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34 lines
941 B

from typing import Any, Dict
class AlreadyUsedError(RuntimeError):
"""An Outcome can only be unwrapped once."""
pass
def fixup_module_metadata(
module_name: str,
namespace: Dict[str, object],
) -> None:
def fix_one(obj: object) -> None:
mod = getattr(obj, "__module__", None)
if mod is not None and mod.startswith("outcome."):
obj.__module__ = module_name
if isinstance(obj, type):
for attr_value in obj.__dict__.values():
fix_one(attr_value)
all_list = namespace["__all__"]
assert isinstance(all_list, (tuple, list)), repr(all_list)
for objname in all_list:
obj = namespace[objname]
fix_one(obj)
def remove_tb_frames(exc: BaseException, n: int) -> BaseException:
tb = exc.__traceback__
for _ in range(n):
assert tb is not None
tb = tb.tb_next
return exc.with_traceback(tb)