added python_find_library_executable.sh

python_find_library_executable.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+#  vim:ts=4:sts=4:sw=4:et
+#
+#  Author: Hari Sekhon
+#  Date: 2019-09-15 09:59:01 +0100 (Sun, 15 Sep 2019)
+#
+#  https://github.com/harisekhon/bash-tools
+#
+#  License: see accompanying Hari Sekhon LICENSE file
+#
+#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
+#
+#  https://www.linkedin.com/in/harisekhon
+#
+
+# Returns the first argument that is found as an executable in the $PATH, which preference given to local Python library installation
+#
+# Useful for Macs to find where libraries executable scripts like nosetests which may get installed locally in $HOME/Library/Python/2.7/bin to avoid Mac OS X System Integrity Protection
+
+set -euo pipefail
+[ -n "${DEBUG:-}" ] && set -x
+
+for path in ~/Library/Python/*; do
+    bin="$path/bin"
+    [ -d "$bin" ] || continue
+    export PATH="$bin:$PATH"
+done
+
+# prioritise our default python at the beginning of the $PATH
+python_version="$(python -c 'from __future__ import print_function; import sys; print("{}.{}".format(sys.version_info.major, sys.version_info.minor))')"
+bin=~/Library/Python/"$python_version"/bin
+
+if [ -d "$bin" ]; then
+    export PATH="$bin:$PATH"
+fi
+
+command -v "$@" | head -n1