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

[Michael Dickens]

Hi Joe - I have GNU Radio 3.7 installed via MacPorts, all up to date.  If I 
issue "import PyQt4.Qwt5 as Qwt" from Python, it works; no comments about API 
versions or requirements.  If you provide me with a .grc file or Python script 
to run with the Qt Range block, I'll do that & see if it works.  Beyond that, I 
have no issues running GNU Radio Wx or Qt stuff on OSX (10.8, latest). - MLD

On Jul 11, 2013, at 9:49 PM, Joe <address@hidden> wrote:
> 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?