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https://issues.apache.org/jira/browse/AVRO-748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16984569#comment-16984569
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Hudson commented on AVRO-748:
-----------------------------
SUCCESS: Integrated in Jenkins build AvroJava #781 (See
[https://builds.apache.org/job/AvroJava/781/])
AVRO-748: Protocol Error Schema Implicit String (#717) (github:
[https://github.com/apache/avro/commit/d28bf07d2da8dbddb561630ca69c0cee2d3f5b52])
* (edit) lang/py/src/avro/protocol.py
* (edit) lang/py/test/test_schema.py
* (edit) lang/py/test/test_protocol.py
> Python library does not include the implicit 'string' error type for messages
> -----------------------------------------------------------------------------
>
> Key: AVRO-748
> URL: https://issues.apache.org/jira/browse/AVRO-748
> Project: Apache Avro
> Issue Type: Bug
> Components: python
> Affects Versions: 1.4.1
> Environment: Ubuntu, Python 2.6.6
> Reporter: Christopher Armstrong
> Assignee: Michael A. Smith
> Priority: Major
>
> Here's a trivial test case:
> {code:python}
> schema = """
> {
> "namespace": "test",
> "protocol": "test",
> "types": [],
> "messages": {"test_method": {
> "request": [],
> "response": "string"}}
> }
> """
> from avro.protocol import parse
> protocol = parse(schema)
> assert protocol.messages['test_method'].errors is not None
> {code}
> This may be a bit white-box; the problem actually manifests in
> avro.ipc.Responder.respond (line 338), when making a call to write_error with
> the "writers_schema" being "local_message.errors". local_message.errors is
> None, and it blows up while validating the schema.
> This only seems to happen when there is *no* errors field in the message; if
> an errors field is provided, it still doesn't explicitly include "string" in
> the "errors" field, but it does seem to allow the error message to be passed
> back. So maybe this is an error in the protocol parser, or maybe it's an
> error in the code that actually tries to write the error response.
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