Скачать или смотреть Python beginners mini project dictionary database 2022

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sure! in this tutorial, we will create a simple python mini-project that uses a dictionary as a database to store, retrieve, update, and delete records. this project simulates a contact management system where we can manage contacts (name, phone number, and email).

project overview

we will implement the following functionalities:

1. add a contact
2. view all contacts
3. update a contact
4. delete a contact
5. search for a contact

setting up the project

you need to have python installed on your computer. you can use any ide (like pycharm, vscode, or jupyter notebook) or even just a simple text editor.

code implementation

here's the complete code for our contact management system:



how to run the project

1. **save the code**: copy the above code into a file named `contact_manager.py`.

2. **run the program**:
open your terminal or command prompt.
navigate to the directory where you saved `contact_manager.py`.
run the command: `python contact_manager.py`.

3. **using the program**:
follow the on-screen menu to add, view, update, delete, or search contacts.

explanation of the code

**function definitions**:
`display_menu()`: displays the main menu.
`add_contact(contacts)`: prompts the user to enter contact details and adds them to the dictionary.
`view_contacts(contacts)`: displays all contacts stored in the dictionary.
`update_contact(contacts)`: allows the user to update an existing contact's information.
`delete_contact(contacts)`: deletes a contact from the dictionary.
`search_contact(contacts)`: searches for a specific contact by name.

**main loop**: the `main()` function initializes an empty dictionary to hold contacts and runs an infinite loop that displays the menu and processes user choices.

conclusion

this mini-project is a great way to practice the usage of dictionaries in python. you can further enhance it by adding features like data validation, saving contacts to a file, ...

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