bpo-42482: remove reference to exc_traceback from TracebackException (GH-23531)
diff --git a/Lib/traceback.py b/Lib/traceback.py
index d2d93c8..457d925 100644
--- a/Lib/traceback.py
+++ b/Lib/traceback.py
@@ -510,7 +510,6 @@ def __init__(self, exc_type, exc_value, exc_traceback, *, limit=None,
_seen=_seen)
else:
context = None
- self.exc_traceback = exc_traceback
self.__cause__ = cause
self.__context__ = context
self.__suppress_context__ = \
@@ -627,7 +626,7 @@ def format(self, *, chain=True):
not self.__suppress_context__):
yield from self.__context__.format(chain=chain)
yield _context_message
- if self.exc_traceback is not None:
+ if self.stack:
yield 'Traceback (most recent call last):\n'
- yield from self.stack.format()
+ yield from self.stack.format()
yield from self.format_exception_only()