wiki.Wiki fails when setting httpuser and httppass as api.py passes a string to base64.encodestring

Hi, I am still trying to migrate a python 2.7 script to python3, using wikitools3, as in issue #8.

Now am I using the develop branch of this project, not a release. My script fails again, for a different reason.

So if I simplify it again, it boils down to this new test_wikitools.py in which I added a login and password to wiki.Wiki:

#!/usr/bin/env python
""" quick and dirty script aimed at debugging wikitools3 """
""" see issues https://github.com/mediawiki-client-tools/wikitools3/issues """

import os
from wikitools3 import wiki

# now I am using my company's wiki api with credentials
api_url = os.environ.get('WIKI_URL')
username = os.environ.get('WIKI_USER')
password = os.environ.get('WIKI_PASSWORD')
print("api_url: " + str(api_url) + " username: " + username)
if not password:
    print("Empty variable: WIKI_PASSWORD")
    sys.exit(1)
site = wiki.Wiki(api_url, username, password, True)

After making sure I set the WIKI_URL, WIKI_USER and WIKI_PASSWORD variables and run this script, it fails like this:

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/base64.py", line 510, in _input_type_check
    m = memoryview(s)
TypeError: memoryview: a bytes-like object is required, not 'str'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "./test_wikitools.py", line 16, in <module>
    site = wiki.Wiki(api_url, username, password, True)
  File "/workdir/wikitools3/wiki.py", line 112, in __init__
    self.setSiteinfo()
  File "/workdir/wikitools3/wiki.py", line 130, in setSiteinfo
    req = api.APIRequest(self, params)
  File "/workdir/wikitools3/api.py", line 99, in __init__
    base64.encodestring(f"{wiki.auth}:{wiki.httppass}")
  File "/usr/local/lib/python3.8/base64.py", line 540, in encodestring
    return encodebytes(s)
  File "/usr/local/lib/python3.8/base64.py", line 527, in encodebytes
    _input_type_check(s)
  File "/usr/local/lib/python3.8/base64.py", line 513, in _input_type_check
    raise TypeError(msg) from err
TypeError: expected bytes-like object, not str

Apparently base64.encodestring expects bytes not a string. This patch on api.py line 99 seems to fix the problem:

         if wiki.auth:
             self.headers["Authorization"] = "Basic {0}".format(
-                base64.encodestring(f"{wiki.auth}:{wiki.httppass}")
+                base64.encodestring(f"{wiki.auth}:{wiki.httppass}".encode()).decode()
             ).replace("\n", "")

(And then my main script will fail later for a different reason, but I guess this will be a seperate issue).

mediawiki-client-tools / wikitools3

wiki.Wiki fails when setting httpuser and httppass as api.py passes a string to base64.encodestring #9