import pandas
pandas.__file__

from pandas.core import window as rwindow

@Appender(rwindow.rolling.__doc__)
def rolling(self, window, min_periods=None, freq=None, center=False,
            win_type=None, on=None, axis=0, closed=None):
    axis = self._get_axis_number(axis)
    return rwindow.rolling(self, window=window,
                           min_periods=min_periods, freq=freq,
                           center=center, win_type=win_type,
                           on=on, axis=axis, closed=closed)

def rolling(obj, win_type=None, **kwds):
    from pandas import Series, DataFrame
    if not isinstance(obj, (Series, DataFrame)):
        raise TypeError('invalid type: %s' % type(obj))

    if win_type is not None:
        return Window(obj, win_type=win_type, **kwds)

    return Rolling(obj, **kwds)