Return or yield from a function that calls a generator?

You’re probably looking for Generator Delegation (PEP380)

For simple iterators, yield from iterable is essentially just a shortened form of for item in iterable: yield item

def generator(iterable):
  for i in iterable:
    yield do_something(i)

def generate_all():
  yield from generator(get_the_list())

It’s pretty concise and also has a number of other advantages, such as being able to chain arbitrary/different iterables!