[GitHub] storm pull request #1613: Fix emitting of tuples from bolts with Python 3

[ThijsMergaert <gi...@git.apache.org>]

GitHub user ThijsMergaert opened a pull request:

    https://github.com/apache/storm/pull/1613

    Fix emitting of tuples from bolts with Python 3

    In Python 3, the map() function no longer returns a list, but instead an iterable object, which is not JSON serializable.  To fix this, convert the result of the map() call to a list with the list() function.  This is still compatible with Python 2 (although will create a copy of the list).

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/ThijsMergaert/storm patch-1

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/storm/pull/1613.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1613
    
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commit 0cd8d1da6ab53966ba158569915bc8008c85fb03
Author: Thijs Mergaert <th...@users.noreply.github.com>
Date:   2016-08-05T20:22:48Z

    Fix emitting of tuples from bolts with Python 3
    
    In Python 3, the map() function no longer returns a list, but instead an iterable object, which is not JSON serializable.  To fix this, convert the result of the map() call to a list with the list() function.  This is still compatible with Python 2 (although will create a copy of the list).

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[GitHub] storm issue #1613: Fix emitting of tuples from bolts with Python 3

[HeartSaVioR <gi...@git.apache.org>]

Github user HeartSaVioR commented on the issue:

    https://github.com/apache/storm/pull/1613
  
    @ThijsMergaert 
    Sorry to comment too late.
    
    I'm not sure how much python users use Storm python multi-lang directly, and what's more preferred version, 2 vs 3. If many users still rely on 2, it might be better to avoid creating list and find other workaround. (checking version and if-else?)


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