Message 100551 - Python tracker

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Author	Daniel.Eloff
Recipients	Daniel.Eloff
Date	2010-03-06.23:31:34
SpamBayes Score	0.0017243612
Marked as misclassified	No
Message-id	<1267918296.69.0.231519686618.issue8082@psf.upfronthosting.co.za>
In-reply-to

Content
>>> class Foo(object): ... pass ... >>> raise Foo() Traceback (most recent call last): File "<input>", line 1, in <module> TypeError: exceptions must be classes or instances, not Foo >>> class Foo(Exception): ... pass ... >>> raise Foo() Traceback (most recent call last): File "<input>", line 1, in <module> Foo >>> class Foo(BaseException): ... pass ... >>> raise Foo() Traceback (most recent call last): File "<input>", line 1, in <module> Foo It seems exceptions can only be subclasses of BaseException, the error message is confusing and false.

>>> class Foo(object):
...     pass
...     
>>> raise Foo()
Traceback (most recent call last):
  File "<input>", line 1, in <module>
TypeError: exceptions must be classes or instances, not Foo
>>> class Foo(Exception):
...     pass
...     
>>> raise Foo()
Traceback (most recent call last):
  File "<input>", line 1, in <module>
Foo
>>> class Foo(BaseException):
...     pass
...     
>>> raise Foo()
Traceback (most recent call last):
  File "<input>", line 1, in <module>
Foo

It seems exceptions can only be subclasses of BaseException, the error message is confusing and false.

History
Date	User	Action	Args
2010-03-06 23:31:36	Daniel.Eloff	set	recipients: + Daniel.Eloff
2010-03-06 23:31:36	Daniel.Eloff	set	messageid: <1267918296.69.0.231519686618.issue8082@psf.upfronthosting.co.za>
2010-03-06 23:31:35	Daniel.Eloff	link	issue8082 messages
2010-03-06 23:31:35	Daniel.Eloff	create