This application is a case study for the development of a GUI with Python 3.

The example is a contact management application. It implements a few basic operations on the command line, which are also offered by the GUI.

Registers a new contact with the given information.

• Usage:

    AC Name
    EmailAddress
    PhoneNumber
  

• Output:

  • Success:

    Contact successfully created.
    

  • Failure:

    The contact already exists.
    

Changes the email address of a contact.

• Usage:

    ECE Name
    NewEmailAddress
  

• Output:

  • Success:

    Contact successfully updated.
    

  • Failure:

    There is no such contact.
    Invalid email.
    

Changes the phone number of a contact.

• Usage:

    ECP Name
    NewPhoneNumber
  

• Output:

  • Success:

    The contact was successfully updated.
    

  • Failure:

    There is no such contact.
    Invalid phone number.
    

Lists all contacts, showing the names.

• Usage:

    LC
  

• Output:

  • Success:

    Name
    Name
    ...
    

  • Failure:

    No contacts available.
    

Shows all the information about a contact.

• Usage: SC Name

• Output:

  • Success:

    Name
    EmailAddress
    PhoneNumber
    

  • Failure:

    No such contact.
    

Deletes the contact with the given name.

• Usage:

    DC Name
  

• Output:

  • Success:

    Contact deleted.
    

  • Failure:

    No such contact.
    

List contacts whose names match the given pattern.

• Usage:

  SC PartialName

• Output:

  • Success with results:

    Name
    Name
    ...
    

  • Success without results:

    No results.
    

  • Failure:

    No contacts available.
    

AED DCT UAL © 2020