[PEP-654] update traceback formatting in examples (GH-2133)
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Irit Katriel
GitHub
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pep-0654.rst
124
pep-0654.rst
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@ -186,33 +186,29 @@ contains only those exceptions for which the condition is true:
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... )
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>>> traceback.print_exception(eg)
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| ExceptionGroup: one
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| with 3 sub-exceptions:
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+-+---------------- 1 ----------------
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| TypeError: 1
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+---------------- 2 ----------------
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| ExceptionGroup: two
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| with 2 sub-exceptions:
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+-+---------------- 2.1 ----------------
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+-+---------------- 1 ----------------
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| TypeError: 2
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+---------------- 2.2 ----------------
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+---------------- 2 ----------------
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| ValueError: 3
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+------------------------------------
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+---------------- 3 ----------------
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| ExceptionGroup: three
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| with one sub-exception:
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+-+---------------- 3.1 ----------------
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+-+---------------- 1 ----------------
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| OSError: 4
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+------------------------------------
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>>> type_errors = eg.subgroup(lambda e: isinstance(e, TypeError))
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>>> traceback.print_exception(type_errors)
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| ExceptionGroup: one
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| with 2 sub-exceptions:
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+-+---------------- 1 ----------------
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| TypeError: 1
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+---------------- 2 ----------------
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| ExceptionGroup: two
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| with one sub-exception:
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+-+---------------- 2.1 ----------------
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+-+---------------- 1 ----------------
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| TypeError: 2
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+------------------------------------
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>>>
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@ -243,28 +239,23 @@ If both the subgroup and its complement are needed, the
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>>> type_errors, other_errors = eg.split(lambda e: isinstance(e, TypeError))
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>>> traceback.print_exception(type_errors)
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| ExceptionGroup: one
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| with 2 sub-exceptions:
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+-+---------------- 1 ----------------
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| TypeError: 1
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+---------------- 2 ----------------
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| ExceptionGroup: two
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| with one sub-exception:
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+-+---------------- 2.1 ----------------
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+-+---------------- 1 ----------------
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| TypeError: 2
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+------------------------------------
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>>> traceback.print_exception(other_errors)
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| ExceptionGroup: one
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| with 2 sub-exceptions:
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+-+---------------- 1 ----------------
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| ExceptionGroup: two
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| with one sub-exception:
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+-+---------------- 1.1 ----------------
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+-+---------------- 1 ----------------
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| ValueError: 3
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+------------------------------------
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+---------------- 2 ----------------
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| ExceptionGroup: three
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| with one sub-exception:
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+-+---------------- 2.1 ----------------
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+-+---------------- 1 ----------------
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| OSError: 4
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+------------------------------------
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>>>
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@ -392,24 +383,22 @@ in the following example:
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... eg = e
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...
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>>> raise ExceptionGroup("two", [f(2), eg])
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| Traceback (most recent call last):
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| File "<stdin>", line 1, in <module>
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| ExceptionGroup: two
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| with 2 sub-exceptions:
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 3, in f
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| ValueError: 2
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+---------------- 2 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: one
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| with one sub-exception:
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+-+---------------- 2.1 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 3, in f
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| ValueError: 1
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+------------------------------------
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+ Exception Group Traceback (most recent call last):
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| File "<stdin>", line 1, in <module>
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| ExceptionGroup: two
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 3, in f
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| ValueError: 2
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+---------------- 2 ----------------
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: one
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 3, in f
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| ValueError: 1
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+------------------------------------
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>>>
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Handling Exception Groups
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@ -812,36 +801,31 @@ merged with the unhandled ``TypeErrors``.
