Re: [Discuss-gnuradio] No attribute problem with "general" block

[Martin Braun (CEL)]

Hi Feng Lin,

change 'gr.block' to 'gr.basic_block'.
gr.block is the syntax used in the grextras package.

MB

On Mon, Mar 11, 2013 at 03:34:13PM -0500, Feng Lin wrote:
> Hi Martin and all,
> 
> 
> I am trying to use "gr_modtool" to generate signal processing blocks in
> python. 
> 
> In the current case, I am trying to use block type "general" (gr.block) to do 
> a
> covariance matrix calculation.
> 
> 
> Unfortunately, when I was running the program, I got the errors:
> 
> 
> Traceback (most recent call last):
> 
>   File "./covariance_calc.py", line 11, in <module>
> 
>     from samp_cov import samp_cov
> 
>   File "/home/alexzh/gr-modtool/gr-howto/python/samp_cov.py", line 45, in
> <module>
> 
>     class samp_cov(gr.block):
> 
> AttributeError: 'module' object has no attribute 'block'
> 
> 
> I have updated gnuradio version to 3.6.3, and gr_modtool is the latest version
> downloaded from github. 
> 
> The command I used to add a new block was "./gr_modtool.py add -t general -l
> python samp_cov"
> 
> Even when I upgraded gnuradio version to 3.6.4, this issue still existed.
> 
> 
> If I changed to use hier block by "./gr_modtool.py add -t hier -l python
> samp_cov", it works OK.
> 
> However, I do need the general block to work.
> 
> 
> Can anyone help me with this problem? Thanks a lot.
> 
> 
> Best wishes,
> 
> 
> Eric
> 
> 
> 
> 
> 

-- 
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Dipl.-Ing. Martin Braun
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