[Python-Dev] Warnings behave differently in Python 2 and Python 3?

[Christoph Groth]

Thanks, Victor, for the link to the bug fix!  I suspected that the 
original mechanism was something like that, but I believed that it 
was so by design.

I find it a bit surprising that CPython gets changed between 
versions in backwards-incompatible ways (even if it’s a bug fix) 
without a notice in "what's new"...

Christoph