Series.str.split(pat=None, n=-1, expand=False) [source]
Split each string (a la re.split) in the Series/Index by given pattern, propagating NA values. Equivalent to str.split(). Parameters:
pat : string, default None String or regular expression to split on. If None, splits on whitespace n : int, default -1 (all) None, 0 and -1 will be interpreted as return all splits expand : bool, default False If True, return DataFrame/MultiIndex expanding dimensionality. If False, return Series/In