junkcode/guess-python.sh at master · mrda/junkcode · GitHub

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#!/bin/sh

# guess-python.sh - Work out whether we have python 2 or

# python 3 available to us. If we have both,

# prefer python3, because it is the future :-)

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License as

# published by the Free Software Foundation; either version 2 of the

# License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

# General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA

# 02111-1307, USA.

check_cmd ()

{

hash ${1} &> /dev/null

return $?

}

check_cmd python

CHECK_PY=$?

if [ ${CHECK_PY} -ne 0 ]; then

echo "No python installed"

exit 1

check_cmd python3

CHECK_PY=$?

if [ ${CHECK_PY} -eq 0 ]; then

echo "python3"

exit 0

PY_MAJOR=$(python -c "import sys; print(sys.version_info.major)")

if [ ${PY_MAJOR} -eq 3 ]; then

echo "python3"

exit 0

if [ ${PY_MAJOR} -eq 2 ]; then

echo "python2"

exit 0

junkcode/guess-python.sh at master · mrda/junkcode · GitHub

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