Ensure python3 executable is available on cluster
#334
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It looks like starting in Spark 3.1 (?) calling
pysparkwill specifically look for apython3executable. Flintrock should ensure this executable is available on the cluster.It's clear that the
FlintrockServiceabstraction needs to be reused to capture things like Java and Python configuration, instead of doing that in a haphazard way. I'll explore that in a future PR (unless a contributor happens to take interest in this issue).