Tax = (income - numDependents * exemptionAmount) *. Them to compute the tax, which is sent to the """Obtains the data from the input fields and uses # The event handler method for the button Python - Tkinter Frame, This Python tutorial is for beginners which covers all the concepts related to Python Programming including What is Python, Python Environment Setup, Object Oriented Python, Lists, Tuples, Dictionary, Date and Times, Functions, Modules, Loops, Decision Making Statements, Regular Expressions, Files, I/O, Exceptions, Classes, Objects, Networking and GUI Programming. Self.taxField = self.addFloatField(value = 0.0, Self.addButton(text = "Compute", row = 3, column = 0,Ĭolumnspan = 2, command = puteTax) Self.exeField = self.addFloatField(value = 0.0, # Label and field for the exemption amount # Label and field for the number of dependents Self.incomeField = self.addFloatField(value = 0.0, """Sets up the window and the widgets."""ĮasyFrame._init_(self, title = "Tax Calculator") """Application window for the tax calculator.""" The GUI-based tax calculator program shows clearly where these two tasks are performed. The other two tasks, laying out the window and responding to user events, are a matter of defining several methods belonging to a window class. The good news is that the runtime system handles the second and third of the four tasks – waiting for and detecting user events – mentioned above.
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