#NEWLINE# def _open_changed( self ) : #NEWLINE# #INDENT# " Handles the user clicking the 'Open...' button.\n        " #NEWLINE# file_name = open_file ( extensions = TextInfo ( ) , filter = 'Python file (*.py)|*.py' , id = demo_id ) #NEWLINE# if ( file_name != '' ) : #NEWLINE# #INDENT# self . file_name = file_name