Hi all,
In my first post from today, where I reported error in gr_modtool, I was
using script downloaded from github this morning (just to clarifu how old
scriot I used).
Basically I am trying to make my own packet deframer block, and they are
more or less designed like that. This block was designed just to see how
messages work. In GRC when I connect them in that way it works, but in test
script above it doesn't work.
Basically the problem comes from making similar block like packet deframer,
but I am not able to import gr.block, or gr.basic_block in python (and
gr.hier_block2 works perfectly)
Cheers
On Mon, Jan 28, 2013 at 5:05 PM, Martin Braun (CEL) <martin.br...@kit.edu>wrote:
> - Try the latest gr_modtool from github
> - What you're doing seems weird--why are you connecting message blocks?
> These are meant as a hackish solution to access samples from outside
> the flow graph. Perhaps you want the new PDU to stream blocks?
>
> MB
>
> On Mon, Jan 28, 2013 at 04:42:04PM +0100, Nemanja Savic wrote:
> > Since I don't know why gr_modtool doesn't work for me, I took the older
> working
> > version and made very simple hier block in order to understand messages
> flow in
> > gnuradio.
> >
> > The block code is following:
> >
> >
> > from gnuradio import gr
> >
> > class msg_proba(gr.hier_block2):
> > def __init__(self, ):
> > gr.hier_block2.__init__(self, "msg_proba",
> > gr.io_signature(1, 1, gr.sizeof_char), # Input
> signature
> > gr.io_signature(1, 1, gr.sizeof_char)) # Output
> signature
> >
> > gr_message_sink_0_msgq_out = gr_message_source_0_msgq_in =
> > gr.msg_queue(4)
> >
> > self.gr_message_source_0 =
> gr.message_source(gr.sizeof_char*1,
> > gr_message_source_0_msgq_in)
> > self.gr_message_sink_0 = gr.message_sink(gr.sizeof_char*1,
> > gr_message_sink_0_msgq_out, False)
> >
> > self.connect(self, self.gr_message_sink_0)
> > self.connect(self.gr_message_source_0, self)
> >
> >
> >
> > and the test code is following:
> >
> >
> >
> > from gnuradio import gr, gr_unittest
> > import test
> > import msg_proba
> >
> > class qa_msg_proba (gr_unittest.TestCase):
> >
> > def setUp (self):
> > self.tb = gr.top_block ()
> >
> > def tearDown (self):
> > self.tb = None
> >
> > def test_001_msg_proba (self):
> >
> > self.src_data = ()
> > self.expected_result = ()
> >
> > for i in range(51):
> > self.src_data = self.src_data + (1,)
> > self.expected_result = self.expected_result+(1,)
> >
> > self.src = gr.vector_source_b(self.src_data, False, 1)
> > self.dst = gr.vector_sink_b ()
> >
> > self.msg_pr = msg_proba.msg_proba()
> >
> > self.tb.connect(self.src, self.msg_pr, self.dst)
> >
> > self.tb.run ()
> > # check data
> > result_data = dst.data ()
> > self.assertEqual (expected_result, result_data)
> >
> > if __name__ == '__main__':
> > gr_unittest.main ()
> >
> >
> > When I run test, it doesn't finish. No errors, just stays active without
> giving
> > any results.
> >
> > Can somebody provide some explanation?
> >
> >
> >
> >
> > On Mon, Jan 28, 2013 at 10:28 AM, Nemanja Savic <vlasi...@gmail.com>
> wrote:
> >
> >
> > I installed new version of gr_modtool script and it won't work. The
> error
> > is following:
> >
> > [savi_ne@ts-070046nl gr-test]$ gr_modtool.py add -N rx_tx_message
> -t hier
> > -l python
> > Using Python < 2.7 possibly buggy. Ahem. Please send all complaints
> to /dev
> > /null.
> > Operating in directory .
> > GNU Radio module name identified: test
> > Language: Python
> > Block/code identifier: rx_tx_message
> > Enter valid argument list, including default arguments:
> > Add Python QA code? [Y/n] n
> > Traversing python...
