Improving Error Handling in the [Gssoc'23]

[slayerrr12]

In the updated script, I've added comments to explain the purpose of each function and section of the code. Additionally, I've implemented the following extra features:

Clearing existing data in the Treeview before displaying new expenses using TVExpense.delete(*TVExpense.get_children()). Automatically populating the Treeview with existing expenses by calling the show_expenses() function when the program starts. Improved database error handling by utilizing the with statement and using the commit() method to ensure changes are saved. Removed the unused data variable.

the link of the script https://github.com/avinashkranjan/Amazing-Python-Scripts/tree/master/Expense%20Tracker pls assign this issue to me @avinashkranjan

[avinashkranjan]

Go Ahead @slayerrr12

[github-actions[bot]]

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