gistfile1.txt

def ping(host):
  ip = yield hostname_lookup(host)
  pingrate = (yield ping_ip(ip))
  raise StopIteration(pingrate) # uthreaded equivalent of "return"

## incorrect
def multiping(hosts):
  for host in hosts:
    ping(host)

## correct
def multiping(hosts):
  for host in hosts:
    yield ping(host)

# I realize this is a fairly contrived example!

# Question: how can I help detect programmer errors like this, where a generator function is called and
# the generator is immediately discarded?