What is the difference between return and yield operators in the context of functions and generators?

The return operator is used in functions to return a value and terminate the function's execution. After return, the function stops and returns the specified value.

The yield operator is used in generators — special functions that return an iterator. When a generator is called, the function's execution is paused at yield, returning a value, and can be resumed later from the same point. This allows efficient handling of data sequences without needing to store them entirely in memory.

Example:

# Function with return
def func_return():
    return 1

# Generator with yield
def func_yield():
    yield 1
    yield 2

print(func_return())       # Outputs: 1
print(list(func_yield()))  # Outputs: [1, 2]

Thus, return terminates the function and returns a value, while yield allows creating iterators by returning values one at a time and preserving the function's state between calls.