How to change the order of DataFrame columns?

Question

I have the following DataFrame (df):

import numpy as np
import pandas as pd

df = pd.DataFrame(np.random.rand(10, 5))

Answer 1

Just flipping helps often.

df[df.columns[::-1]]

Or just shuffle for a look.

import random
cols = list(df.columns)
random.shuffle(cols)
df[cols]