[PyQt] implications of running PyQt 4.4.x with Qt 4.5?

Devon Rueckner devon.rueckner at temboo.com
Wed Apr 22 20:51:23 BST 2009

On Wed, Apr 22, 2009 at 12:50 PM, Phil Thompson
<phil at riverbankcomputing.com> wrote:
> On Wed, 22 Apr 2009 12:40:49 -0400, Devon Rueckner
> <devon.rueckner at temboo.com> wrote:
>> Hi -
>> We would like to upgrade to Qt 4.5 for its bug fixes, performance and
>> license.
>> After simply swapping out Qt and leaving PyQt alone, empirically
>> everything works with the exception of a few graphics view rendering
>> issues.
>> Is running PyQt 4.4.4 with Qt 4.5 considered supported?  What are the
>> implications?
> Generally there is no problem with using a later version of Qt. The
> exception is when that new version introduces new implementations of
> existing virtuals - an older PyQt doesn't know to call them. There are some
> cases of that in Qt v4.5.
> Phil

Just to clarify:

Are you saying that there is no problem as long as we don't use
certain known functions?
Or, in the case of 4.5 there is a problem and we would not be safe
using an older PyQt?

~ Devon

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