how to convert series to dataframe in pandas code example

Example 1: pandas.core.series.series to dataframe

>>> s = pd.Series(["a", "b", "c"],
...               name="vals")
>>> s.to_frame()
  vals
0    a
1    b
2    c

Example 2: series to dataframe

pd.DataFrame({'email':sf.index, 'list':sf.values})