Hash each row of pandas dataframe column using apply

Question

I\'m trying to hash each value of a python 3.6 pandas dataframe column with the following algorithm on the dataframe-column ORIG:

HK_ORIG = base64.b64encode(         


        

Answer 1

You can either create a named function and apply it - or apply a lambda function. In either case, do as much processing as possible withing the dataframe.

A lambda-based solution:

df['ORIG'].astype(str).str.encode('UTF-8')\
          .apply(lambda x: base64.b64encode(hashlib.sha1(x).digest()))

A named function solution:

def hashme(x):
    return base64.b64encode(hashlib.sha1(x).digest())
df['ORIG'].astype(str).str.encode('UTF-8')\
          .apply(hashme)