On Wed, Jun 17, 2015 at 12:49:38PM +0000, David Aldrich wrote:
> Hi
>
> I have a function that compares a set of files with a reference set of
> files. All files are compared and then, if any differences were
> found, an exception is raised:
[...]
> I would like to pass back to the caller a list of the files that
> failed. How would I include that list in the exception object?
Others have already answered your question, but I'm completely with Alan
on this one: don't do this. Have your function return a list of
differences. If there are no differences, return an empty list. The
caller then decides what to do:
diffs = checkfiles()
if diffs:
for fname in diffs:
print("file name %s is different" % fname)
repair_file(fname)
else:
raise NoDifferencesError(
"expected some differences, but didn't find any"
)
--
Steve
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