QT4 File Dialog
In this short tutorial you will learn how to create a file dialog and load its file contents. The file dialog is needed in many applications that use file access.
Related course:
Practice Python with interactive exercises
File Dialog Example To get a filename (not file data) in PyQT you can use the line:
filename = QFileDialog.getOpenFileName(w, 'Open File', '/')If you are on Microsoft Windows use
filename = QFileDialog.getOpenFileName(w, 'Open File', 'C:\')An example below (includes loading file data):
#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
import sys
from PyQt4.QtGui import *
# Create an PyQT4 application object.
a = QApplication(sys.argv)
# The QWidget widget is the base class of all user interface objects in PyQt4.
w = QWidget()
# Set window size.
w.resize(320, 240)
# Set window title
w.setWindowTitle("Hello World!")
# Get filename using QFileDialog
filename = QFileDialog.getOpenFileName(w, 'Open File', '/')
print(filename)
# print file contents
with open(filename, 'r') as f:
print(f.read())
# Show window
w.show()
sys.exit(a.exec_())
PyQt File Open Dialog.