[jira] [Created] (FLINK-19480) Support RichFunction in Python DataStream API

[Shang Yuanchun (Jira)]

Dian Fu created FLINK-19480:
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             Summary: Support RichFunction in Python DataStream API
                 Key: FLINK-19480
                 URL: https://issues.apache.org/jira/browse/FLINK-19480
             Project: Flink
          Issue Type: Improvement
          Components: API / Python
            Reporter: Dian Fu
            Assignee: Dian Fu
             Fix For: 1.12.0


Currently, RichFunction is still not supported in Python DataStream API. It's a prerequisite for several features, such as:
- Metrics support
- State support
- The other functionalities which are available in the Java FunctionContext



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