def _handle_digest_auth_401(self, r, kwargs):
        self.auth = auth_compat.HTTPDigestAuth(self.username, self.password)
        try:
            self.auth.init_per_thread_state()
        except AttributeError:
            # If we're not on requests 2.8.0+ this method does not exist and
            # is not relevant.
            pass

        # Check that the attr exists because much older versions of requests
        # set this attribute lazily. For example:
        # https://github.com/kennethreitz/requests/blob/33735480f77891754304e7f13e3cdf83aaaa76aa/requests/auth.py#L59
        if (hasattr(self.auth, 'num_401_calls') and
                self.auth.num_401_calls is None):
            self.auth.num_401_calls = 1
        # Digest auth would resend the request by itself. We can take a
        # shortcut here.
        return self.auth.handle_401(r, **kwargs)
dataset/ETHPy150Open sigmavirus24/requests-toolbelt/requests_toolbelt/auth/guess.py/GuessAuth._handle_digest_auth_401/original