pyd - give Python development shell with required packages already installed

pyd

#!/bin/bash

[ -e test-requirements.txt ] && {
	echo 'Entering Python environment as defined by test-requirements.txt'
	exec in-virtualenv -r test-requirements.txt /bin/bash "$@"
}

[ -e test_requirements.txt ] && {
	echo 'Entering Python environment as defined by test_requirements.txt'
	exec in-virtualenv -r test_requirements.txt /bin/bash "$@"
}

[ -e requirements.txt ] && {
	echo 'Entering Python environment as defined by requirements.txt'
	exec in-virtualenv /bin/bash "$@"
}

[ -e setup.py ] && {
	echo 'Entering Python environment as defined by setup.py'
	TMPREQ="$(mktemp)"
	echo '-e .' > "$TMPREQ"
	(sleep 2; rm "$TMPREQ") &
	exec in-virtualenv -r "$TMPREQ" --no-cache /bin/bash "$@"
}

echo 'Using default Python'
exec /bin/bash "$@"