python-tqt is reporting "underlying C/C++ object has been deleted". This
is rather unhelpful. A little code has been backported from the equivalent
source files in sip 4.19.23 to make it a little clearer about what is
going wrong (original author Riverbank Computing Limited
<info@riverbankcomputing.com>, licensed under GPL version 2 or 3).
Signed-off-by: aneejit1 <aneejit1@gmail.com>
(cherry picked from commit c9762bd162)