RE: [Discuss-gnuradio] Problems with How to Write a Signal ProcessingBlock

[Bahn William L Civ USAFA/DFCS]

As a test, I went into the howto_square_ff.cc file and changed it so
that it adds instead of multiplies (so doubles instead of squares). The
make check still passed without problems. If I introduced a syntax
error, then it fails - so I am definitely changing the file being used
in the make process.

This implies that the make check process is not actually invoking the
qa_howto.py program. That being the case, upon what basis does the
article claim that the new block works?


> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden On
> Behalf Of Bahn William L Civ USAFA/DFCS
> Sent: Tuesday, January 30, 2007 4:19 PM
> To: address@hidden
> Subject: [Discuss-gnuradio] Problems with How to Write a Signal
> ProcessingBlock
> 
> I've gone through the How to Write a Signal Processing Block article.
> 
> Everything worked - better than it was supposed to. When I got to the
> first time I was supposed to run "make check" and it was supposed to
> fail, it passed. I'm assuming that this is because the tarball
included
> the howto module which the article assumes hasn't been written yet.
> 
> Fine. So, per the article, "Victory! Our new block works!"
> 
> Or does it?
> 
> If I try to run the top level Python program, qa_howto.py, I get the
> following error message:
> 
> ImportError: No module named howto
> 
> I tracked down the howto.py file (located in the lib directory) and
> copied it to the python site-packages directory.
> 
> Now I get the error message:
> 
> ImportError: No module named _howto
> 
> The only file I can find by that name is _howto.la (again, in the lib
> directory). I copied it over to the site-packages directory, but got
the
> same result.
> 
> What do I need to do (and, more importantly, how am I supposed to know
> that I need to do it) in order to actually run the python program
> (qa_howto.py) that supposedly passed all of the make checks?
> 
> 
> 
> 
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