GnuRadio gr-iio build

Are you able to locate the file by doing the following:

$locate sig_source_f.h

- Srikanth

GNU Radio 3.8 requires a specific branch: https://github.com/analogdevicesinc/gr-iio/tree/upgrade-3.8

-Travis

In GR-3.8 we had to put the gr-iio module in a different place, so sometimes the bindings interfere since they have the same module name (iio). I would remove the bindings iio.py file.

-Travis

Then we get some other errors from gnuradio. Sorry but I'm lost here.

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/iio/iio_swig.py", line 14, in swig_import_helper
    return importlib.import_module(mname)
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 658, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 571, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 922, in create_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
ImportError: libgnuradio-iio.so...: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/iio/__init__.py", line 30, in <module>
    from .iio_swig import *
  File "/usr/local/lib/python3.6/dist-packages/iio/iio_swig.py", line 17, in <module>
    _iio_swig = swig_import_helper()
  File "/usr/local/lib/python3.6/dist-packages/iio/iio_swig.py", line 16, in swig_import_helper
    return importlib.import_module('_iio_swig')
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named '_iio_swig'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/iio/iio_swig.py", line 14, in swig_import_helper
    return importlib.import_module(mname)
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 658, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 571, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 922, in create_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
ImportError: libgnuradio-iio.so...: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "top_block.py", line 33, in <module>
    import iio
  File "/usr/local/lib/python3.6/dist-packages/iio/__init__.py", line 36, in <module>
    from .iio_swig import *
  File "/usr/local/lib/python3.6/dist-packages/iio/iio_swig.py", line 17, in <module>
    _iio_swig = swig_import_helper()
  File "/usr/local/lib/python3.6/dist-packages/iio/iio_swig.py", line 16, in swig_import_helper
    return importlib.import_module('_iio_swig')
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named '_iio_swig'

What files are in the folder "/usr/local/lib/python3.6/dist-packages/iio/"?

Have you tried re-installing gr-iio once the bindings were removed?

-Travis

The folder "/usr/local/lib/python3.6/dist-packages/iio/" contains files installed by gr-iio (apparent when performing the make install)

I did not remove the bindings because I still want to be able to interface with the pluto through python3, I simply renamed the iio.py file to another name.

I tried to reinstall the gr-iio package after that but to no avail.

Where is libgnuradio-iio.so installed? and is this on path?

-Travis

Where is libgnuradio-iio.so installed? and is this on path?

-Travis

/usr/local/lib/libgnuradio-iio.so
/usr/local/lib/libgnuradio-iio.so.0
/usr/local/lib/libgnuradio-iio.so.0.3

Any new ideas Travis?

Alternatively - is there a safe software setup you recommend to install both gnuradio and the iio bindings on the same machine (ubuntu version, python version, gnuradio version, ...) without running into installation issues?

Can you list the files in this folder: "/usr/local/lib/python3.6/dist-packages/iio/"? I just did an install of maint-3.8 and gr-iio imported fine.

radiohead said:

Alternatively - is there a safe software setup you recommend to install both gnuradio and the iio bindings on the same machine (ubuntu version, python version, gnuradio version, ...) without running into installation issues?

The python bindings and gr-iio blocks share the same module name (iio). To use them both the iio bindings cannot be directly on path. So you will need to import them through a subfolder. Otherwise, python just ignores one.

-Travis