I'm creating module multiplier, after that building and install the block named multiplier_ff with these instruction allowed by the site https://wiki.gnuradio.org/index.php/Guided_Tutorial_GNU_Radio_in_Python :
gr_modtool newmod multiplier
cd gr-tutorial
ls
gr_modtool add -t sync -l python

After that, I edited file multiplier.py , qa_multiplier_ff.py and multiplier_multiplier_ff.block.yml
Finally i run python3 qa_multiplier_ff.py; the test is acheived succefully
crm@crm-X570-UD:~/gr-multiplier/python/multiplier$ python3 qa_multiplier_ff.py
DEPRECATED: Using filename with gr_unittest does no longer have any effect.
.

Ran 1 test in 0.001s

OK
After that, build and install projhect with these instructions:
cd gr-multiplier
mkdir build
cd build
cmake ..
make
sudo make install
sudo ldconfig

However when i run gnuradio-companion , there is an error:
<<< Welcome to GNU Radio Companion 3.10.8.0-rc2 >>>

Block paths:
/usr/local/share/gnuradio/grc/blocks

Check: /usr/local/share/gnuradio/grc/blocks/multiplier_multiplier_ff.block.yml
FlowGraph Error: mapping values are not allowed here
in "/usr/local/share/gnuradio/grc/blocks/multiplier_multiplier_ff.block.yml", line 17, column 16

Please help me to solve this problem and make this bloc available in gnuradio

Hello,
I created a block python named«energy_detection_ff» and it is displayed correctly in gnuradio, However when i run and execute code ; it shows an error :

from gnuradio import detection5
File "/usr/local/lib/python3.8/dist-packages/gnuradio/detection5/init.py", line 23, in
from .energy_detection_ff import energy_detection_ff
ModuleNotFoundError: No module named 'gnuradio.detection5.energy_detection_ff'

And the file of init.py is shown as below :

Copyright 2008,2009 Free Software Foundation, Inc.

SPDX-License-Identifier: GPL-3.0-or-later

The presence of this file turns this directory into a Python package

'''
This is the GNU Radio DETECTION5 module. Place your Python package
description here (python/init.py).
'''
import os

import pybind11 generated symbols into the detection5 namespace

try:
# this might fail if the module is python-only
from .detection5_python import *
except ModuleNotFoundError:
pass

import any pure python here

from .energy_detection_ff import energy_detection_ff

Please help me to solve this problem, i asked if i shoud edit the file init.py, I’m so gratefull to help me

Hello,
these instruction :

gr_modtool newmod energy6
ls
gr_modtool add -t decimator -l python

GNU Radio module name identified: recherche
Enter name of block/code (without module name prefix): energy6_ff
Language: Python
Block/code identifier: energy6_ff
Please specify the copyright holder:
Enter valid argument list, including default arguments:
samples, Pfa
Add Python QA code? [Y/n] y
Adding file 'python/recherche/detector_ff.py'...
Adding file 'python/recherche/qa_detector_ff.py'...
Editing python/recherche/CMakeLists.txt...
Adding file 'grc/recherche_detector_ff.block.yml'...
Editing grc/CMakeLists.txt...

After that, I’m editing file ‘energy6_ff.py by adding your code. Also I’m editing’energy6_detector6_ff.block.yml’ as below :
arameters:

• id: samples
  label: SAMPLES
  dtype: float32
  default: 1.024k
  parameters:
  • id: Pfa
    label: PFA
    dtype: float32
    default: 400m
    #- id: ...

label: ...

dtype: ...

Make one 'inputs' list entry per input and one 'outputs' list entry per output.

Keys include:

* label (an identifier for the GUI)

* domain (optional - stream or message. Default is stream)

* dtype (e.g. int, float, complex, byte, short, xxx_vector, ...)

* vlen (optional - data stream vector length. Default is 1)

* optional (optional - set to 1 for optional inputs. Default is 0)

inputs:

• label: in0
  dtype: float32
• label: in1
  dtype: float32

Make one 'outputs' list entry per output. Sub-entries of dictionary:

* label (an identifier for the GUI)

* dtype

* vlen

* optional (set to 1 for optional inputs)

outputs:

• label: out
  dtype: float32

'file_format' specifies the version of the GRC yml format used in the file

and should usually not be changed.

file_format: 1

After that, I build and install project :

mkdir build
cd build
cmake ..
make
sudo make install
sudo ldconfig
Finally, I run gnuradio-comapnion and the windows shows :

However, this block is disabled i'm not able to connect it with other blocks, I'm so gratefull if you can help me to solve this problem, I ask if if i should edit other files such as: qa_detector6_ff.py and init.py

Best Regards

Hello,
I created a block python named«energy_detection_ff» and it is displayed correctly in gnuradio, However when i run and execute code ; it shows an error :
from gnuradio import detection5
File "/usr/local/lib/python3.8/dist-packages/gnuradio/detection5/init.py", line 23, in
from .energy_detection_ff import energy_detection_ff
ModuleNotFoundError: No module named 'gnuradio.detection5.energy_detection_ff'

And the file of init.py is shown as below :

Please help me to solve this problem, i asked if i shoud edit the file init.py, I’m so gratefull to help me