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https://issues.apache.org/jira/browse/BEAM-4833?focusedWorklogId=130294&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-130294
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ASF GitHub Bot logged work on BEAM-4833:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 02/Aug/18 15:49
            Start Date: 02/Aug/18 15:49
    Worklog Time Spent: 10m 
      Work Description: aaltay commented on a change in pull request #6005: 
[BEAM-4833] Add support for user req.txt for portable python
URL: https://github.com/apache/beam/pull/6005#discussion_r207278269
 
 

 ##########
 File path: sdks/python/container/Dockerfile
 ##########
 @@ -79,14 +80,18 @@ RUN \
     pip install "tensorflow == 1.4.0" && \
     pip install "protorpc == 0.11.1" && \
     pip install "python-gflags == 3.0.6" && \
-    # Remove pip cache.
 
 Review comment:
   @holdenk please address this comment.

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 130294)
    Time Spent: 1h 40m  (was: 1.5h)

> Add support for users specifying a requirements.txt for their Python portable 
> container
> ---------------------------------------------------------------------------------------
>
>                 Key: BEAM-4833
>                 URL: https://issues.apache.org/jira/browse/BEAM-4833
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py-core
>            Reporter: holdenk
>            Assignee: holdenk
>            Priority: Minor
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> It's pretty common that Python scripts require extra dependencies, even the 
> tensorflow model analysis TFMA example requires a different version of TF 
> than the one we install by default. While users can roll their own container 
> or edit the Dockerfile, it would probably be useful to provide an easier path 
> to integrating their dependencies.
> While we support automatically installing the dependencies at runtime on the 
> workers, this can be very slow, especially for things like tensorflow, arrow, 
> or other numeric heavy code.
> Another alternative could be a simple script to augment the existing base 
> image.



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