Forum: GNU Radio Fwd: Problem loading Python block

> I'm not sure what you mean by "load gr.basic_block." Do you mean inherit
> from?


I want to make my block which very similar to packet deframer. Here is 
th
code:

class packet_tst(gr.hier_block2):
>             access_code = packet_utils.default_access_code
>
>         self.framer_sink = gr.framer_sink_1(msgq)
>         self.connect(self, self.correlator, self.framer_sink)
>
>         self.hlp_blk = helper_block(msgq)
>

in the same file is also defined class helper_block in this way:

class helper_block(gr.basic_block):
>         while True:
>             try: msg = self._msgq.delete_head()
>             except: return -1
>             print "Message received"
>

when I try to run test or flowgraph, I get this error:

 in <module>
>     class helper_block(gr.basic_block):
>
> AttributeError: 'module' object has no attribute 'basic_block'
> -- Process completed
> ***Failed
>
> 0% tests passed, 1 tests failed out of 1
>

And in tutorial on how to write signal processing block, it is stated to
use gr.basic_block.


On Tue, Jan 29, 2013 at 1:25 PM, Tom Rondeau <tom@trondeau.com> wrote:

>>
>
>>> /dev/null.
>>>     parser = OptionParser(usage=Templates['usage'],
>>>> was using script downloaded from github this morning (just to clarifu how
>>>>
>>>>>
>>>>> >     from gnuradio import gr
>>>>> =
>>>>> >             self.connect(self.gr_message_source_0, self)
>>>>> >
>>>>> >             self.src_data = ()
>>>>> >
>>>>> >
>>>>> wrote:
>>>>> complaints to /dev
>>>>> >
>>>>> >       File "/usr/local/bin/gr_modtool.py", line 1324, in _write_tpl
>>>>> >         self._compile(source, file,
>>>>> >
>>>>> >     Line|Python Code
>>>>> >     125 |        if _v is not None: write(_filter(_v,
>>>>> >
>>>>> >     43  |#end if
>>>>> >     On Fri, Jan 25, 2013 at 9:22 PM, Nemanja Savic <
>>>>> explain to
>>>>> >
>>>>> lags a bit
>>>>> >             >
>>>>> so inside
>>>>> >             > sent by framer from the main block.
>>>>> >             >     tb = top_block()
>>>>> >             __init__.py file:
>>>>> >             >     import test
>>>>> >             >
>>>>> >             > Thanks
>>>>> >             >
>>>>> >             Kaiserstraße 12
>>>>> >             _______________________________________________
>>>>> >         Nemanja Savić
>>>>> > --
>>>>> Karlsruhe Institute of Technology (KIT)
>>>>> Fax: +49 721 608-46071
>>>>>
>>>
>>
>>
>


--
Nemanja Savić