Python 3: Project-based Python, Algorithms, Data Structures - Functions - execution context, frames, mutable vs. immutab

The video tutorial covers the implementation of the 'add to file' method in a student class, ensuring that records are not duplicated. It then transitions to a discussion on inheritance, demonstrating how a student athlete class can inherit attributes and methods from a student class. The tutorial includes testing the methods and concludes with a brief overview of Python's object hierarchy and the use of the 'isinstance' function.

What is the primary purpose of the 'add to file' method in the student class?

• To add new student records without duplication

• To delete student records from the file

• To update existing student records

• To sort student records alphabetically

Which method is used to check if a student already exists in the file?

• find_in_file

• locate_entry

• search_record

• check_student

What is the purpose of the 'prep to write' function?

• To delete student records

• To sort student records

• To format student records for writing

• To read student records from a file

What limitation does the 'add to file' method have?

• It cannot add new records

• It cannot delete records

• It cannot update existing records

• It cannot read records

What is inheritance in Python?

• A function to sort class attributes

• A method to delete classes

• A tool to compile Python code

• A way to create new classes from existing ones

What does a subclass inherit from its superclass?

• Neither attributes nor methods

• Only methods

• Only attributes

• Both attributes and methods

How can you define a subclass in Python?

• By using the 'class' keyword with the superclass in parentheses

• By using the 'inherit' keyword

• By using the 'extend' keyword

• By using the 'subclass' keyword

What additional attribute is added to the 'student athlete' subclass?

• Address

• Grade

• Sport

• Age

What function is used to check if an object is an instance of a specific class?

• isinstance

• typecheck

• classof

• objecttype

What happens if a subclass does not have an init method?

• It cannot be instantiated

• It uses the init method of its superclass

• It throws an error

• It automatically creates a default init method