enum_example.py

class TreeContextFlags(object):

    flag_names = ['TCF_%s' % flag for flag in """COMPILING IN_FUNCTION
        RETURN_EXPR RETURN_VOID IN_FOR_INIT FUN_SETS_OUTER_NAME
        FUN_PARAM_ARGUMENTS FUN_USES_ARGUMENTS FUN_HEAVYWEIGHT FUN_IS_GENERATOR
        FUN_USES_OWN_NAME HAS_FUNCTION_STMT GENEXP_LAMBDA COMPILE_N_GO
        NO_SCRIPT_RVAL HAS_SHARPS DECL_DESTRUCTURING NEED_MUTABLE_SCRIPT
        STRICT_MODE_CODE FUN_PARAM_EVAL FUN_UNBRAND_THIS
        FUN_MODULE_PATTERN""".split()]

    for i, name in enumerate(flag_names):
        locals()[name] = 1 << i