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*ValueError: ExceptionGroup('eg', [ValueError(1), ExceptionGroup('nested', [ValueError(6)])])
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*OSError: ExceptionGroup('eg', [OSError(3), ExceptionGroup('nested', [OSError(4)])])
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| ExceptionGroup
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| with 2 sub-exceptions:
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 15, in <module>
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: eg
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| with 2 sub-exceptions:
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+-+---------------- 1.1 ----------------
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+-+---------------- 1 ----------------
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| ValueError: 1
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+---------------- 1.2 ----------------
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+---------------- 2 ----------------
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| ExceptionGroup: nested
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| with one sub-exception:
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+-+---------------- 1.2.1 ----------------
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+-+---------------- 1 ----------------
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| ValueError: 6
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+------------------------------------
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+---------------- 2 ----------------
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| Traceback (most recent call last):
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: eg
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| with 3 sub-exceptions:
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+-+---------------- 2.1 ----------------
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+-+---------------- 1 ----------------
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| TypeError: 2
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+---------------- 2.2 ----------------
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+---------------- 2 ----------------
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| OSError: 3
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+---------------- 2.3 ----------------
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+---------------- 3 ----------------
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| ExceptionGroup: nested
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| with 2 sub-exceptions:
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+-+---------------- 2.3.1 ----------------
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+-+---------------- 1 ----------------
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| OSError: 4
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+---------------- 2.3.2 ----------------
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+---------------- 2 ----------------
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| TypeError: 5
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+------------------------------------
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>>>
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@ -863,33 +847,29 @@ it into the new ``ExceptionGroup``.
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... raise ExceptionGroup("two", [KeyError('x'), KeyError('y')])
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...
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| ExceptionGroup
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| with 2 sub-exceptions:
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: one
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| with one sub-exception:
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+-+---------------- 1.context.1 ----------------
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+-+---------------- 1 ----------------
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| ValueError: a
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+------------------------------------
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| During handling of the above exception, another exception occurred:
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| Traceback (most recent call last):
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 4, in <module>
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| ExceptionGroup: two
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| with 2 sub-exceptions:
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+-+---------------- 1.1 ----------------
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+-+---------------- 1 ----------------
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| KeyError: 'x'
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+---------------- 1.2 ----------------
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+---------------- 2 ----------------
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| KeyError: 'y'
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+------------------------------------
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+---------------- 2 ----------------
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| Traceback (most recent call last):
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: one
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| with one sub-exception:
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+-+---------------- 2.1 ----------------
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+-+---------------- 1 ----------------
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| TypeError: b
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+------------------------------------
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>>>
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@ -910,11 +890,9 @@ chaining:
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... raise ValueError('bad value') from e
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...
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| ExceptionGroup
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| with one sub-exception:
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+-+---------------- 1 ----------------
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| ExceptionGroup
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| with one sub-exception:
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+-+---------------- 1.cause.1 ----------------
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| TypeError: bad type
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@ -942,7 +920,6 @@ other clauses from the same ``try`` statement:
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... print('never')
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...
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| ExceptionGroup
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| with one sub-exception:
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 4, in <module>
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@ -965,13 +942,11 @@ direct child of the new exception group created for that:
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... raise KeyError('x')
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...
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| ExceptionGroup
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| with one sub-exception:
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: eg
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| with one sub-exception:
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+-+---------------- 1.context.1 ----------------
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+-+---------------- 1 ----------------
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| ValueError: a
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+------------------------------------
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@ -988,13 +963,11 @@ direct child of the new exception group created for that:
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... raise KeyError('x')
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...
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| ExceptionGroup
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| with 2 sub-exceptions:
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+-+---------------- 1 ----------------
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| Traceback (most recent call last):
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: eg
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| with one sub-exception:
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+-+---------------- 1.context.1 ----------------
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+-+---------------- 1 ----------------
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| ValueError: a
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+------------------------------------
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@ -1004,11 +977,10 @@ direct child of the new exception group created for that:
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| File "<stdin>", line 4, in <module>
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| KeyError: 'x'
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+---------------- 2 ----------------
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| Traceback (most recent call last):
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| Exception Group Traceback (most recent call last):
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| File "<stdin>", line 2, in <module>
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| ExceptionGroup: eg
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| with one sub-exception:
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+-+---------------- 2.1 ----------------
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+-+---------------- 1 ----------------
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| TypeError: b
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+------------------------------------
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>>>
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