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From "Wes McKinney (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ARROW-66) Maybe some missing steps in installation guide
Date Tue, 15 Mar 2016 04:09:33 GMT

    [ https://issues.apache.org/jira/browse/ARROW-66?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15194704#comment-15194704
] 

Wes McKinney commented on ARROW-66:
-----------------------------------

Did you install the Python library after you installed libarrow.so? It sets an rpath based
on the $ARROW_HOME variable. 

In my experience, using RPATH is very difficult across platforms, so we may need to revert
the defaults to use system paths for everything. 

> Maybe some missing steps in installation guide 
> -----------------------------------------------
>
>                 Key: ARROW-66
>                 URL: https://issues.apache.org/jira/browse/ARROW-66
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>         Environment: CentOS 7.0; Python 2.7.x
>            Reporter: Qian Xu
>              Labels: documentation
>
> I followed [the guide|https://github.com/apache/arrow/blob/master/python/doc/INSTALL.md]
to install Arrow project from scratch. I met some issues.
> 1. First of all, I need to build the cpp part. So I setup the thirdparty dependencies.
But when I {{cmake -DCMAKE_INSTALL_PREFIX=$ARROW_HOME ..}}, it shows an error at {{get_filename_component}}
with {{FindGTest.cmake}}. After some digging, I noticed that I have to use *cmake 3* (instead
of cmake 2).
> 2. Now I am able to install {{pyarrow}}. The installation went smooth. But when I import
the module {{pyarrow}}, it says {{ImportError: No module named array}}. I haven't found any
description on this error. 



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