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analogdevicesinc / gr-iio

IIO blocks for GNU Radio
GNU General Public License v3.0
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ImportError: No module named iio_swig #23

Closed drom closed 6 years ago

drom commented 6 years ago

Anybody can help me with this issue? OpenSuSe Tumbleweed

Traceback (most recent call last):
  File "/home/drom/work/github/drom/OFDM/kiss_tx_ofdm.py", line 27, in <module>
    from gnuradio import iio
  File "/usr/lib64/python2.7/site-packages/gnuradio/iio/__init__.py", line 35, in <module>
    from iio_swig import *
ImportError: No module named iio_swig
tfcollins commented 6 years ago

How did you install gnuradio on your system and the gr-iio blocks?

drom commented 6 years ago

I used OpenSuSe package manager zypper to install gnuradio And I compiled gr-iio block like described here: https://wiki.analog.com/resources/tools-software/linux-software/gnuradio?&#compiling_the_gr-iio_blocks_for_your_pc

gr-iio was build from master:

git clone https://github.com/analogdevicesinc/gr-iio.git
cd gr-iio
cmake -DCMAKE_INSTALL_PREFIX=/usr .
make 
sudo make install
cd ..
sudo ldconfig
tfcollins commented 6 years ago

You probably have a path issue then. Is /usr in your PYTHONPATH?

drom commented 6 years ago

Sorry. I found an issue. I was missing python-devel package. sudo zypper in python-devel -- fixed it. @tfcollins thank you for the help.

jmagine commented 6 years ago

I am currently running into a similar issue using a Raspberry Pi and PlutoSDR setup. I compiled the gr-iio blocks the same way as drom and got same error message when using PlutoSDR Source/Sink blocks in gnuradio. I think my paths are set up correctly, but I am pretty new to some aspects of this so cannot be sure. PYTHONPATH=/usr LD_LIBRARY_PATH=/usr/local/lib

tfcollins commented 6 years ago

@ThisChessPlayer are the generated SWIG python blocks included in your PYTHONPATH?

jmagine commented 6 years ago

I have also tried with combinations of PYTHONPATH=/usr/lib/python2.7/dist-packages/, /usr/lib/python2.7/site-packages, and /usr/lib, but it does not make a difference. Another thing I have tried is LD_LIBRARY_PATH=/usr/lib.

If I go into iio_swig.py and remove the try/except around the import, I get a more detailed import error: /usr/lib/libgnuradio-iio.so.0: undefined symbol: ZN2gr6blocks14transcendental4makeERKSsS3

This is the current file structure I have, which appears to match what I have on my Ubuntu 16.04 setup which is working:

/usr/lib/python2.7/dist-packages/gnuradio/iio iio_pluto_sink_swig.py/pyc/pyo _iio_pluto_sink_swig.so iio_pluto_source_swig.py/py/pyo _iio_pluto_source_swig.so iio_swig.py/pyc/pyo _iio.swig.so init.py/pyc/pyo

/usr/lib/python2.7/site-packages/ iio.py iio.pyc libiio-0.15-py2.7.egg-info

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

tfcollins commented 6 years ago

Can you provide your install_manifest.txt file from the build directory?

