[ 
https://issues.apache.org/jira/browse/ARROW-3045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Krisztian Szucs updated ARROW-3045:
-----------------------------------
    Description: 
Nullcheck is required to prevent segfaults if the extension classes are not (or 
partially) constructed.
Explicitly disallowing Message() and MessageReader() construction makes 
nullchecks unnecessary.

See 
https://github.com/apache/arrow/commit/44bfd0d5a7f4a68b3ab7ce72cd2b68f62a6fec5c 
for previous work.

> [Python] Remove nullcheck from ipc Message and MessageReader
> ------------------------------------------------------------
>
>                 Key: ARROW-3045
>                 URL: https://issues.apache.org/jira/browse/ARROW-3045
>             Project: Apache Arrow
>          Issue Type: Task
>            Reporter: Krisztian Szucs
>            Assignee: Krisztian Szucs
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Nullcheck is required to prevent segfaults if the extension classes are not 
> (or partially) constructed.
> Explicitly disallowing Message() and MessageReader() construction makes 
> nullchecks unnecessary.
> See 
> https://github.com/apache/arrow/commit/44bfd0d5a7f4a68b3ab7ce72cd2b68f62a6fec5c
>  for previous work.



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