Check if all values in dataframe column are the same

Question

I want to do a quick and easy check if all column values for counts are the same in a dataframe:

In:

import pandas as pd

d = {\'names\'         


        

Answer 1

Update using np.unique

len(np.unique(df.counts))==1
False

Or

len(set(df.counts.tolist()))==1

Or

df.counts.eq(df.counts.iloc[0]).all()
False

Or

df.counts.std()==0
False