Replace column with rows pandas

Question

How do I reshape pivot(using pandas):

          0         1       \
trans -0.521058 -0.521058    
serie -0.521816 -0.521816   
recor -0.468133 -0.468133   

to:

        trans       serie       recor                
0     -0.521058    -0.521816    -0.468133   
1     -0.521058    -0.521816    -0.468133       

Bonus:

How do I append several columns into one datafarme.

I used :

df = df.append(oneCol)

and I receive the first table

*sorry for the spacing

Thanks