Version history

This library adheres to Semantic Versioning 2.0.

UNRELEASED

Fixed AttributeError: 'PatchedTracebackException' object has no attribute '__cause__' on Python 3.10 (only) when a traceback is printed from an exception where an exception group is set as the cause (#33)
Fixed a loop in exception groups being rendered incorrectly (#35)
Fixed the patched formatting functions (format_exception()etc.) not passing the compact=True flag on Python 3.10 like the original functions do

1.0.0rc9

Added custom versions of several traceback functions that work with exception groups even if monkey patching was disabled or blocked

1.0.0rc8

Don't monkey patch anything if sys.excepthook has been altered
Fixed formatting of SyntaxError in the monkey patched TracebackException.format_exception_only() method

1.0.0rc7

BACKWARDS INCOMPATIBLE Changed catch() to not wrap an exception in an exception group if only one exception arrived at catch() and it was not matched with any handlers. This was to match the behavior of except*.

1.0.0rc6

BACKWARDS INCOMPATIBLE Changed catch() to match the behavior of except*: each handler will be called only once per key in the handlers dictionary, and with an exception group as the argument. Handlers now also catch subclasses of the given exception types, just like except*.

1.0.0rc5

Patch for traceback.TracebackException.format_exception_only() (PR by Zac Hatfield-Dodds)

1.0.0rc4

Update PEP 678 support to use .add_note() and __notes__ (PR by Zac Hatfield-Dodds)

1.0.0rc3

Added message about the number of sub-exceptions

1.0.0rc2

Display and copy __note__ (draft PEP 678) if available (PR by Zac Hatfield-Dodds)

1.0.0rc1

Initial release