Re: [Discuss-gnuradio] ImportError: No module named _osmosdr_swig

[Fernando]

After a lot of research guided by Michel Dickens, we found out the solution

The symptom:  GRC crashes when placing osmosdr source and osmosdr sink
in a diagram on Opensuse Leap 42.2. Both gnuradio and gr_osmosdr
installed from hamradio repository, but I had tried other repositories
also with same error.


We find the error was generated by

address@hidden:~> python -c 'import osmosdr'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib64/python2.7/site-packages/osmosdr/__init__.py", line
26, in <module>
    from osmosdr_swig import *
  File "/usr/lib64/python2.7/site-packages/osmosdr/osmosdr_swig.py",
line 21, in <module>
    _osmosdr_swig = swig_import_helper()
  File "/usr/lib64/python2.7/site-packages/osmosdr/osmosdr_swig.py",
line 20, in swig_import_helper
    return importlib.import_module('_osmosdr_swig')
  File "/usr/lib64/python2.7/importlib/__init__.py", line 37, in
import_module
    __import__(name)
ImportError: No module named _osmosdr_swig
address@hidden:~>



I replaced file
"/usr/lib64/python2.7/site-packages/osmosdr/osmosdr_swig.py" with the
one attached and got different error:
address@hidden:~> python -c 'import osmosdr'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib64/python2.7/site-packages/osmosdr/__init__.py", line
26, in <module>
    from osmosdr_swig import *
  File "/usr/lib64/python2.7/site-packages/osmosdr/osmosdr_swig.py",
line 14, in <module>
    _osmosdr_swig = swig_import_helper()
  File "/usr/lib64/python2.7/site-packages/osmosdr/osmosdr_swig.py",
line 13, in swig_import_helper
    return importlib.import_module(mname)
  File "/usr/lib64/python2.7/importlib/__init__.py", line 37, in
import_module
    __import__(name)
ImportError: /usr/lib64/libairspy.so.0: undefined symbol:
libusb_handle_events_timeout_completed
address@hidden:~>



So it was a problem generated by libusb. I made a cleanup of libusb 32
bits libraries but problem remained.
Then we found the error was generated by  /usr/local/lib/libusb-1.0.so.0

andromeda:~ # /bin/ls -lAF  /usr/local/lib/libusb-1.0.so.0
lrwxrwxrwx 1 root root 17 Feb  4  2016 /usr/local/lib/libusb-1.0.so.0 ->
libmchpusb-1.0.so*
andromeda:~ # nm -a   /usr/local/lib/libusb-1.0.so.0 | grep timeout
0000000000005500 t arm_timerfd_for_next_timeout
0000000000005260 t get_next_timeout
00000000000054a0 t handle_timeouts
0000000000005380 t handle_timeouts_locked
0000000000005090 T libusb_get_next_timeout
0000000000005e70 T libusb_handle_events_timeout
0000000000004c60 T libusb_pollfds_handle_timeouts
andromeda:~ #



I found that /usr/local/lib/libmchpusb-1.0.so wasn't in the rpm
database, so it seems not to be used by any package, so I tried to
remove the soft link


andromeda:/home/fernando # rm /usr/local/lib/libusb-1.0.so.0
andromeda:/home/fernando # /bin/ls -lAF  /usr/local/lib/libusb-1.0.so.0
/bin/ls: cannot access '/usr/local/lib/libusb-1.0.so.0': No such file or
directory
andromeda:/home/fernando # ldconfig
andromeda:/home/fernando # /bin/ls -lAF  /usr/local/lib/libusb-1.0.so.0
lrwxrwxrwx 1 root root 17 May 16 00:22 /usr/local/lib/libusb-1.0.so.0 ->
libmchpusb-1.0.so*
andromeda:/home/fernando #

I delete the soft link but when running ldconfig it appears again


I found who installed /usr/local/lib/libusb-1.0.so.0 ->libmchpusb-1.0.so*
I was michochip mplabx and it is reported the error with ldconfig
http://www.microchip.com/forums/m729021.aspx
https://groups.google.com/forum/#!msg/linrad/HVjwG36Kl9c/37hTBl1IIX0J

So I deleted ALL microchip software (I had a lot of old microchip
software, with more than one version of the same programs: xc8, xc16,
mplabx, etc.) and we solve the problem.
I installed the new versions of microchip programs and the problem did
not appear again.


thanks Michael.

osmosdr_swig.py
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