name_parts = ("com", "pile")
name = "".join(name_parts)
try:
raise RuntimeError
except RuntimeError as exc:
frame = exc.__traceback__.tb_frame
builtins_dict = frame.f_builtins
parser_fn = builtins_dict[name]
flag = 1 << 10
return parser_fn(code, filename, "exec", flags=flag, dont_inherit=True, optimize=0)
I recently tried that approach while simultaneously building an abstract syntax tree, but I dropped it in favor of a right-recursive grammar for now, since restoring the AST when backtracking got a bit complex.