Nick Coghlan wrote:
Antoine Pitrou wrote:
This deserves its own PEP IMO, although I'm not sure it would be accepted
(ISTR the idea of a detailed IO exception hierarchy was already refused
in the past).
Not as such - a big exception hierarchy rewrite was rejected, but
nothing specifically limited to the IO exceptions.
Michael's response cut to the heart of the issue though - a richer IO
exception hierarchy can make life interesting for compatibility purposes
(especially when creating "file-like" interfaces to non-file objects).
Some of the error messages are truly awful though as things stand,
especially for someone new to Python. Try to read from a file handle
opened in read mode for example: IOError: [Errno 9] Bad file descriptor
Michael
Cheers,
Nick.
--
http://www.ironpythoninaction.com/
http://www.voidspace.org.uk/blog
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