How to reverse the order of first and last name in a Pandas Series

Question

I have a pandas series:

names = pd.Series([
\'Andre Agassi\',
\'Barry Bonds\',
\'Christopher Columbus\',
\'Daniel Defoe\',
\'Emilio Estevez\',
\'Fred Flintstone\         


        

Answer 1

Vectorized Numpy solution:

In [276]: arr = names.str.split(expand=True).values[:, ::-1]

In [277]: names.values[:] = np.sum(np.insert(arr, 1, ', ', axis=1), axis=1)

In [278]: names
Out[278]:
0            Agassi, Andre
1             Bonds, Barry
2    Columbus, Christopher
3            Defoe, Daniel
4          Estevez, Emilio
5         Flintstone, Fred
6             Garbo, Greta
7         Humbert, Humbert
8              Ilych, Ivan
dtype: object