Hex to base64 created by Hwatwasthat - https://repl.it/@Hwatwasthat/Hex-to-base64

main.py

import base64
b = '49276d206b696c6c696e6720796f757220627261696e206c696b65206120706f69736f6e6f7573206d757368726f6f6d'

def hex_to_base64(input):
  # convert hex to bytearray
  result = bytearray.fromhex(input)

  # convert bytearray to base64
  a = base64.b64encode(result)

  # strip out parts at either end of a, the b' and ' symbology
  a = str(a).strip("'b'")
  return a


print (hex_to_base64(b))

XOR.py

import base64

def hex_to_base64(input):
  result = bytearray.fromhex(input)
  result = base64.b64encode(result)
  result = str(result).strip("'b'")
  return result