Errors

Error classes and error-handling helpers used by the packaging library.

Currently this contains ExceptionGroup, a simple backport of the stdlib ExceptionGroup. It is recommended to use the stdlib module on Python 3.11+, but this does reexport that as well.

Recommended Usage

if sys.version_info < (3, 11):
    from packaging.errors import ExceptionGroup

try:
    ...
except ExceptionGroup as err:
    for error in err.exceptions:
        ...

Reference

class packaging.errors.ExceptionGroup(message: str, exceptions: list[Exception])

On older Pythons, this is a small fallback implementation of the ExceptionGroup introduced in Python 3.11.

Parameters:

• message – The message for the group.

• exceptions – A list of exceptions contained in the group.

Attributes

message (str)

The message passed to the group.

exceptions (list[Exception])

The exceptions contained in the group.