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[3.13] Update to 3.13 the output of exceptions raised (GH-123888) (#124055)
Update to 3.13 the output of exceptions raised (GH-123888)
(cherry picked from commit 39612103dd)
Co-authored-by: Rafael Fontenelle <rffontenelle@users.noreply.github.com>
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Miss Islington (bot)
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@ -45,14 +45,20 @@ programs, however, and result in error messages as shown here::
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>>> 10 * (1/0)
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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10 * (1/0)
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~^~
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ZeroDivisionError: division by zero
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>>> 4 + spam*3
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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4 + spam*3
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^^^^
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NameError: name 'spam' is not defined
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>>> '2' + 2
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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'2' + 2
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~~~~^~~
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TypeError: can only concatenate str (not "int") to str
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The last line of the error message indicates what happened. Exceptions come in
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@ -252,6 +258,7 @@ exception to occur. For example::
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>>> raise NameError('HiThere')
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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raise NameError('HiThere')
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NameError: HiThere
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The sole argument to :keyword:`raise` indicates the exception to be raised.
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@ -275,6 +282,7 @@ re-raise the exception::
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An exception flew by!
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Traceback (most recent call last):
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File "<stdin>", line 2, in <module>
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raise NameError('HiThere')
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NameError: HiThere
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@ -294,12 +302,15 @@ message::
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...
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Traceback (most recent call last):
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File "<stdin>", line 2, in <module>
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open("database.sqlite")
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~~~~^^^^^^^^^^^^^^^^^^^
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FileNotFoundError: [Errno 2] No such file or directory: 'database.sqlite'
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<BLANKLINE>
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During handling of the above exception, another exception occurred:
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<BLANKLINE>
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Traceback (most recent call last):
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File "<stdin>", line 4, in <module>
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raise RuntimeError("unable to handle error")
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RuntimeError: unable to handle error
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To indicate that an exception is a direct consequence of another, the
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@ -320,6 +331,8 @@ This can be useful when you are transforming exceptions. For example::
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...
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Traceback (most recent call last):
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File "<stdin>", line 2, in <module>
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func()
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~~~~^^
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File "<stdin>", line 2, in func
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ConnectionError
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<BLANKLINE>
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@ -327,6 +340,7 @@ This can be useful when you are transforming exceptions. For example::
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<BLANKLINE>
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Traceback (most recent call last):
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File "<stdin>", line 4, in <module>
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raise RuntimeError('Failed to open database') from exc
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RuntimeError: Failed to open database
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It also allows disabling automatic exception chaining using the ``from None``
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@ -339,6 +353,7 @@ idiom::
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...
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Traceback (most recent call last):
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File "<stdin>", line 4, in <module>
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raise RuntimeError from None
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RuntimeError
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For more information about chaining mechanics, see :ref:`bltin-exceptions`.
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@ -381,6 +396,7 @@ example::
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Goodbye, world!
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Traceback (most recent call last):
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File "<stdin>", line 2, in <module>
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raise KeyboardInterrupt
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KeyboardInterrupt
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If a :keyword:`finally` clause is present, the :keyword:`!finally`
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@ -448,7 +464,11 @@ A more complicated example::
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executing finally clause
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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divide("2", "0")
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~~~~~~^^^^^^^^^^
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File "<stdin>", line 3, in divide
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result = x / y
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~~^~~
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TypeError: unsupported operand type(s) for /: 'str' and 'str'
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As you can see, the :keyword:`finally` clause is executed in any event. The
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@ -511,8 +531,11 @@ caught like any other exception. ::
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>>> f()
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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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| f()
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| ~^^
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| File "<stdin>", line 3, in f
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| ExceptionGroup: there were problems
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| raise ExceptionGroup('there were problems', excs)
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| ExceptionGroup: there were problems (2 sub-exceptions)
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+-+---------------- 1 ----------------
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| OSError: error 1
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+---------------- 2 ----------------
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@ -560,10 +583,15 @@ other clauses and eventually to be reraised. ::
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There were SystemErrors
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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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| f()
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| ~^^
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| File "<stdin>", line 2, in f
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| ExceptionGroup: group1
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| raise ExceptionGroup(
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| ...<12 lines>...
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| )
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| ExceptionGroup: group1 (1 sub-exception)
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+-+---------------- 1 ----------------
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| ExceptionGroup: group2
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| ExceptionGroup: group2 (1 sub-exception)
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+-+---------------- 1 ----------------
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| RecursionError: 4
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+------------------------------------
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@ -607,6 +635,7 @@ includes all notes, in the order they were added, after the exception. ::
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...
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Traceback (most recent call last):
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File "<stdin>", line 2, in <module>
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raise TypeError('bad type')
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TypeError: bad type
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Add some information
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Add some more information
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@ -630,23 +659,33 @@ exception in the group has a note indicating when this error has occurred. ::
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>>> raise ExceptionGroup('We have some problems', excs)
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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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| raise ExceptionGroup('We have some problems', excs)
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| ExceptionGroup: We have some problems (3 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 <module>
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| f()
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| ~^^
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| File "<stdin>", line 2, in f
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| raise OSError('operation failed')
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| OSError: operation failed
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| Happened in Iteration 1
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+---------------- 2 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 3, in <module>
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| f()
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| ~^^
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| File "<stdin>", line 2, in f
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| raise OSError('operation failed')
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| OSError: operation failed
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| Happened in Iteration 2
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+---------------- 3 ----------------
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| Traceback (most recent call last):
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| File "<stdin>", line 3, in <module>
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| f()
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| ~^^
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| File "<stdin>", line 2, in f
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| raise OSError('operation failed')
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| OSError: operation failed
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| Happened in Iteration 3
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+------------------------------------
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