Newbie question on how to use pandas.rolling_mean

[zydjohn]

from numpy import *
import numpy as np
import pandas as pd

data = [1.0, 2.0, 3.0, 4.0]
s1 = pd.Series(data)
rollmean = pd.Series.rolling(s1, 2).mean()
#print(rollmean)
filled0 = [0.0 if isnan(item) else item for item in rollmean]
print(filled0)

Great, I have figured it out with the above code.
Thanks,