bug? pkgutil.walk_packages returns packages that result in an ImportError
__peter__ at web.de
Thu Aug 26 15:29:33 CEST 2010
Chris Withers wrote:
> From the docs of pkgutils.walk_packages:
> 'onerror' is a function which gets called with one argument (the
> name of the package which was being imported) if any exception
> occurs while trying to import a package. If no onerror function is
> supplied, ImportErrors are caught and ignored, while all other
> exceptions are propagated, terminating the search.
> My expectation of this is that if onerrors is left as None, names
> yielded will be importable.
I would infer no such promise, especially as the generator also yields
modules, and no attempt at all is made to import those.
> However, because the yield is before the import check, you can get
> packages returned that are not importable.
> This feels at odds with the docs above and I think is a bug.
> If the yield were dropped to befoer the import check, we wouldn't have
> this problem.
> what do others think?
I've never worked with that function; I'd like to hear more about your
More information about the Python-list