def repeatAlways(child, **kwargs):
"""Perpetually iterate over the child, regardless of return value.
"""
result = None
while True:
try:
visitor = core.visit(child, **kwargs)
except StopIteration:
continue
while result is None:
try:
result = (yield visitor.next())
except StopIteration:
yield None
break
def limit(child, **kwargs):
"""Limit the child to only iterate once every period.
Otherwise, act as an identity decorator.
@keyword limit_period: how often to run the child, in seconds.
"""
nowtime = time.time
last_run = nowtime()
period = kwargs.get('limit_period', 1.0)
result = None
visitor = core.visit(child, **kwargs)
while True:
now = nowtime()
since_last = now - last_run
if (since_last) <= period:
yield None
continue
last_run = nowtime()
result = visitor.next()
yield result
def limit(child, **kwargs):
"""Limit the child to only iterate once every period.
Otherwise, act as an identity decorator.
@keyword limit_period: how often to run the child, in seconds.
"""
nowtime = time.time
last_run = nowtime()
period = kwargs.get('limit_period', 1.0)
result = None
visitor = core.visit(child, **kwargs)
while True:
now = nowtime()
since_last = now - last_run
if (since_last) <= period:
yield None
continue
last_run = nowtime()
result = visitor.next()
yield result
