Re: [Discuss-gnuradio] gr_sync_block, AttributeError: No constructor defined

[Josh Blum]

On 02/15/2012 04:22 PM, Jason Bonior wrote:
> I am trying to create a block using gr.gr_sync_block which will select
> a value from an input vector, pass that value to output, and discard
> the rest of the vector:
> 
> !/usr/bin/env python
> 
> from gnuradio import gr
> import numpy
> 
> class vector_parser(gr.gr_sync_block):
>       def __init__(self):
>               gr.gr_sync_block.__init__(

This should be gr.sync_block. gr.gr_sync_block is actually the swigged
representation of the c++ class, and I dont think it should be there. Oh
well...

Also, to get this feature you will need to install my next branch or
python_blocks branch. Sorry, writing blocks in python is not a mainline
feature. I hope someday it will be accepted.

This is my git repo with said branches:
git://gnuradio.org/jblum.git

http://gnuradio.org/redmine/projects/gnuradio/wiki/BlocksCodingGuide#Synchronous-Block

-Josh