Hanno Schlichting wrote:
> On Wed, Dec 30, 2009 at 6:38 PM, Martijn Faassen<[email protected]>
> wrote:
>> zope.testing.doctestunit emits a deprecation warning. It also defines a
>> function pprint. How does one use pprint without getting a deprecation
>> warning? It seems impossible now, and an equivalent pprint doesn't
>> appear to be in the standard library doctest..
>
> When I recently converted some tests, I replaced that pprint function
> with the one from the standard library:
>
> from pprint import pprint
>
> There weren't any differences in the output, as far as I could tell.
Not sure if this is related, but one thing I found which bit me recently
is that prior to Python 2.5, pprint did not sort dict keys in the
output. That means that a test like this:
>>> pprint(foo)
{'omega': 1, 'alpha': 2}
will pass on 2.4 and fail on 2.5/2.6; to fix it for 2.5/2.6 you do:
>>> pprint(foo)
{'alpha': 2, 'omega': 1}
but now it fails on 2.4. The only way I could find it make it work
reliably was to not rely on dicts at all, but do:
>>> pprint(sorted(foo.items())
[('alpha', 2), ('omega', 1)]
Which works the same on both. I don't know if the zope.doctest pprint
function was meant to fix this, but maybe it did?
Martin
--
Author of `Professional Plone Development`, a book for developers who
want to work with Plone. See http://martinaspeli.net/plone-book
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