import pandas as pd

df = pd.DataFrame()
df[0] = pd.Series( [ 'a', 'aa', 'c' ] * 2 )
df[1] = pd.Series( [ 1, 2 ] * 3 )
df[2] = pd.Series( range(6) )
print( df )

    0  1  2
0   a  1  0
1  aa  2  1
2   c  1  2
3   a  2  3
4  aa  1  4
5   c  2  5

order = [ 'a', 'c', 'aa' ]

print( sorted_df )

    0  1  2
0   a  1  0
1   a  2  3
2   c  1  2
3   c  2  5
4  aa  1  4
5  aa  2  1