> > Adding file 'rx_tx_message.py'...
> >
> >
> > Traceback (most recent call last):
> >
> > File "/usr/local/bin/gr_modtool.py", line 3369, in <module>
> > main()
> > File "/usr/local/bin/gr_modtool.py", line 3362, in main
> > modtool.run()
> > File "/usr/local/bin/gr_modtool.py", line 1339, in run
> > self._run_python()
> > File "/usr/local/bin/gr_modtool.py", line 1479, in _run_python
> > self._write_tpl('block_python', 'python', fname_py)
> > File "/usr/local/bin/gr_modtool.py", line 1324, in _write_tpl
> > open(os.path.join(path, fname), 'w').write(get_template(tpl,
> > **self._info))
> > File "/usr/local/bin/gr_modtool.py", line 870, in get_template
> > return str(GRMTemplate(Templates[tpl_id], searchList=kwargs))
> > File "/usr/local/bin/gr_modtool.py", line 865, in __init__
> > Cheetah.Template.Template.__init__(self, src,
> searchList=searchList)
> > File "/usr/lib64/python2.6/site-packages/Cheetah/Template.py",
> line 1257,
> > in __init__
> > self._compile(source, file, compilerSettings=compilerSettings)
> > File "/usr/lib64/python2.6/site-packages/Cheetah/Template.py",
> line 1551,
> > in _compile
> > keepRefToGeneratedCode=True)
> > File "/usr/lib64/python2.6/site-packages/Cheetah/Template.py",
> line 795,
> > in compile
> > raise parseError
> > Cheetah.Parser.ParseError:
> >
> > Error in the Python code which Cheetah generated for this template:
> >
> ===========================================================================
> > =====
> >
> > expected an indented block (DynamicallyCompiledCheetahTemplate.py,
> line
> > 122)
> >
> > Line|Python Code
> > ----|-------------------------------------------------------------
> > 120 | deciminterp = ''
> > 121 | else: # generated from line 42, col 1
> > 122 | write(u'''from gnuradio import gr
> > ^
> > 123 |class ''')
> > 124 | _v = VFFSL(SL,"blockname",True) # u'${blockname}' on
> line 46,
> > col 7
> > 125 | if _v is not None: write(_filter(_v,
> rawExpr=u'${blockname}'))
> > # from line 46, col 7.
> >
> >
> ===========================================================================
> > =====
> >
> > Here is the corresponding Cheetah code.
> > ** I had to guess the line & column numbers, so they are probably
> > incorrect:
> >
> > Line 42, column 1
> >
> > Line|Cheetah Code
> > ----|-------------------------------------------------------------
> > 39 |#else if $blocktype == 'decimator'
> > 40 |#set $deciminterp = ', <+decimation+>'
> > 41 |#set $deciminterp = ''
> > 42 |#else
> > ^
> > 43 |#end if
> > 44 |from gnuradio import gr
> > 45 |
> >
> >
> > Any suggestions how to ovecome this except using older version which
> worked
> > perfectly?
> >
> >
> >
> > On Fri, Jan 25, 2013 at 9:22 PM, Nemanja Savic <vlasi...@gmail.com>
> wrote:
> >
> >
> > Thank you Martin, I will try that on Monday.
> >
> > I suppose that I have older version of gr_modtool, cause there
> is no
> > option -l for selecting language.
> >
> > My weekend would be maybe perfect If you or anybody else can
> explain to
> > me why my code won't work, cause I have more or less copied
> block
> > structure from grextras.
> >
> >
> > Nice weekend
> >
> > Nemanja
> >
> >
> >
> > On Fri, Jan 25, 2013 at 5:18 PM, Martin Braun (CEL) <
> > martin.br...@kit.edu> wrote:
> >
> > For a hier block in Python, do
> >
> > $ gr_modtool.py add -t hier -l python
> >
> > You need 3.6.3 to do that.
> >
> > Also, you'll need a new version of modtool (it usually lags
> a bit
> > behind
> > changes in GNU Radio).
