From 8ba82a8ea5456f2d9b489aa1d23bba053999f18d Mon Sep 17 00:00:00 2001 From: Anika Mukherji Date: Tue, 22 Oct 2019 15:06:32 -0700 Subject: [PATCH] use object.setattr to bypass check for immutable objects --- src/future/utils/__init__.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/future/utils/__init__.py b/src/future/utils/__init__.py index 59920077..7282a9cf 100644 --- a/src/future/utils/__init__.py +++ b/src/future/utils/__init__.py @@ -473,7 +473,7 @@ def raise_from(exc, cause): e.__suppress_context__ = True elif isinstance(cause, BaseException): e.__cause__ = cause - e.__cause__.__traceback__ = sys.exc_info()[2] + object.__setattr__(e.__cause__, '__traceback__', sys.exc_info()[2]) e.__suppress_context__ = True else: raise TypeError("exception causes must derive from BaseException")