# Make sure we're not using python v3.x as 'python', we don't support it.
py_v2_check=$(/usr/bin/env python --version 2>&1 | grep "Python 3")
if [ -n "$py_v2_check" ]; then
    echo >&2 "OpenEmbedded requires 'python' to be python v2 (>= 2.7.3), not python v3."
    echo >&2 "Please set up python v2 as your default 'python' interpreter."
    return 1
fi
unset py_v2_check

py_v27_check=$(python -c 'import sys; print sys.version_info >= (2,7,3)')
if [ "$py_v27_check" != "True" ]; then
    echo >&2 "OpenEmbedded requires 'python' to be python v2 (>= 2.7.3), not python v3."
    echo >&2 "Please upgrade your python v2."
fi
unset py_v27_check

# We potentially have code that doesn't parse correctly with older versions
# of Python, and rather than fixing that and being eternally vigilant for
# any other new feature use, just check the version here.
py_v34_check=$(python3 -c 'import sys; print(sys.version_info >= (3,4,0))')
if [ "$py_v34_check" != "True" ]; then
    echo >&2 "BitBake requires Python 3.4.0 or later as 'python3'"
    return 1
fi
unset py_v34_check