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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Creator documentation.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Free Documentation License Usage
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of
** this file. Please review the following information to ensure
** the GNU Free Documentation License version 1.3 requirements
** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
**
****************************************************************************/
/*!
//! [python project wizards]
\section2 Creating Qt for Python Applications
\l {https://doc.qt.io/qtforpython/index.html}{Qt for Python} enables you
to use Qt 5 API in Python applications. You can use the PySide2 module to
gain access to individual Qt modules, such as \l {Qt Core}, \l {Qt GUI},
and \l {Qt Widgets}.
The Qt for Python Application wizards generate a \c {.pyproject} file that
lists the files in the Python project and a \c {.py} file that contains
some boilerplate code.
The \c{.pyproject} files are JSON-based configuration files that replace
the previously used \c {.pyqtc} configuration files. You can still open and
use \c {.pyqtc} files, but we recommend that you choose \c{.pyproject} files
for new projects.
The \uicontrol {Qt for Python - Window} wizard enables you to create a
Python source file for a new class that you can add to a Python project.
Specify the class name, base class, and and source file for the class.
\image qtcreator-python-wizard-app-window.png
The Window wizard adds the imports to the source file to provide
access to the QApplication and the base class you selected in the Qt
Widgets module:
\badcode
import sys
from PySide2.QtWidgets import QApplication, QWidget
\endcode
The Window wizard also adds a main class with the specified name that
inherits from the specified base class:
\badcode
class MyWidget(QWidget):
def __init__(self):
QWidget.__init__(self)
\endcode
Next, the Window wizard adds a main function, where it creates a
QApplication instance. As Qt can receive arguments from the command line,
you can pass any arguments to the QApplication object. Usually, you do not
need to pass any arguments, and you can use the following approach:
\badcode
if __name__ == "__main__":
app = QApplication([])
\endcode
Next, the Window wizard instantiates the \c MainWindow class and shows it:
\badcode
window = MyWidget()
window.show()
...
\endcode
Finally, the Window wizard calls the \c app.exec_() method to enter the Qt
main loop and start executing the Qt code:
\badcode
sys.exit(app.exec_())
\endcode
The Empty wizard adds similar code to the source file, but it does
not add any classes, so you need to add and instantiate them yourself.
For examples of creating Qt for Python applications, see
\l {https://doc.qt.io/qtforpython/tutorials/index.html}
{Qt for Python Examples and Tutorials}.
//! [python project wizards]
*/
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