hide password in python code example

Example: hide password in python

#https://docs.python.org/3/library/base64.html

>>> import base64
>>>  print(base64.b64encode("password".encode("utf-8")))
cGFzc3dvcmQ=
>>> print(base64.b64decode("cGFzc3dvcmQ=").decode("utf-8"))
password