import pandas as pd
import functools
(
pd.Series(range(10))
.apply(lambda x: x * 10)
.where(lambda x: x % 2 == 0)
.pipe(lambda s: functools.reduce(lambda x, y : x + y, s))
) import pandas as pd
import functools
(
pd.Series(range(10))
.apply(lambda x: x * 10)
.where(lambda x: x % 2 == 0)
.pipe(lambda s: functools.reduce(lambda x, y : x + y, s))
)