Following are most commonly used techniques − (widget, QtCore.SIGNAL(‘signalname'), slot. In PyQt, connection between a signal and a slot can be achieved in different ways. The slot can be any callable Python function.
The signal on its own does not perform any action. ui files into Python code.See full list on doc.qt.io. pyuic4: A command line application that can convert.Qt Designer: An application for 'drag & drop' design of graphical interfaces (creates.Two useful applications have also been installed along side PyQt4: You have now installed the PyQt4 library. If it is installed correctly, you will see the following error: $ pyuic4Įrror: one input ui-file must be specified If pyqt is installed correctly, you will be able to run the pyuic4 command. You can also download the source code manually from here and then install and configure it yourself. OS X : Run this command in your command line: $ brew install pyqt Linux(Debian): Run this command in your command line: $ apt-get install python-qt4 pyqt4-dev-tools qt4-designer Windows: Download and run the binary setup file. # start the execution loop of the application # create QLabel, without parent it will be shown as window This basic code will launch a "Hello world" GUI window using PyQt4: import sys Now you can run main.py and see your GUI. # Write here what happens after the button press from PyQt4 import QtGuiĬlass MyApp(QtGui.QMainWindow, GUI.Ui_MainWindow):
That's why using another file to add functionality is better in most cases. If you ever want to make changes to your GUI, the GUI.py file will be overwritten. signals and slots) in the GUI.py file but it's better to add them in a new file. If the above line is run successfully a GUI.py file is created. Enter the following into your command line: $ pyuic4 mainwindow.ui -o GUI.py ui file that you generated in the previous step. Open Qt Creator, create a new project and make your design. Make a simple GUI application in 3 easy steps. # add a toolbar with an action button to the main windowĪction = QtGui.QAction('Toolbar action', self)
The following example shows a basic main GUI window with a label widget, a toolbar, and a status bar using PyQt4. The bindings are implemented as a set of Python modules and classes.įor more information see the PyQt website. It runs on all platforms supported by Qt (Windows, OS X, Linux, iOS and Android). PyQt4 supports Qt4 and PyQt5 supports Qt5. PyQt is a Python binding to the popular cross-platform Qt application framework commonly used to make graphical applications.
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