zbentley opened a new issue, #15610:
URL: https://github.com/apache/pulsar/issues/15610
**Describe the bug**
The Python `pulsar-client` package at version 2.8.1 on Macos cannot connect
to Pulsar brokers at version 2.10.0.
**To Reproduce**
1. Ensure a 2.10 broker standalone instance is running (I used `brew install
apache-pulsar` and confirmed the version with `brew info apache-pulsar`).
1. With a working Python environment, do `pip install 'pulsar-client>2.8'`
1. Do `python -c "import pulsar;
pulsar.Client('pulsar://localhost:6650').get_topic_partitions('foo')"`
1. Observe that a ConnectError is raised.
1. Do `pip install pulsar-client>=2.10`
1. Do `python -c "import pulsar;
pulsar.Client('pulsar://localhost:6650').get_topic_partitions('foo')"`
1. Observe that a ConnectError is not raised.
**Expected behavior**
Old clients should be forwards-compatible with new broker versions unless
documented not to be. I couldn't find any docs indicating that this will not
work.
**Desktop (please complete the following information):**
- OS: MacOS 12, Python 3.7.13 via pyenv.
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