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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-10279) Make jython limitations more obvious in documentation
Date Tue, 02 Oct 2018 10:13:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-10279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16635246#comment-16635246

ASF GitHub Bot commented on FLINK-10279:

zentol commented on a change in pull request #6761: [FLINK-10279] [documentation] Make jython
limitations more obvious in documentation.
URL: https://github.com/apache/flink/pull/6761#discussion_r221894735

 File path: docs/dev/stream/python.md
 @@ -50,7 +53,12 @@ existing Java streaming APIs.
 There are two main constraints for using Jython:
 * The latest Python supported version is 2.7
-* It is not straightforward to use Python C extensions
+* It is not straightforward to use Python C extensions, which may prevent reuse of some libraries
+(For more information please see <https://wiki.python.org/jython/JythonFaq/GeneralInfo>.)
+One possible alternative for streaming that allows for native Python execution would be the
Apache Beam
 Review comment:
   add a link to the Apache Beam project, or maybe even a more specific python-related page.

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> Make jython limitations more obvious in documentation
> -----------------------------------------------------
>                 Key: FLINK-10279
>                 URL: https://issues.apache.org/jira/browse/FLINK-10279
>             Project: Flink
>          Issue Type: Task
>          Components: Documentation, Python API
>            Reporter: Thomas Weise
>            Assignee: Thomas Weise
>            Priority: Major
>              Labels: pull-request-available
> The "Python Programming Guide (Streaming) Beta" at [https://ci.apache.org/projects/flink/flink-docs-master/dev/stream/python.html] does
not sufficiently highlight limitations of the API. It should probably have a prominent disclaimer
right at the top stating that this actually isn't a "Python" API but Jython, which likely
means that the user looking for a solution to run native Python code won't be able to use
many important libraries, which is often the reason to look for Python support in first place.

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