import sys
from SCons.Script.SConsOptions import SConsOptionParser, SConsBadOptionError

AddOption(
    '--testing',
    help='Test arg',
)

if ARGUMENTS.get('raise', 0) == '1':
    ValidateOptions(throw_exception=True)
elif ARGUMENTS.get('raise', 0) == '2':
    try:
        ValidateOptions(throw_exception=True)
    except SConsBadOptionError as e:
        print("Parser is SConsOptionParser:%s" % (isinstance(e.parser, SConsOptionParser)))
        print("Message is :%s" % e.opt_str)
        Exit(3)
else:
    ValidateOptions()

print("This is in SConstruct")