2 > my $python_bin="python";
4 < "python --version 2>&1 |",
6 > "$python_bin --version 2>&1 |",
8 < my $PY_PREFIX = `python pycaml/getprefix.py | tr -d '\n'`;
9 < $PY_VERSION = `python pycaml/getversion.py | tr -d '\n'`;
11 > my $PY_PREFIX = `$python_bin pycaml/getprefix.py | tr -d '\n'`;
12 > $PY_VERSION = `$python_bin pycaml/getversion.py | tr -d '\n'`;
14 > PYTHON_BIN=$python_bin