jmagine commented 6 years ago

I decided to go with Ubuntu Mate image for the Raspberry Pi, and everything worked smooth as butter. For reference though, the install_manifest.txt file contained the following: /usr/lib/pkgconfig/gnuradio-iio.pc /usr/lib/cmake/iio/iioConfig.cmake /usr/include/gnuradio/iio/api.h /usr/include/gnuradio/iio/device_source.h /usr/include/gnuradio/iio/device_sink.h /usr/include/gnuradio/iio/fmcomms2_source.h /usr/include/gnuradio/iio/fmcomms2_sink.h /usr/include/gnuradio/iio/fmcomms5_source.h /usr/include/gnuradio/iio/fmcomms5_sink.h /usr/include/gnuradio/iio/pluto_source.h /usr/include/gnuradio/iio/pluto_sink.h /usr/include/gnuradio/iio/converter_ss.h /usr/include/gnuradio/iio/math.h /usr/include/gnuradio/iio/power_ff.h /usr/include/gnuradio/iio/modulo_ff.h /usr/include/gnuradio/iio/modulo_const_ff.h /usr/lib/libgnuradio-iio.so.0.3 /usr/lib/libgnuradio-iio.so.0 /usr/lib/libgnuradio-iio.so /usr/lib/python2.7/dist-packages/gnuradio/iio/_iio_swig.so /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_swig.py /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_swig.pyc /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_swig.pyo /usr/lib/python2.7/dist-packages/gnuradio/iio/_iio_pluto_source_swig.so /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_pluto_source_swig.py /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_pluto_source_swig.pyc /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_pluto_source_swig.pyo /usr/lib/python2.7/dist-packages/gnuradio/iio/_iio_pluto_sink_swig.so /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_pluto_sink_swig.py /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_pluto_sink_swig.pyc /usr/lib/python2.7/dist-packages/gnuradio/iio/iio_pluto_sink_swig.pyo /usr/include/swig/iio_swig.i /usr/include/swig/iio_pluto_source_swig.i /usr/include/swig/iio_pluto_sink_swig.i /usr/lib/python2.7/dist-packages/gnuradio/iio/init.py /usr/lib/python2.7/dist-packages/gnuradio/iio/init.pyc /usr/lib/python2.7/dist-packages/gnuradio/iio/init.pyo /usr/share/gnuradio/grc/blocks/iio_device_source.xml /usr/share/gnuradio/grc/blocks/iio_device_sink.xml /usr/share/gnuradio/grc/blocks/iio_fmcomms2_source.xml /usr/share/gnuradio/grc/blocks/iio_fmcomms2_sink.xml /usr/share/gnuradio/grc/blocks/iio_fmcomms5_source.xml /usr/share/gnuradio/grc/blocks/iio_fmcomms5_sink.xml /usr/share/gnuradio/grc/blocks/iio_pluto_source.xml /usr/share/gnuradio/grc/blocks/iio_pluto_sink.xml /usr/share/gnuradio/grc/blocks/iio_math.xml /usr/share/gnuradio/grc/blocks/iio_math_gen.xml /usr/share/gnuradio/grc/blocks/iio_power_ff.xml /usr/share/gnuradio/grc/blocks/iio_modulo_ff.xml /usr/share/gnuradio/grc/blocks/iio_modulo_const_ff.xml

Please do let me know if I set up the paths wrong, I would greatly appreciate any pointers for future reference.

tfcollins commented 6 years ago

Sometimes you have to explicitly add /usr/lib/python2.7/dist-packages/gnuradio/iio to your PYTHONPATH.

jmagine commented 6 years ago

I ended up trying this to see what would happen, so PYTHONPATH=/usr/lib/python2.7/dist-packages/:/usr/lib/python2.7/dist-packages/gnuradio/iio, made sure with echo $PYTHONPATH, ran gnuradio-companion, and ran into same error. It could have just been me running it off of Raspbian, which I suspect is not officially supported. I should have been more specific about that! Anyways, thanks for your support. I have it running well with Ubuntu Mate :)

tfcollins commented 6 years ago

I spun up my Pi. Its seem like the repo installs of GR for the Pi get put in a weird place. Other OOT's I tried failed to load as well in the default path. I had to manually copy the python files over into the nonlocal folder like:

cp -r /usr/local/lib/python2.7/dist-packages/gnuradio/iio /usr/lib/python2.7/dist-packages/gnuradio/

That worked for me.

nepoch046 commented 5 years ago

I decide this problem by coping new image of rootfs, without gr-iio, and try install. Because if you installed any time gr-iio with problem, you won't install success

trxstudio commented 4 years ago

Adding

add_definitions(-DBOOST_CHRONO_HEADER_ONLY)

to the CMakeLists.txt file in upgrade-3.8 branch of gr-iio allows me to import iio from python without error.

https://www.mail-archive.com/discuss-gnuradio@gnu.org/msg70829.html