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Re: [Discuss-gnuradio] Readback IO Signature of Hier Block

From: Marcus Müller
Subject: Re: [Discuss-gnuradio] Readback IO Signature of Hier Block
Date: Sat, 02 Aug 2014 18:51:04 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0

Hi John,

I'm a little confused; as far as I know, hier_block2s don't allow you to set a variable range of in/outputs. Thus, initialization via a hier_block2.__init__ call must set definite io_signatures, and you can get them using .input_signature() / .output_signature()
   def __init__(self, in_sig, out_sig):
            in_sig, out_sig)

Now, since that signature is hard-coded, I don't really see the case where the runtime iosigs would differ from these set at initialization, but I'm not sure I'm not missing something.

But that's a little theoretical, so let's talk about something specific; does [1]'s python/qa_iosig_wise.py achieve what you would want to have?



On 02.08.2014 02:05, John Malsbury wrote:
Is there, or will there ever be a method to read back the io_signature of a
heir block in python?  I'd like to do some pythonic stuff to easily wrap
multiple hier blocks in a number of separate flowgraphs without requiring
the developer to specify the io signature of each block.


PS - I'm very sorry for using the word "pythonic".

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