[Discuss-gnuradio] Create a general block using a GRC 'misc Python block'

[Barry Duggan]

Hi,

I would like to write a source block using a GRC 'misc Python block' 
which reads text from 'input' and generates a vector with a variable 
number of 1's and 0's depending on the text. My problem is determining 
how to address the output vector to store/append the values. Can this 
even be done in Python? My attempts to create a general block using the 
GRC 'misc Python block' have failed because it doesn't recognize the 
"general_work()" method.

So, my questions are:
1) Can I append a value to output_items[0] using numpy? Wouldn't that 
create another array?
2) Can I use a GRC 'misc Python block' at all, or must I create an Out 
Of Tree block?

I haven't found any of the GR tutorials which address this issue.

Any help or direction will be appreciated greatly!
--
Barry Duggan