A simple project path to PYTHONPATH exporter.

pyth

#!/bin/bash

SCRIPT_PATH="${BASH_SOURCE[0]#./}"

if [[ ! ${0#./} != $SCRIPT_PATH ]]; then
  echo "You cannot run it directly. This file must be sourced *from bash*: source $SCRIPT_PATH PYTHON"
  exit 1
fi

PROJECT_PATH="$(cd "$(dirname "$SCRIPT_PATH")"/.. && pwd)"
if [[ -z $PYTHONPATH ]]; then
  export PYTHONPATH="$PROJECT_PATH"
elif [[ ! $PYTHONPATH =~ (^|:)$PROJECT_PATH(:|$) ]]; then
  export PYTHONPATH="$PYTHONPATH:$PROJECT_PATH"
fi