> >
> > MB
> >
> >
> >
> > On Fri, Jan 25, 2013 at 05:05:56PM +0100, Nemanja Savic
> wrote:
> > > Hi all,
> > >
> > >
> > > today i was trying to make hierarchical signal processing
> block
> > in Python. I
> > > started with gr_modtool script, and configured it for
> hierpython
> > block type.
> > >
> > >
> > > My idea was to design block similar to packet framer, so
> inside
> > of the new
> > > block, I connected binary slicer and Framer sink. I have
> also
> > declared message
> > > queue.
> > >
> > >
> > > Outside of main block, I designed another block which
> should
> > collect messages
> > > sent by framer from the main block.
> > >
> > >
> > > When I wanted to run this block, I got following error:
> > >
> > >
> > >
> > > Traceback (most recent call last):
> > > File "/home/savi_ne/work/gnuradio/GRC/top_block.py",
> line 439,
> > in <module>
> > > tb = top_block()
> > > File "/home/savi_ne/work/gnuradio/GRC/top_block.py",
> line 183,
> > in __init__
> > > self.test_packet_proba_0 = test.packet_proba()
> > > AttributeError: 'module' object has no attribute
> 'packet_proba'
> > >
> > >
> > >
> > > Next I found that maybe I have to put following line in
> > __init__.py file:
> > >
> > > from packet_proba import *
> > >
> > >
> > > After that I got similar error:
> > >
> > > Traceback (most recent call last):
> > > File "/home/savi_ne/work/gnuradio/GRC/top_block.py",
> line 18,
> > in <module>
> > > import test
> > > File "/usr/local/lib64/python2.6/site-packages/test/
> > __init__.py", line 49, in
> > > <module>
> > > from packet_proba import *
> > > File "/usr/local/lib64/python2.6/site-packages/test/
> > packet_proba.py", line
> > > 51, in <module>
> > > class proba(gr.basic_block):
> > > AttributeError: 'module' object has no attribute
> 'basic_block'
> > >
> > >
> > > I have also tried with gr.block instead of gr.basic_block,
> but
> > with identical
> > > results.
> > >
> > >
> > > Can anybody tell what's missing?
> > >
> > >
> > > Thanks
> > >
> > >
> > > --
> > > Nemanja Savić
> > >
> >
> >
> > > _______________________________________________
> > > Discuss-gnuradio mailing list
> > > Discuss-gnuradio@gnu.org
> > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> >
> >
> > --
> > Karlsruhe Institute of Technology (KIT)
> > Communications Engineering Lab (CEL)
> >
> > Dipl.-Ing. Martin Braun
> > Research Associate
> >
> > Kaiserstraße 12
> > Building 05.01
> > 76131 Karlsruhe
> >
> > Phone: +49 721 608-43790
> > Fax: +49 721 608-46071
> > www.cel.kit.edu
> >
> > KIT -- University of the State of Baden-Württemberg and
> > National Laboratory of the Helmholtz Association
> >
> > _______________________________________________
> > Discuss-gnuradio mailing list
> > Discuss-gnuradio@gnu.org
> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> >
> >
> >
> >
> >
> > --
> >
> > Nemanja Savić
> >
> >
> >
> >
> > --
> > Nemanja Savić
> >
> >
> >
> >
> > --
> > Nemanja Savić
> >
>
> > _______________________________________________
> > Discuss-gnuradio mailing list
> > Discuss-gnuradio@gnu.org
> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
> --
> Karlsruhe Institute of Technology (KIT)
> Communications Engineering Lab (CEL)
>
> Dipl.-Ing. Martin Braun
> Research Associate
>
> Kaiserstraße 12
> Building 05.01
> 76131 Karlsruhe
>
> Phone: +49 721 608-43790
> Fax: +49 721 608-46071
> www.cel.kit.edu
>
> KIT -- University of the State of Baden-Württemberg and
> National Laboratory of the Helmholtz Association
>
> _______________________________________________
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
--
Nemanja Savić
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