Basic_Page_with_Button.py

#BPG is a class of tkinter 
from breezypythongui import EasyFrame

class ButtonDemo(EasyFrame):
    """Illustrates command buttons and user events."""

    def __init__(self):
        """Sets up the window, label, and buttons."""
        EasyFrame.__init__(self)

        # A single label in the first row.
        self.label = self.addLabel(text = "Hello world!",
                                   row = 0, column = 0,
                                   columnspan = 2, sticky = "NSEW")

        # Two command buttons in the second row.
        self.clearBtn = self.addButton(text = "Clear",
                                       row = 1, column = 0,
                                       command = self.clear)
        self.restoreBtn = self.addButton(text = "Restore",
                                         row = 1, column = 1,
                                         command = self.restore,
                                         state = "disabled")

    # Methods to handle user events.
    def clear(self):
        """Resets the label to the empty string and the button states."""
        self.label["text"] = ""
        self.clearBtn["state"] = "disabled"
        self.restoreBtn["state"] = "normal"

    def restore(self):
        """Resets the label to 'Hello world!'and sets the state of the buttons."""
        self.label["text"] = "Hello world!"
        self.clearBtn["state"] = "normal"
        self.restoreBtn["state"] = "disabled"

# Instantiates and pops up the window.
if __name__ == "__main__":
    ButtonDemo().mainloop()