a zapier python lint command, put it on path!

linty.sh

#!/usr/bin/env bash
CHANGED_PYTHON_FILES=`git diff-tree --diff-filter=ACMRT --no-commit-id --name-only -r origin/develop.. -- "*.py" | tr "\n" " "`
flake8 --exit-zero --format=pylint ${CHANGED_PYTHON_FILES}
pylint --py3k --disable=no-absolute-import --disable=round-builtin -sn --msg-template="{path}:{line}: [{msg_id}] {msg}" ${CHANGED_PYTHON_FILES}