On Jun 18, 2013, at 4:04 PM, Tom Rondeau <t...@trondeau.com> wrote: > On Tue, Jun 18, 2013 at 3:53 PM, Michael Dickens <m...@alum.mit.edu> wrote: >> Traceback (most recent call last): >> File "/Users/mlk/Desktop/dial_tone.py", line 149, in <module> >> tb = dial_tone() >> File "/Users/mlk/Desktop/dial_tone.py", line 101, in __init__ >> self.top_layout.addWidget(self._qtgui_sink_x_0_win) >> File >> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gnuradio/gr/top_block.py", >> line 94, in __getattr__ >> return getattr(self._tb, name) >> AttributeError: 'gr_top_block_sptr' object has no attribute 'top_layout' > > That means you haven't selected QTGUI in the Options block in GRC.
Ah; yes. I'd forgotten about that setting. Moving the dial_tone.grc sliders over to Qt widgets, and dropping in a Qt FFT plot, and making that setting, I now get: QWidget: Must construct a QApplication before a QPaintDevice So, progress! - MLD _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
