Python In Practice - 15 Projects to Master Python - File Dialog Boxes for Application

The video tutorial explains how to integrate file dialog functionality into an application. It covers importing necessary dependencies, setting up file dialogs, defining parameters like initial directory and file types, and running the program to test the dialog. The tutorial also demonstrates creating a button to trigger the file dialog and finalizing the application by destroying the button after use.

What is the primary purpose of using a file dialog box in an image viewer application?

• To edit image files

• To open and select image files

• To delete image files

• To create new image files

Which library is used to import the file dialog in the application?

• PyQt

• Kivy

• Decanter

• Tkinter

What does the 'askopenfilename' function do in the context of a file dialog?

• It prompts the user to select a file

• It opens the file directly

• It deletes the file

• It saves the file

How can you specify which types of files to display in the file dialog?

• By using the 'filetypes' parameter

• By using the 'formats' parameter

• By using the 'types' parameter

• By using the 'extensions' parameter

What is the role of the 'initialdir' parameter in a file dialog?

• To set the file size

• To set the file type

• To set the initial directory path

• To set the default file name

What happens when you select a file in the file dialog and click 'Open'?

• The file is copied to a new location

• The file path is stored for further use

• The file is displayed in the application

• The file is deleted

How is the selected image displayed in the application window?

• By using the 'show' method

• By using the 'display' method

• By using the 'label' widget

• By using the 'canvas' widget

What is the purpose of adding a button in the application?

• To save the image

• To trigger the file dialog

• To close the application

• To edit the image

What does the 'destroy' method do to the button after an image is selected?

• It hides the button temporarily

• It deletes the button permanently

• It changes the button's color

• It disables the button

Why is the 'global' keyword used in the context of the image variable?

• To make the variable accessible only within the function

• To make the variable accessible throughout the application

• To delete the variable

• To rename the variable