[jira] [Updated] (SPARK-17587) SparseVector __getitem__ should follow __getitem__ contract

["Joseph K. Bradley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-17587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joseph K. Bradley updated SPARK-17587:
--------------------------------------
    Affects Version/s:     (was: 1.6.0)
                       1.6.2
     Target Version/s: 2.0.2, 2.1.0

> SparseVector __getitem__ should follow __getitem__ contract
> -----------------------------------------------------------
>
>                 Key: SPARK-17587
>                 URL: https://issues.apache.org/jira/browse/SPARK-17587
>             Project: Spark
>          Issue Type: Bug
>          Components: ML, MLlib, PySpark
>    Affects Versions: 1.6.2, 2.0.0
>            Reporter: Maciej Szymkiewicz
>            Priority: Minor
>
> According to {{\_\_getitem\_\_}} [contract|https://docs.python.org/3/reference/datamodel.html#object.__getitem__]:
> {quote}
> if of a value outside the set of indexes for the sequence (after any special interpretation of negative values), {{IndexError}} should be raised.
> {quote}
> This required for example for correct iteration over the structure.
> Right now it throws {{ValueError}} what results in a quite confusing behavior when attempt to iterate over a vector results in a {{ValueError}} due to unterminated iteration:
> {code}
> In [1]: from pyspark.mllib.linalg import SparseVector
> In [2]: list(SparseVector(4, [0], [0]))
> ---------------------------------------------------------------------------
> ValueError                                Traceback (most recent call last)
> <ipython-input-2-147f3bb0a47d> in <module>()
> ----> 1 list(SparseVector(4, [0], [0]))
> /opt/spark-2.0/python/pyspark/mllib/linalg/__init__.py in __getitem__(self, index)
>     803 
>     804         if index >= self.size or index < -self.size:
> --> 805             raise ValueError("Index %d out of bounds." % index)
>     806         if index < 0:
>     807             index += self.size
> ValueError: Index 4 out of bounds.
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org