Modify Your Mail Delivery Service Python Application ✓ Solved

Modify Your Mail Delivery Service Python Application From The Previ

Modify your Mail Delivery Service Python application from the previous assignment and add an event handler to the “Process” button to display a pop-up box containing the information. Modify your Mail Delivery Service Application so that the program displays the fee for the delivery service based on the table shown below.

Distance Weight Fee ($) Local Under 5 pounds 5.75 Local 5 to 20 pounds 10.75 Local Over 20 pounds 20.75 Long Distance Under 5 pounds 35.75 Long Distance 5 pounds or more 47.75. If the insurance is checked, add $4.00 to the fee.

Paper For Above Instructions

The modification of the Mail Delivery Service application requires both visual updates and functional enhancements to better serve users. This document outlines how to accomplish these modifications, specifically through the incorporation of a pop-up information display after the user clicks the “Process” button and the implementation of a delivery fee structure based on distance and weight categories.

Introduction

The Mail Delivery Service application is designed to manage sending parcels effectively. By introducing a user-friendly interface that provides immediate feedback and accurate fee calculation based on user inputs, the application can enhance the user experience significantly. This paper provides a comprehensive guide to modifying the application to meet these goals.

Enhancing User Interaction with a Pop-Up Box

One of the key features to add is an event handler that triggers a pop-up box displaying user-inputted information when the “Process” button is clicked. To achieve this, we can utilize Tkinter, a standard GUI toolkit for Python. Below is an example of how to implement this feature:

import tkinter as tk

from tkinter import messagebox


def process_information():


Gather input data (assuming entry fields for name, address, etc.)


user_info = f"Name: {entry_name.get()}\nAddress: {entry_address.get()}"


Show pop-up message


messagebox.showinfo("User Information", user_info)


root = tk.Tk()


root.title("Mail Delivery Service")


Create interface elements


entry_name = tk.Entry(root)


entry_address = tk.Entry(root)


button_process = tk.Button(root, text="Process", command=process_information)


Layout


entry_name.pack()


entry_address.pack()


button_process.pack()


root.mainloop()

Implementing Delivery Fee Calculation

The next part of the project involves calculating the delivery fee based on specified weight and distance parameters. The given data specifies categories for local and long-distance deliveries. To implement this, the following function can be used:

def calculate_fee(distance, weight, insurance):

if distance == "Local":


if weight 

fee = 5.75


elif weight 

fee = 10.75


else:


fee = 20.75


else:  # Long Distance


if weight 

fee = 35.75


else:


fee = 47.75


Adding insurance fee if selected


if insurance:


fee += 4.00


return fee

Integration of the Fee Calculation into the Application

The fee calculation function can be integrated into the application as follows:

def process_information():

user_info = f"Name: {entry_name.get()}\nAddress: {entry_address.get()}"


distance = distance_var.get()  # Assuming distance selection is a radio button


weight = float(entry_weight.get())  # Assuming weight input is from an entry field


insurance = insurance_var.get()  # Assuming insurance is a checkbox


fee = calculate_fee(distance, weight, insurance)


user_info += f"\nDelivery Fee: ${fee:.2f}"


messagebox.showinfo("User Information", user_info)

User Interface and Experience

It's essential to design a user-friendly interface. The layout should be straightforward, with proper labels for instructions. The pop-up should display all collected information correctly formatted, ensuring that users find the output clear and informative. Images, videos, or diagrams can be added to the Tkinter window for improved engagement.

Testing the Application

Testing is vital to ensure that all elements work harmoniously. Test scenarios should include:

  • Submitting information with various weight and distance combinations.
  • Checking and unchecking the insurance option.
  • Handling unexpected input (e.g., negative weights or non-numeric values).

Each test case should validate that the appropriate fees are calculated, and user information displays correctly in the pop-up.

Conclusion

In conclusion, through the addition of a pop-up information display and a dynamic fee calculation based on input parameters, the Mail Delivery Service application is enhanced significantly. This improvement not only boosts user interaction but also provides real-time feedback on delivery fees, making the service more accessible and easier for users to navigate.

References

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