Yunze Xu

Could you generate the core file (assuming the name is `core`) and just run `gdb python core`? In addition, could you share your Python script with the correct indent (use...

> Is it true that our pulsar client does not support Python 3.9? It supports Python 3.9.

You can verify if the library supports Python 3.9 with a simple e2e case on a Pulsar standalone (no TLS or authentication configured).

Could you provide your OS version and how did you install the Python client? Installed from `pip` or building from source? Could you try the wheel from [StreamNative's 2.10.1.6 release](https://github.com/streamnative/pulsar/releases/tag/v2.10.1.6)?

> can make the openssl to 1.1.1? Maybe we need to enhance the Python wheel build script. @RobertIndie would you like to take over this task?

I think the core question is that how did you generate the certificates? What's the version of the `openssl` you used? It could help reproduce the issue.

@RobertIndie @merlimat @Demogorgon314 Could any of you leave a 2nd review?

Okay, I will review it soon.

> I keep encoding type in KeyValue. Because if will remove it, will affect the API. The encoding type is already included in the schema, which is set in the...

Hi @shibd, I've completed my review except some details of tests, PTAL.