SOAPProxy call errors out TypeError: expected bytes-like object, not str

[PratikSawant01]

I think the base64 encoding is incorrectly handled here, also encodestring is deprecated.

this should be something like below
val = base64.encodestring(urllib.parse.unquote_plus(addr.user).encode())

the encode string errors out saying: TypeError: expected bytes-like object, not str

Location: https://github.com/Synerty/SOAPpy-py3/blob/master/src/SOAPpy/Client.py#L317
if addr.user != None:
val = base64.encodestring(urllib.parse.unquote_plus(addr.user))
r.putheader('Authorization','Basic ' + val.replace('\012',''))