AW: Struggling with 3.10 OOT Module Porting: AttributeError: module has no attribute

[Bachmaier, Luca]

Hello Vasil,

 

Thank you for your help. Editing python/__init__.py did solve my current problem: After changing the exception handling to the following I was able to move on to other issues while porting.

 

try:

    # this might fail if the module is python-only

    from .myModule_python import *

except ImportError:

    dirname, filename = os.path.split(os.path.abspath(__file__))

    __path__.append(os.path.join(dirname, "bindings"))

    from . myModule _python import *

except ModuleNotFoundError:

    dirname, filename = os.path.split(os.path.abspath(__file__))

    __path__.append(os.path.join(dirname, "bindings"))

    from . myModule_python import *

 

 

Re-installing my module gave me this cmake error:

 

                CMake Error at lib/CMakeLists.txt … Target “gnuradio-myModule” links to: gnuradio::gnuradio-fec but the target was not found.

 

I was able to solve this by removing the gnuradio:: qualifier from gnuradio-fec and gnuradio-analog. For some reason, only gnuradio-fec but not gnuradio::gnuradio-fec is known. Could this be an unintended bug? Under Gnu Radio 3.8.5 gnuradio::gnuradio-fec was able to be found.

 

 

But right now I’m struggling with a new problem that I’m unable to solve:

Calling import myModule_python in gr-myModule/build/python/myModule/bindings/ throws a segmentation fault which gets traced back to /usr/local/lib/python3.10/dist-packages/gnuradio/gr/__init__.py

 

The line responsible for the segfault is:

log.set_level(prefs().get_string("LOG", "log_level", "notset"))

 

Context for the line:

log = gr.logger("log")

log.set_level(prefs().get_string("LOG", "log_level", "notset"))

log_debug = gr.logger("log_debug")

 

Again I would be very thankful if someone could help me.

 

Thank you and regards,

Luca

 

>-----Ursprüngliche Nachricht-----

>Von: Vasil Velichkov <vvvelichkov@gmail.com>

>Gesendet: Freitag, 9. September 2022 15:06

>An: Bachmaier, Luca <luca.bachmaier@iis.fraunhofer.de>; discuss-

>gnuradio@gnu.org

>Betreff: Re: Struggling with 3.10 OOT Module Porting: AttributeError: module

>has no attribute

> 

>Hi Luca,

> 

>On 09/09/2022 10.58, Bachmaier, Luca wrote:

>> Dear all,

>> 

>> I'm currently porting some of my modules from GNU Radio 3.8 to 3.10 and

>experiencing issues with (probably) pybind. My system setup is: Debian 11,

>GNU Radio 3.10.3.0.

>> 

>> My flow graphs that include the 3.8 modules are able to compile, but are not

>able to run due to the following error:

>>                 File "home/user/.grc_gnuradio/myModule_sync.py", line 56 in

>__init__

>>       Self.myModule_myblock_0 = myModule.myblock(0, 0)

>>       AttributeError: module 'myModule' has no attribute 'myblock'

> 

>Open `python/__init__.py`, check if there is `except ImportError:` and replace

>it with `except ModuleNotFoundError:`, then reinstall and try again.

> 

>See also https://github.com/gnuradio/gnuradio/issues/3884

> 

>Regards,

>Vasil