{"id":5211,"date":"2022-10-13T04:45:39","date_gmt":"2022-10-13T04:45:39","guid":{"rendered":"https:\/\/www.pythontutorial.net\/?page_id=5211"},"modified":"2022-10-29T08:08:14","modified_gmt":"2022-10-29T08:08:14","slug":"pyqt-qfiledialog","status":"publish","type":"page","link":"https:\/\/www.pythontutorial.net\/pyqt\/pyqt-qfiledialog\/","title":{"rendered":"PyQt QFileDialog"},"content":{"rendered":"\n

Summary<\/strong>: in this tutorial, you’ll learn how to use the PyQt QFileDialog<\/code> class to create file dialogs that allow users to select files or directories from the file system.<\/p>\n\n\n\n

Introduction to the PyQt QFileDialog #<\/a><\/h2>\n\n\n\n

The QFileDialog<\/code> class creates a file dialog widget that allows users to traverse the file system and select one or more files or a directory.<\/p>\n\n\n\n

To create a file dialog object, you create a new instance of the QFileDialog<\/code>:<\/p>\n\n\n

dialog = QFileDialog(self)<\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
The QFileDialog<\/code> object has the setFileMode()<\/code> method that allows users to select an existing file:<\/p>\n\n\n
dialog.setFileMode(QFileDialog.FileMode.ExistingFiles)<\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
or a file that does not exist: <\/p>\n\n\n
dialog.setFileMode(QFileDialog.FileMode.AnyFile)<\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
This option is useful for the Save As file dialog scenario.  See the QFileDialog<\/code>.FileMode enum for the complete file modes.<\/p>\n\n\n\n
Filtering file types #<\/a><\/h3>\n\n\n\n
To specify which types of files users are expected to select, you can use the setNameFilter()<\/code> method. For example, the following filter expects users to select only PNG<\/code> and JPEG<\/code> files:<\/p>\n\n\n
dialog.setNameFilter(\"Images (*.png *.jpg)\"<\/span>)<\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
To use multiple filters, you need to separate each with two<\/strong> semicolons. For example:<\/p>\n\n\n
\"Images (*.png  *.jpg);;Vector (*.svg)\"<\/span><\/code><\/span>Code language:<\/span> Python<\/span> (<\/span>python<\/span>)<\/span><\/small><\/pre>\n\n\n
Setting views for file dialogs #<\/a><\/h3>\n\n\n\n
The file dialog has two view modes: list and detail.<\/p>\n\n\n\n