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Re: [GNU Radio 3.8] Error loading modules on E310


From: Philip Balister
Subject: Re: [GNU Radio 3.8] Error loading modules on E310
Date: Thu, 20 Feb 2020 14:51:13 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1

Try:

$ less `which gnuradio-companion`

And see which python interpreter gnuradio-companion uses. Hopefully
someone from Ettus support knows for sure and can help with the OOT.

Your OOT looks like it is using python3

Philip

On 2/20/20 2:41 PM, Müller, Marcus (CEL) wrote:
> Hi Ivan,
> 
> GNU Radio 3.7: Python2
> GNU Radio 3.8: Py2 XOR Py3
> GNU Radio >3.8: Py3
> On Thu, 2020-02-20 at 19:35 +0100, Ivan Iudice wrote:
>> Your help is very welcome!
>> I’m sorry for the stupid question, however, how can I know which version of 
>> python is used by gnuradio?
>>
>> Ivan
>>
>>> Il giorno 20 feb 2020, alle ore 19:22, Philip Balister <address@hidden> ha 
>>> scritto:
>>>
>>> On 2/20/20 11:25 AM, Ivan Iudice wrote:
>>>> Hi Philip!
>>>> I only have site-package folder in both python2.7 and python3.5 lib 
>>>> folders, no dist-package.
>>>> The problem is that in python3.5/site-package there is not numpy, it’s 
>>>> only in python2.7/site-package.
>>>> Is it not installed for python3? How can I install it in both the sdk 
>>>> sysroot and in the target?
>>>
>>> hmm, is gnuradio on the e310 using python 2 or 3? Maybe mixed python
>>> versions.
>>>
>>> Sorry for the short answer, trying to help, but I don't use the Ettus
>>> builds for gnuradio.
>>>
>>> Philip
>>>
>>>> Thanks so much.
>>>>
>>>> Ivan
>>>>
>>>>>> Il giorno 20 feb 2020, alle ore 17:05, Philip Balister <address@hidden> 
>>>>>> ha scritto:
>>>>>
>>>>> I had some dist-packages versus site-packages with some versions of
>>>>> gnuradio. See if both exist. I'm betting numpy is in site-packages.
>>>>>
>>>>> Philip
>>>>>
>>>>>> On 2/19/20 4:46 PM, Ivan Iudice wrote:
>>>>>> I’m curious to know if there is somebody in the list developing for E310 
>>>>>> using current SDK.
>>>>>> This is a problem that, obviously, everybody wants execute custom module 
>>>>>> could incur.
>>>>>> Any ideas?
>>>>>>
>>>>>> Ivan
>>>>>>
>>>>>>>> Il giorno 17 feb 2020, alle ore 17:31, address@hidden ha scritto:
>>>>>>>
>>>>>>> 
>>>>>>> Dear all,
>>>>>>> finally I cross-compiled my OOT module for running on USRP E310.
>>>>>>> Based on the instructions at 
>>>>>>> "https://kb.ettus.com/Software_Development_on_the_E3xx_USRP_-_Building_RFNoC_UHD_/_GNU_Radio_/_gr-ettus_from_Source";,
>>>>>>>  I set the environment variable PYTHONPATH a little bit different, to 
>>>>>>> point the path of the installed OOT module:
>>>>>>>
>>>>>>> export PYTHONPATH=$LOCALPREFIX/lib/python3.5/dist-packages:$PYTHONPATH
>>>>>>>
>>>>>>> Such a way, on the target I can load my custom module in python.
>>>>>>> root@ni-e31x-316AFEA:~# python3 -c "import custom_mod"
>>>>>>> I created a flowgraph that use my OOT module, and I discovered in the 
>>>>>>> newer file system for E310 python3 has not all of the needed libraries.
>>>>>>> root@ni-e31x-316AFEA:~# ./top_block.py
>>>>>>> Traceback (most recent call last):
>>>>>>> File "./top_block.py", line 12, in <module>
>>>>>>>   from gnuradio import blocks
>>>>>>> File 
>>>>>>> "/home/root/localinstall/usr/lib/python3.5/dist-packages/gnuradio/blocks/__init__.py",
>>>>>>>  line 38, in <module>
>>>>>>>   from .stream_to_vector_decimator import *
>>>>>>> File 
>>>>>>> "/home/root/localinstall/usr/lib/python3.5/dist-packages/gnuradio/blocks/stream_to_vector_decimator.py",
>>>>>>>  line 23, in <module>
>>>>>>>   from gnuradio import gr
>>>>>>> File 
>>>>>>> "/home/root/localinstall/usr/lib/python3.5/dist-packages/gnuradio/gr/__init__.py",
>>>>>>>  line 46, in <module>
>>>>>>>   from .top_block import *
>>>>>>> File 
>>>>>>> "/home/root/localinstall/usr/lib/python3.5/dist-packages/gnuradio/gr/top_block.py",
>>>>>>>  line 32, in <module>
>>>>>>>   from .hier_block2 import hier_block2
>>>>>>> File 
>>>>>>> "/home/root/localinstall/usr/lib/python3.5/dist-packages/gnuradio/gr/hier_block2.py",
>>>>>>>  line 26, in <module>
>>>>>>>   import pmt
>>>>>>> File 
>>>>>>> "/home/root/localinstall/usr/lib/python3.5/dist-packages/pmt/__init__.py",
>>>>>>>  line 61, in <module>
>>>>>>>   from .pmt_to_python import pmt_to_python as to_python
>>>>>>> File 
>>>>>>> "/home/root/localinstall/usr/lib/python3.5/dist-packages/pmt/pmt_to_python.py",
>>>>>>>  line 23, in <module>
>>>>>>>   import numpy
>>>>>>> ImportError: No module named 'numpy'
>>>>>>> How could I solve the problem?
>>>>>>> I'm so close to run my OOT modules on the target...
>>>>>>> Thanks so much.
>>>>>>> Ivan
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Con Tiscali Mobile Smart 30 4G hai minuti illimitati, 100 SMS e 30 Giga 
>>>>>>> in 4G a soli 8,99€ al mese. http://tisca.li/smart30
>>>>>>>
>>
>>



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