python - No attribute error when resampling -

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i have dataframe

        date    count 0   2012-03-23  2 1   2012-03-25  1 2   2012-03-26  1 3   2012-03-27  1 4   2012-03-28  3 5   2012-04-05  2 6   2012-04-06  1 7   2012-04-08  2 8   2012-04-10  1 9   2012-04-11  1

i trying daterange date column using

df.set_index('date').resample('d').fillna(0).reset_index()

but results in 

attributeerror: 'int' object has no attribute 'lower'

even though date column no strings in it.

any idea casuing error?

future warning says resample deferred method.

you pieced solution already.

df.set_index('date').resample('d').mean().fillna(0).reset_index()

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