Anonymizing data / replacing names

Question

Normally I anonymize my data by using hashlib and using the .apply(hash) function.

Now im trying a new approach, imagine I have to following df called \'data\':

Answer 1

I think faster solution is use factorize for unique values, add 1, convert to Series and strings and prepend Person string:

df['contributor'] = 'Person' + pd.Series(pd.factorize(df['contributor'])[0] + 1).astype(str)
print (df)
  contributor  amount payed
0     Person1            10
1     Person2            28
2     Person3            49
3     Person2            77
4     Person4            31