On 9 Aug 2012, at 19:39, Nathaniel Echols wrote:

I actually think introducing -Qnew was a mistake, because there are
third-party modules [...] which simply break when true division
is forced. [...] I definitely

agree that it would be better if everyone continues to use the
explicit division styles instead of relying on the Python
interpreter's default behavior

I agree with you that using -Qnew has annoying side-effects. However I beg to differ as to the best solution. Imho we should enforce

at the beginning of every single Python module by adding another diagnostic to libtbx.find_clutter.