[GitHub] spark pull request #16845: [SPARK-19505][Python] AttributeError on Exception...

[dgingrich <gi...@git.apache.org>]

Github user dgingrich commented on a diff in the pull request:

    https://github.com/apache/spark/pull/16845#discussion_r105249885
  
    --- Diff: python/pyspark/util.py ---
    @@ -0,0 +1,45 @@
    +# -*- coding: utf-8 -*-
    +#
    +# Licensed to the Apache Software Foundation (ASF) under one or more
    +# contributor license agreements.  See the NOTICE file distributed with
    +# this work for additional information regarding copyright ownership.
    +# The ASF licenses this file to You under the Apache License, Version 2.0
    +# (the "License"); you may not use this file except in compliance with
    +# the License.  You may obtain a copy of the License at
    +#
    +#    http://www.apache.org/licenses/LICENSE-2.0
    +#
    +# Unless required by applicable law or agreed to in writing, software
    +# distributed under the License is distributed on an "AS IS" BASIS,
    +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    +# See the License for the specific language governing permissions and
    +# limitations under the License.
    +#
    +
    +__all__ = []
    +
    +
    +def _exception_message(excp):
    +    """Return the message from an exception as either a str or unicode object.  Supports both
    +    Python 2 and Python 3.
    +
    +    >>> msg = "Exception message"
    +    >>> excp = Exception(msg)
    +    >>> msg == _exception_message(excp)
    +    True
    +
    +    >>> msg = u"unic�de"
    +    >>> excp = Exception(msg)
    +    >>> msg == _exception_message(excp)
    +    True
    +    """
    +    if hasattr(excp, "message"):
    +        return excp.message
    +    return str(excp)
    +
    +
    +if __name__ == "__main__":
    +    import doctest
    +    (failure_count, test_count) = doctest.testmod()
    --- End diff --
    
    Thanks Holden, looking at this today (sorry for the delay, been busy at work).
    
    FWIW the patch to add support for the utility function `six` was rejected: https://github.com/benjaminp/six/pull/177


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