[ https://issues.apache.org/jira/browse/ARROW-2128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney resolved ARROW-2128. --------------------------------- Resolution: Fixed Issue resolved by pull request 1587 [https://github.com/apache/arrow/pull/1587] > [Python] Cannot serialize array of empty lists > ---------------------------------------------- > > Key: ARROW-2128 > URL: https://issues.apache.org/jira/browse/ARROW-2128 > Project: Apache Arrow > Issue Type: Bug > Components: Python > Affects Versions: 0.8.0 > Reporter: Uwe L. Korn > Priority: Major > Labels: pull-request-available > Fix For: 0.9.0 > > > This currently failing: > {code:java} > data = pd.Series([[], [], []]) > arr = pa.array(data) > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > _ > array.pxi:181: in pyarrow.lib.array > ??? > array.pxi:26: in pyarrow.lib._sequence_to_array > ??? > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > _ > > ??? > E pyarrow.lib.ArrowTypeError: Unable to determine data type > {code} > The code in {{SeqVisitor::GetType}}Â suggests that we don't want to support > thus but I would have expected that the above should result in {{List<Null>}}. -- This message was sent by Atlassian JIRA (v7.6.3#76005)