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asottile
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May 12, 2019
| memo = set() | ||
| while True: | ||
| self.groups.append(Group(exc_type, exc_value, tb)) | ||
| memo.add(exc_value) |
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this assumes hashability of exceptions (which isn't always true), I wrote a fix for this: #1542
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closes #1536
The traceback formatter followed
exc_value.__context__infinitely, even if there was a cycle. Add a memo set to track what's been seen already and break when it detects a cycle.