Alex Goodman 4ac577f711 [ZEPPELIN-1639] Add tests with external python dependencies to CI build ... ### What is this PR for? Take 2 of #1618 because I had some earlier problems with rebasing. Since, then I have added some new features, namely: - Matplotlib integration tests for pyspark - `install_external_dependencies.sh` which conditionally installs the R or python dependencies based on the specified build profile in `.travis.yml`. This saves several minutes of time for a few of the build profiles since the R dependencies are compiled from source and therefore take quite a bit of time to install. - The extra python unit tests which require external dependencies (`matplotlib` and `pandas`) are now relegated to two separate build profiles. This is done primarily to efficiently test both Python 2 and 3. - Some minor bugs in the python and pyspark interpreters (mostly with respect to python 3 compatibility) were caught as a result of these tests, and are also fixed in this PR. ### What type of PR is it? Improvement and Bugfix ### What is the Jira issue? [ZEPPELIN-1639](https://issues.apache.org/jira/browse/ZEPPELIN-1639) ### How should this be tested? CI tests should be green! ### Questions: * Does the licenses files need update? No * Is there breaking changes for older versions? No * Does this needs documentation? No Author: Alex Goodman <agoodm@users.noreply.github.com> Closes #1632 from agoodm/ZEPPELIN-1639 and squashes the following commits: 01380c2 [Alex Goodman] Make sure python 3 profile uses scala 2.11 363019e [Alex Goodman] Use spark 2.0 with python 3 a4f43af [Alex Goodman] Update comments in .travis.yml 5a60181 [Alex Goodman] Isolate python tests 73663f6 [Alex Goodman] Update tests for new InterpreterContext constructor 5709c5d [Alex Goodman] Re-add pyspark to build profile ee95d67 [Alex Goodman] Move python 3 tests to all modules with spark 2.0 3a76958 [Alex Goodman] Travis 42da31c [Alex Goodman] Shorten python version b6b88be [Alex Goodman] Add python dependencies to .travis.yml		2016-11-29 17:00:07 +09:00
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backend_zinline.py	[ZEPPELIN-1639] Add tests with external python dependencies to CI build	2016-11-29 17:00:07 +09:00
mpl_config.py	ZEPPELIN-1345 - Create a custom matplotlib backend that natively supports inline plotting in a python interpreter cell	2016-11-08 07:20:21 -08:00