Gr_filter_design issue

GNU Radio
1

Hi,

I just noticed that “gr_filter_design” is throwing numpy error and fails
to
start (with latest gnuradio-git). I could atleast find one more guy
complaining about this (

).

The issue in my case was with

from PyQt4.Qwt5.anynumpy import * (line no 25 in polezero_plot.py).

Code works fine if I replace the above line with

from numpy import zeros
from numpy import float as Float

Anyone else facing the same issue or is this only with my Qt4 package?
(just launch “filter-design” tool from GRC and try playing with
pole-zero
plot)

Thanks
Sreeraj Rajendran

2

I have same error… I’m using macports GNUradio on OSX 10.10

have’nt tried the ‘from numpy import zeros’ fix

sounds brutal !

3

On Sun, Oct 26, 2014 at 5:10 AM, sreeraj r [email protected] wrote:

from PyQt4.Qwt5.anynumpy import * (line no 25 in polezero_plot.py).
Thanks
Sreeraj Rajendran

What versions of: QT, QWT, and numpy are you using?

Tom

4

qt4 4.8.6, python2-pyqt4 4.11.2, qwt 6.1.0 and python2-numpy 1.9.0 on
Archlinux.

5

On Mon, Oct 27, 2014 at 2:10 PM, sreeraj r [email protected] wrote:

I just noticed that “gr_filter_design” is throwing numpy error and fails

What versions of: QT, QWT, and numpy are you using?

Tom

Perhaps it’s a change in numpy with version 1.9.0. I can’t look into
this
and test it right now, but can you open an Issue on gnuradio.org with
the
bug, version information, and your patch to remind us to get to this?
I’d
like to just check to make sure your patch is backwards compatible to
older
versions of what we support here.

Thanks,
Tom