[Python-modules-team] Bug#973015: python-adal's autopkg tests are failing with python3.9

[Matthias Klose]

Package: src:python-adal
Version: 1.2.2-1
Severity: serious
Tags: sid bullseye
User: debian-python at lists.debian.org
Usertags: python3.9

/usr/lib/python3.9/http/client.py:245:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <httpretty.core.fakesock.socket object at 0x7f1e1805e3d0>, mode = 'rb'
bufsize = -1

    def makefile(self, mode='r', bufsize=-1):
        """Returns this fake socket's own tempfile buffer.

        If there is an entry associated with the socket, the file
        descriptor gets filled in with the entry data before being
        returned.
        """
        self._mode = mode
        self._bufsize = bufsize

        if self._entry:
            t = threading.Thread(
                target=self._entry.fill_filekind, args=(self.fd,)
            )
            t.start()
            if self.timeout == socket._GLOBAL_DEFAULT_TIMEOUT:
                timeout = None
            else:
                timeout = self.timeout
            t.join(timeout)
>           if t.isAlive():
E           AttributeError: 'Thread' object has no attribute 'isAlive'