GitHub user khalidhuseynov opened a pull request:
https://github.com/apache/zeppelin/pull/3073
[zeppelin-3625] [branch-0.8] Pandasql interpreter fails to query over
python dataframe
### What is this PR for?
fix pandasql query over dataframe for `branch-0.8`. the reason in this
branch seems to be different from `master`. first of all there's NPE with
python context being used from pandas without being initialised. after fixing
it there's another problem with `_displayhook`.
### What type of PR is it?
[Bug Fix]
### Todos
* [x] - fix npe
* [x] - fix `_displayhook`
* [ ] - test
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-3625
### How should this be tested?
explained in the issue
### Screenshots (if appropriate)
original NPE different from `master`:
https://user-images.githubusercontent.com/1642088/42735603-f01172a0-8891-11e8-87a5-8b359209b889.png;>
after fixing npe, issue with `_displayhook`:
https://user-images.githubusercontent.com/1642088/42735612-1bc13a34-8892-11e8-9379-af56c46a2ecb.png;>
and interpreter logs show
https://user-images.githubusercontent.com/1642088/42735615-3563e108-8892-11e8-979a-73d9fcf28c0a.png;>
at this point not sure why can't execute `__zeppelin__._displayhook()` in
ipython kernel and not sure what's the purpose of this command on
pandasql->interpret. removing this command resolves issue as below. opinions on
this are appreciated in case there're better options
https://user-images.githubusercontent.com/1642088/42735636-d83db566-8892-11e8-92fc-383957cbcee1.png;>
### Questions:
* Does the licenses files need update?
* Is there breaking changes for older versions?
* Does this needs documentation?
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/khalidhuseynov/zeppelin fix-0.8/ZEPPELIN-3625
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/3073.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3073
commit af11abd1ba5b85ba795005d3cde4caa4fb9b8695
Author: Khalid Huseynov
Date: 2018-07-15T06:14:05Z
fix npe
commit bce568971c48c5efb13b792d8d78483a9d04f08e
Author: Khalid Huseynov
Date: 2018-07-15T06:16:00Z
remove _displayhook from pandasql interpret
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