Control: tags -1 patch
In addition to the hangs, several tests fail.
It looks like the trigger is botocore enabling checksums by default:
https://sources.debian.org/src/python-boto3/1.36.0%2Bdfsg-1/CHANGELOG.rst/#L12
Turning them off with AWS_REQUEST_CHECKSUM_CALCULATION=when_required
makes the tests pass:
https://salsa.debian.org/python-team/packages/smart-open/-/tree/experiments1095392?ref_type=heads
However, I haven't looked closely enough to say whether this is actually
a full solution.
It isn't obviously known to upstream.
