Make SMV easy to import and use

[laneb]

Goal

I should be able to do the following

$ pip install smv
$ python
>>> import smv
>>> app = smvApp.createInstance([], None)
>>> app.runModule("foo")

without having to mess around and add things to my class path or sys.path

• [ ] The smv package should handle injecting the fat jar
• [ ] smv should try to add pyspark and py4j to the sys.path if they're not there (can consider https://github.com/minrk/findspark)
• [ ] Suppress Python bytecode cache via sys.dont_write_bytecode instead of via PYTHONDONTWRITEBYTECODE env var

[jacobdr]

That library looks like it could use a facelift but I guess is useful to look at.

One think that would make this ticket easier is if we moved all the arg parsing to python and out of the shell scripts.

Then the smv-blah scripts just become shebanged Python scripts, and importing via import becomes the real first class citizen since it’s used internally. On Nov 7, 2018, 16:30 -0800, Lane Barlow notifications@github.com, wrote:

Goal I should be able to do the following $ pip install smv $ python

import smv app = smvApp.createInstance([], None) app.runModule("foo") without having to mess around and add things to my class path or sys.path

• The smv package should handle injecting the fat jar • smv should try to add pyspark and py4j to the sys.path if they're not there (can consider https://github.com/minrk/findspark)

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[laneb]

Needs a small whiteboard session I think. These are definitely interrelated goal.

[ninjapapa]

@laneb is the target to still use spark-submit or not?

[laneb]

Not necessarily. I think jobs that need to run in yarn cluster mode will still have to be submitted via spark-submit, but we may be able to shift the burden to users.

[laneb]

@jacobdr What's the goal that motivates removing the bash scripts? Just to simplify arg parsing?