On 2012-10-15 17:22, John Gordon wrote:
In <mailman.2217.1350317845.27098.python-l...@python.org> MRAB
<pyt...@mrabarnett.plus.com> writes:
> Why wasn't the message printed out?
You didn't add a __str__ method:
class PvCamError(Exception):
def __init__(self, msg):
self.msg = msg
def __str__(self):
return self.msg
Wouldn't PvCamError inherit __str__() from Exception?
Yes, but you've put the message in msg, and Exception doesn't have that
attribute.
An alternative approach would be:
class PvCamError(Exception):
pass
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