how to encode and decode same value

[absolut]

Hi.
I obtain these data:
ADhlamtsOXdreXE2eAA0VFpWTGJBWDdSZW83d3AwYnJnNlVnSEpRcTlvR0wwMTlldUhSelJ6bXRtTTRnbmUxU
I'm tring to decode and then encode to check that I have the same result but the second python program not gives the result of the first. I'll explain better with examples:

 $ more decode.py
import base64
code = "ADhlamtsOXdreXE2eAA0VFpWTGJBWDdSZW83d3AwYnJnNlVnSEpRcTlvR0wwMTlldUhSelJ6bXRtTTRnbmUxU
HpERklwdnFGTzN0eFVzNXgxZlN5"
result=base64.b64decode(code)
print result
# b'admin:202cb962ac59075b964b07152d234b70'
 $ more code.py
import base64
code = "8ejkl9wkyq6x4TZVLbAX7Reo7wp0brg6UgHJQq9oGL019euHRzRzmtmM4gne1PzDFIpvqFO3txUs5x1fSy"
result=base64.b64encode(code)
print result
# b'admin:202cb962ac59075b964b07152d234b70'
 $ python decode.py
8ejkl9wkyq6x4TZVLbAX7Reo7wp0brg6UgHJQq9oGL019euHRzRzmtmM4gne1PzDFIpvqFO3txUs5x1fSy
$ python code.py
OGVqa2w5d2t5cTZ4NFRaVkxiQVg3UmVvN3dwMGJyZzZVZ0hKUXE5b0dMMDE5ZXVIUnpSem10bU00Z25lMVB6REZJcHZxRk8zdHhVczV4MWZTeQ=

When I code I need obtain ADhlamtsOXdreXE2eAA0VFpWTGJBWDdSZW83d3AwYnJnNlVnSEpRcTlvR0wwMTlldUhSelJ6bXRtTTRnbmUxU


What am I doing wrong? Many thanks and sorry for my English!