zkpython lumps all exceptions as IOError, needs specialized exceptions for
KeeperException types
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Key: ZOOKEEPER-510
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-510
Project: Zookeeper
Issue Type: Bug
Components: contrib-bindings
Affects Versions: 3.2.0
Reporter: Patrick Hunt
Fix For: 3.3.0
The current zkpython bindings always throw "IOError("text")" exceptions, even
for ZK specific exceptions such as NODEEXISTS. This makes it difficult (error
prone) to handle exceptions in python code. You can't easily pickup a
connection loss vs a node exists for example. Of course you could match the
error string, but this seems like a bad idea imo.
We need to add specific exception types to the python binding that map directly
to KeeperException/java types. It would also be useful to include the
information provided by the KeeperException (like path in some cases), etc...
as part of the error thrown to the python code. Would probably be a good idea
to stay as close to java api as possible wrt mapping the errors.
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