from __future__ import print_function
if "PYTHONHUNTER" in os.environ:
    try:
        from hunter import *
        eval("trace({[PYTHONHUNTER]})".format(os.environ))
    except Exception as exc:
        sys.stderr.write("Failed to load hunter from PYTHONHUNTER environ variable {[PYTHONHUNTER]!r}: {!r}\n".format(os.environ, exc))