Programmer example
Input
do_work(Programmer('Ada'))
Output
Programmer Ada is coding
Programmer overrides work() to return a message about coding; do_work simply calls worker.work() and returns that string.
Full lesson preview
Dispatch Actions Based on Subclass Type Polymorphically
Implement subclass-specific behavior and call it through a common interface without type checks.
Python practice15 minInheritance & PolymorphismIntermediateLast updated April 8, 2026
Problem statement
You are given a base class Worker with several subclasses (Programmer, Chef, Teacher). Each subclass should implement its own work() method that returns a string describing the action the worker performs. Implement the subclasses' work methods so that a single function do_work(worker) can call the correct behavior polymorphically (without using isinstance or type checks).
Task
Learn to override methods in subclasses and use a single dispatcher function that relies on polymorphism rather than explicit type checks.
Examples
Input format
A single Worker subclass instance passed to do_work.
Output format
A string describing what the worker is doing.
Constraints
Do not use isinstance, type checks, or conditional branching based on subclass type. Rely on method overriding (polymorphism).
Samples
Sample 1
Input
do_work(Chef('Gordon'))
Output
Chef Gordon is cooking
Chef.work() returns the cooking message and do_work returns it unchanged.