Hey Shane, You can fix this by moving line 129-131:
*self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, samp_rate,True)self.analog_sig_source_x_1 = analog.sig_source_f(samp_rate, analog.GR_SIN_WAVE, freq, ampl, 0)self.analog_sig_source_x_0 = analog.sig_source_f(samp_rate, analog.GR_SQR_WAVE, 0.1, 1, 0)* to line 55. In other words, put them right after: *self.ampl = ampl = 1* You actually only need to move the line with *analog_sig_source_x_1*, but it might be nice to have them all in one place. Best regards, Håkon Vågsether On Wed, Sep 13, 2017 at 10:37 AM, Jacqueline.Walker <jacqueline.wal...@ul.ie > wrote: > Hi Shane, > > I believe this might be the solution. According to James Shimer on this > thread, it's a race condition in the python code - read on down the thread. > Anyway, the solution works, I tried it. > > regards > Jacqueline > ________________________________________ > From: Discuss-gnuradio [discuss-gnuradio-bounces+jacqueline.walker= > ul...@gnu.org] on behalf of Shane Petcavich [spetcav...@hme.com] > Sent: 12 September 2017 23:19:44 > To: discuss-gnuradio@gnu.org > Subject: [Discuss-gnuradio] Problem with tutorial 3 GNU radio in Python > > Hello, > > I'm having an issue with tutorial3 in https://github.com/gnuradio/ > gr-tutorial, which I have cloned and put into a directory called > solutions. I have tried this on xubuntu, 3 different installations of > ubuntu 14.04 [virtual machines], and using the GNURadio Live USB. I have > tried installing GNURadio from the binary, installing from source, and > installing with pybombs. Currently using GNURadio 3.7.12. > > When trying to run the solution if_else_mod.py in: > > examples/tutorial3/python/ > > I get the error ' top_block_sptr' object has no attribute > 'analog_sig_source_x_1' > > This was previously discussed without much solution here: > https://lists.gnu.org/archive/html/discuss-gnuradio/2013-11/msg00243.html > > Any help would be appreciated. > > Thanks, > srp > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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