Introduction to PyQt5 and its modules with widgets and classes .

Introduction to PyQt5 : Python

PyQt is a GUI widgets toolkit. It is a Python interface for Qt, one of the most powerful, and

popular cross-platform GUI library. PyQt was developed by RiverBank Computing Ltd. 

in simple words PyQt is a python external module which is used for creating modern GUI applications .

It is available with python 2.x and 3.x versions .

PyQT5 is implimented as a set of python  modules . It has over 620 classes and 6000 functions and methods .

Supporting Environments :

PyQt is compatible with all the popular operating systems . It is a multiplatform toolkit which runs on all major operating system , including Unix , windows and Mac Os.

Installation :

For windows : pip install pyqt5 

PyQt API is a large collection of classes and methods. These classes are defined in more than 20 modules. Following are some of the frequently used modules:

QtCore	Core non-GUI classes used by other modules
QtGui	Graphical user interface components
QtMultimedia	Classes for low-level multimedia programming
QtNetwork	Classes for network programming
QtOpenGL	OpenGL support classes
QtSql	for database integration using SQL
QtWebKit	Classes for rendering and editing HTML
QtXml	Classes for handling XML
QtAssistant	Support for online help

Here is a select list of frequently used widgets:

QLabel	Used to display text or image
QLineEdit	Allows the user to enter one line of text
QTextEdit	Allows the user to enter multi-line text
QPushButton	A command button to invoke action
QRadioButton	Enables to choose one from multiple options
QCheckBox	Enables choice of more than one options
QSpinBox	Enables to increase/decrease an integer value
QScrollBar	Enables to access contents of a widget beyond display aperture
QSlider	Enables to change the bound value linearly.
QComboBox	Provides a dropdown list of items to select from
QMenuBar	Horizontal bar holding QMenu objects
QStatusBar	Usually at bottom of QMainWindow, provides status information
QToolBar	Usually at top of QMainWindow or floating. Contains action buttons
QListView	Provides a selectable list of items in ListMode or IconMode

 

                    

Structure of a pyqt application .

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This blog is contributed by Yogesh singh .

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