31 lines
606 B
Python
31 lines
606 B
Python
# BEGIN DECORATED_AVERAGER
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"""
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A coroutine to compute a running average
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>>> coro_avg = averager() # <1>
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>>> from inspect import getgeneratorstate
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>>> getgeneratorstate(coro_avg) # <2>
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'GEN_SUSPENDED'
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>>> coro_avg.send(10) # <3>
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10.0
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>>> coro_avg.send(30)
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20.0
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>>> coro_avg.send(5)
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15.0
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"""
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from coroutil import coroutine # <4>
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@coroutine # <5>
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def averager(): # <6>
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total = 0.0
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count = 0
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average = None
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while True:
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term = yield average
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total += term
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count += 1
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average = total/count
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# END DECORATED_AVERAGER
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