Github user rawkintrevo commented on the issue: https://github.com/apache/zeppelin/pull/928 - [x] Fail fasts: changed `call` to [`check_call`](https://docs.python.org/2/library/subprocess.html#check_call) where it is appropriate to fail and exit. - [x] Slang in standard out: Updated strings to use 'interpreter' instead of 'terp'. 'terp' is still short hand in the code; imho anyone who starts monkeying around in there will understand it quickly as the shortening is done very consistenly - [x] Idempotent: `createTerp` function checks if an interpreter with the new name exists, and if it does deletes it.
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