|
| From: | Nemanja Savic |
| Subject: | Re: [Discuss-gnuradio] Problem loading Python block |
| Date: | Mon, 28 Jan 2013 16:42:04 +0100 |
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)
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 = "" 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 ()
I installed new version of gr_modtool script and it won't work. The error is following:Any suggestions how to ovecome this except using older version which worked perfectly?
address@hidden 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'...File "/usr/local/bin/gr_modtool.py", line 3369, in <module>
Traceback (most recent call last):
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 |
--On Fri, Jan 25, 2013 at 9:22 PM, Nemanja Savic <address@hidden> wrote:
NemanjaNice weekendMy 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.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.
Nemanja SavićOn Fri, Jan 25, 2013 at 5:18 PM, Martin Braun (CEL) <address@hidden> 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
> address@hidden
> 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
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--
Nemanja Savić
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