Error in importing / Traceback (most recent calls last)

[t-ctrl]

calling modeslive --help gives the following erors

modeslive --help

/usr/lib/python3/dist-packages/apport/report.py:13: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
import fnmatch, glob, traceback, errno, sys, atexit, locale, imp
Traceback (most recent call last):
File "/usr/local/bin/modeslive", line 12, in
from pyModeS.streamer.source import NetSource,RtlSdrSource
File "/usr/local/lib/python3.6/dist-packages/pyModeS/streamer/source.py", line 3, in
from pyModeS.extra.rtlreader import RtlReader
File "/usr/local/lib/python3.6/dist-packages/pyModeS/extra/rtlreader.py", line 4, in
from rtlsdr import RtlSdr
File "/usr/local/lib/python3.6/dist-packages/rtlsdr/init.py", line 56, in
from .librtlsdr import librtlsdr
File "/usr/local/lib/python3.6/dist-packages/rtlsdr/librtlsdr.py", line 61, in
f = librtlsdr.rtlsdr_get_device_count
File "/usr/lib/python3.6/ctypes/init.py", line 361, in getattr
func = self.getitem(name)
File "/usr/lib/python3.6/ctypes/init.py", line 366, in getitem
func = self._FuncPtr((name_or_ordinal, self))
AttributeError: /usr/bin/python3: undefined symbol: rtlsdr_get_device_count

[junzis]

I suspect this has something to do with the rtl-sdr library on your computer.

Please try to reinstall librtlsdr-dev and librtlsdr0 to see if it solves the problem.

[kastork]

not my ticket, but installing librtlsdr solved this sort of problem for me. (on a mac simply brew install librtlsdr)

I understand the need for this library for accessing the radio directly. Don't know if it is possible, but It would be nice if this dependency wasn't necessary when accessing a dump1090 network stream from another device.

[junzis]

@kastork, good recommendation. This is considered now in the commit 7a4c465.