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From sb2nov <>
Subject [GitHub] beam pull request #1805: [BEAM-886] Implement Annotation based NewDoFn in py...
Date Fri, 20 Jan 2017 22:21:25 GMT
GitHub user sb2nov opened a pull request:

    [BEAM-886] Implement Annotation based NewDoFn in python SDK

    - Implement the new annotation based DoFn in python see
    - Handle typechecking in the NewDoFn
    - All unittests pass
    - None of the actual DoFn use the new ones yet
    Future work:
    - Performance test New Vs Old DoFn
    - Migrate the OldDoFn to New
    - Remove OldDoFn from the code
    - Rename NewDoFn to DoFn
    - Deprecate use of context 
    Be sure to do all of the following to help us incorporate your contribution
    quickly and easily:
     - [x] Make sure the PR title is formatted like:
       `[BEAM-<Jira issue #>] Description of pull request`
     - [x] Make sure tests pass via `mvn clean verify`. (Even better, enable
           Travis-CI on your fork and ensure the whole test matrix passes).
     - [x] Replace `<Jira issue #>` in the title with the actual Jira issue
           number, if there is one.
     - [ ] If this contribution is large, please file an Apache
           [Individual Contributor License Agreement](
    R: @robertwb  PTAL

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

    $ git pull BEAM-886-Add-NewDoFn-class-1

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

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

    This closes #1805
commit f8ae4f2ccc399c6c0952f903b5e140986c61a933
Author: Sourabh Bajaj <>
Date:   2017-01-20T22:17:00Z

    Implement Annotation based NewDoFn in python SDK


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