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https://issues.apache.org/jira/browse/AIRFLOW-4833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16949289#comment-16949289
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ASF subversion and git services commented on AIRFLOW-4833:
----------------------------------------------------------

Commit ddf0f3050869f011d2da6c6434ea23a83e407402 in airflow's branch 
refs/heads/v1-10-stable from Géraud
[ https://gitbox.apache.org/repos/asf?p=airflow.git;h=ddf0f30 ]

[AIRFLOW-4833] Allow to set Jinja env options in DAG declaration (#5943)

(cherry picked from commit 3d14a51cdb4dee5c96c2397e7df2626a52eec157)


> Jinja templating removes newlines
> ---------------------------------
>
>                 Key: AIRFLOW-4833
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-4833
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: operators
>    Affects Versions: 1.10.2
>            Reporter: Francesco Macagno
>            Assignee: Galak
>            Priority: Minor
>             Fix For: 1.10.6
>
>
> When using an operator that has Jinja templating enabled for a field, if the 
> field value ends with a newline then the newline is removed, regardless of 
> whether there was a template in the string.
>  
> This came up when attempting to send data to Prometheus pushgateway using the 
> SimpleHttpOperator. Pushgateway requires a newline at the end of every entry, 
> so the removal of the newline at the end of the data parameter causes the 
> request to fail in a way that is difficult to debug.
>  
> This can be gotten around by including a space after the newline character, 
> though this is not a great solution. The space is ignored by pushgateway.



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