Shell script to upgrade a Python 2 project to Python 3.

pyupgrade.sh

#!/bin/sh
# Shell script to upgrade a Python 2 project to Python 3.
# If it's a TensorFlow project consider running afterwards:
# tf_upgrade_v2 --intree . --outtree . --reportfile tf2_report.txt

# [ -x "$(command -v some_binary)" ] checks whether some_binary is
# in path and executable. See https://stackoverflow.com/a/26759734.


if [ -x "$(command -v 2to3)" ]; then
  2to3 -w -n .
fi

# pip install black
if [ -x "$(command -v black)" ]; then
  black **/*.py
fi

# pip install pyupgrade
if [ -x "$(command -v pyupgrade)" ]; then
  pyupgrade --py39-plus **/*.py
fi