On Mon, Feb 4, 2013 at 11:06 AM, Michael Dickens <[email protected]> wrote:

> Hi Albert - On my end as the maintainer of the gnuradio* ports in
> MacPorts, I'll add a runtime dependency on py*-pyqwt for gr-utils.  It'll
> be a little tricky since I have to get the variants to match up (the
> variant for pyqwt and which version of qwt is installed), but it can be
> done.
>

Thanks!


> Tom - Do you know if the 2 gr-utils which depend on pyqwt
> (gr_filter_design and gr_plot_qt) will work with qwt5 and qwt6?  RIght now
> they try to import PyQwt5, but maybe the import test could be changed to
> try for PyQwt6 first then if that fails PyQwt5?  I've set up the gnuradio*
> ports to not care which version of qwt is installed (5 or 6; via depending
> on "path:lib/libqwt.dylib:qwt" which looks for the library first and if
> that is not found then port reverts the dependency to qwt which is version
> 5.1.2) -- so, requiring qwt version 5 in these scripts seems to counter my
> settings.  Hence, my question. - MLD


So this is a bit tricky right now. PyQwt on supports version 5. They have
stated that they do not plan to support Qwt6 in it's current for. I think
they were talking about doing a full redo of their software. I don't really
know what this means yet for long-term capabilities or stability.

On the other hand, PyQwt5 works in all cases I've tested against Qwt6.
Qwt6, though, is much nicer and has some significant performance benefits.
So if possible, use Qwt6 with PyQwt5.

Tom
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