Hello Ayaz,
If you are getting 'Template error' messages, you will have to check the XML
file of your block (in grc directory).
Also, 'input' is not a valid variable name in Python, as it is used for other
purposes. You will have to re-name that variable to something else.
Finally, "out[0][:] = self.input" should become "out[:] = self.input" as you
already selected output port and you are not outputting vectors.
Regards,
Kyeong Su Shin
________________________________
보낸 사람: Ayaz Mahmud <ayazmah...@hotmail.com> 대신 Discuss-gnuradio
<discuss-gnuradio-bounces+ksshin=postech.ac...@gnu.org>
보낸 날짜: 2018년 7월 31일 화요일 오전 2:22:35
받는 사람: discuss-gnuradio@gnu.org
제목: [Discuss-gnuradio] OOT sourcec block in python error
Hi,
I am trying to build a source block in python. Below is my code. After using
the block I am getting a syntax error: self.Span_SourceBlock_0 = Template
error: Span.SourceBlock($input)
My block should take input from user(int/float), and output the same. Though
these are available blocks in GnuRadio but I am trying to learn on building it.
Can you please check if my way of writing the code is correct?
import numpy
from gnuradio import gr
class SourceBlock(gr.sync_block):
"""
docstring for block SourceBlock
"""
def __init__(self, input):
self.input = input
gr.sync_block.__init__(self,
name="SourceBlock",
in_sig=None,
out_sig=[numpy.float32])
def work(self, input_items, output_items):
out = output_items[0]
out[0][:] = self.input
return len(output_items[0])
Thanks,
Ayaz
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