[jira] [Commented] (AVRO-3750) Python Optional UUIDs are not allowed

["Daniel Young (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AVRO-3750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17718651#comment-17718651 ] 

Daniel Young commented on AVRO-3750:
------------------------------------

I would like to fix this by adding an additional catch for TypeError here: [https://github.com/apache/avro/blob/master/lang/py/avro/schema.py#L1046]

> Python Optional UUIDs are not allowed
> -------------------------------------
>
>                 Key: AVRO-3750
>                 URL: https://issues.apache.org/jira/browse/AVRO-3750
>             Project: Apache Avro
>          Issue Type: Bug
>          Components: python
>    Affects Versions: 1.11.1
>            Reporter: Daniel Young
>            Priority: Major
>
> If a union type of null and logical type of uuid is used, Avro will try to decode the object as a UUID and create a TypeError exception, which is not caught.
> Example Schema:
> {code:java}
> {
>   "name": "userId",
>   "type": [
>     "null",
>     {
>       "type": "string",
>       "logicalType": "uuid"
>     }
>   ]
> }{code}
> if the example schema is given a userId of None then the application will stop with an uncaught exception.



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