fluentpython-example-code/attic/decorators/average_partial.py at master · stly/fluentpython-example-code

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"""

>>> import functools

>>> avg = functools.partial(averager, series=[])

>>> avg(10)

10.0

>>> avg(11)

10.5

>>> avg(12)

11.0

>>> avg.args

()

>>> avg.keywords

{'series': [10, 11, 12]}

>>> avg.func # doctest: +ELLIPSIS

>>> avg.func.__code__.co_varnames

('new_value', 'series', 'total')

"""

DEMO = """

>>> avg.func

>>> avg.func.__code__.co_varnames

('new_value',)

>>> avg.__code__.co_freevars

('num_items', 'total')

>>> avg.__closure__

"""

def averager(new_value, series):

series.append(new_value)

total = sum(series)

return float(total)/len(series)