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https://issues.apache.org/jira/browse/BEAM-12730?focusedWorklogId=664596&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-664596
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ASF GitHub Bot logged work on BEAM-12730:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 13/Oct/21 11:56
            Start Date: 13/Oct/21 11:56
    Worklog Time Spent: 10m 
      Work Description: dmitriikuzinepam commented on a change in pull request 
#15667:
URL: https://github.com/apache/beam/pull/15667#discussion_r727983232



##########
File path: sdks/python/apache_beam/io/textio.py
##########
@@ -561,6 +570,7 @@ def __init__(
         skipped from each source file. Must be 0 or higher. Large number of
         skipped lines might impact performance.
       coder (~apache_beam.coders.coders.Coder): Coder used to decode each line.
+      delimiter (str or bytes): delimiter to split records

Review comment:
       @tvalentyn follow-up changes there 
https://github.com/apache/beam/pull/15715




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

    Worklog Id:     (was: 664596)
    Time Spent: 4h 40m  (was: 4.5h)

> Add custom delimiters to Python TextIO reads
> --------------------------------------------
>
>                 Key: BEAM-12730
>                 URL: https://issues.apache.org/jira/browse/BEAM-12730
>             Project: Beam
>          Issue Type: New Feature
>          Components: io-py-common, io-py-files
>            Reporter: Daniel Oliveira
>            Assignee: Dmitrii Kuzin
>            Priority: P2
>              Labels: beginner, newbie, starter
>          Time Spent: 4h 40m
>  Remaining Estimate: 0h
>
> A common request by users is to be able to separate a text files read by 
> TextIO with delimiters other than newline. The Java SDK already supports this 
> feature.
> The current delimiter code is [located 
> here|https://github.com/apache/beam/blob/v2.31.0/sdks/python/apache_beam/io/textio.py#L236]
>  and defaults to newlines. This function could easily be modified to also 
> handle custom delimiters. Changing this would also necessitate changing the 
> API for the various TextIO.Read methods and adding documentation.
> This seems like a good starter bug for making more in-depth contributions to 
> Beam Python.



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