainWindow import sys class MainWindow(QtWidgets.QMainWindow): def __init__(self): super(MainWindow, self).__init__() self.ui = Ui_MainWindow() self.ui.setupUi(self) self.ui.label.setText('Hello World!') if __name__ == '__main__': app = QtWidgets.QApplication([]) window = MainWindow() window.show() sys.exit(app.exec_()) 

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