[jira] [Created] (ARROW-1418) [Python] Introduce SerializationContext to register custom serialization callbacks

["Philipp Moritz (JIRA)" <ji...@apache.org>]

Philipp Moritz created ARROW-1418:
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             Summary: [Python] Introduce SerializationContext to register custom serialization callbacks
                 Key: ARROW-1418
                 URL: https://issues.apache.org/jira/browse/ARROW-1418
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
    Affects Versions: 0.6.0
            Reporter: Philipp Moritz
            Priority: Minor
             Fix For: 0.7.0


In the first iteration of the Python serialization code, we used global variables to store the custom serialization and deserialization callback functions. This global state is undesirable because if the user wants to use different serialization callbacks with different types registered, they need to remember resetting the state. As Wes suggested, a good way to address this is by introducing a SerializationContext that has the callbacks and gets passed around.



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