[Discuss-gnuradio] SIP, PyQt, PyQWT API Conflicts

[Joe]

Hi All-

I'm having issues adding a QT Range block into my flow graph.

Sine Signal -> Low Pass Filter -> QT Sink

with filer bandwidth hard code, the flowgraph runs without an issue, 
but when I replace the bandwidth with a variable that is controlled by a 
QT Range block I receive the following error:

Traceback (most recent call last):
  File "top_block.py", line 17, in <module>
    import PyQt4.Qwt5 as Qwt
  File 
"/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PyQt4/Qwt5/__init__.py", 
line 32, in <module>
    from Qwt import *
RuntimeError: the sip module implements API v10.0 but the PyQt4.Qwt5.Qwt 
module requires API v8.1

Here are the details about my environment:

I'm running gnuradio on a Mac, compiled gnuradio and dependancies from 
source with Homebrew with the following versions:

        gnuradio 3.7 (clone from git branch on 7/6)
        python 2.7.5
        swig 2.0.10
        numpy 1.7.1
        qt 4.8.4
        qwt 6.0.1
        pyqt 4.10.2
        pyqwt 5.2.0

I've searched best I can for a solution to this, but it appears that pyqwt 
is no longer being actively maintained, so it is unclear how the API 
implementations will be updated.  Are others experiencing this issue or 
have developed a workaround to be able to use the QT Range block?

Thanks!
Joe