Which Pi? Philip
On 04/24/2019 03:22 PM, P C wrote: > Nick, Marcus, > > To answer your osmosdr question I used the instructions here: > https://osmocom.org/projects/gr-osmosdr/wiki/GrOsmoSDR > > And I also did: > > sudo apt-get install rtl-sdr gr-osmosdr > > Since then I did some more experimenting and I believe it is a problem > with osmosdr. > I don't know a lot about Raspbian (the RPi OS) or Python but it may be > that I have multiple versions of Python and that is confusing osmosdr. > > Here is what I did, I found in /usr/local/bin, a program, osmosdr_fft > which I believe was installed when I installed gr-osmosdr. > It gives me exactly the same error and Traceback?? that gnuradio gave me. > I know I have Python 3.??? and Python 2.??? but I don't know enough > about where Raspbian squirrels away executables to know how to find all > the Pythons that are installed.?? I used the GUI (startx) search > function that came with the Pi and found 25 folders named Python and 4 > files named Python.?? I sure don't know what to do with that. > > This is why I believe osmosdr is confused.?? I looked at the Traceback > and to my (very limited) understanding it looks like osmosdr is trying > to determine which version of Python is being used.?? The result is it > thinks it needs to run "_osmosdr_swig" > but a search for "_osmosdr_swig" in all folders reports that it can't > find "_osmosdr_swig". > > I am trying to understand the Traceback and the thread through the modules. > At the risk of driving everybody away I have included, below, both the > Traceback and then code snippets from the trace points. > Together it is 2,622 characters and 69 lines if anybody is interested.?? > Don't feel bad if it is TMI.?? I understand. > > Pete > > > Here is what is reported: > Traceback (most recent call last): > ?? File "/home/pi/Documents/Security/top_block.py", line 28, in <module> > ?????? import osmosdr > ?? File "/usr/local/lib/python2.7/dist-packages/osmosdr/__init__.py", > line 26, in <module> > ?????? from osmosdr_swig import * > ?? File > "/usr/local/lib/python2.7/dist-packages/osmosdr/osmosdr_swig.py", line > 21, in <module> > ?????? _osmosdr_swig = swig_import_helper() > ?? File > "/usr/local/lib/python2.7/dist-packages/osmosdr/osmosdr_swig.py", line > 20, in swig_import_helper > ?????? return importlib.import_module('_osmosdr_swig') > ?? File "/usr/lib/python2.7/importlib/__init__.py", line 37, in > import_module > ?????? __import__(name) > ImportError: No module named _osmosdr_swig > > Python code snippets from around the traces are: > > From top_block.py > 25 from gnuradio.eng_option import eng_option > 26 from gnuradio.filter import firdes > 27 from optparse import OptionParser > 28 import osmosdr > 29 import sip > > From /usr/local/lib/python2.7/dist-packages/osmosdr/__init__.py > 25 # import swig generated symbols into the osmosdr namespace > 26 from osmosdr_swig import * > 27 > 28 # import any pure python here > 29 # > >> From /usr/local/lib/python2.7/dist-packages/osmosdr/osmosdr_swig.py > 11 from sys import version_info as _swig_python_version_info > 12 if _swig_python_version_info >= (2, 7, 0): > 13???????? def swig_import_helper(): > 14???????????????? import importlib > 15???????????????? pkg = __name__.rpartition('.')[0] > 16???????????????? mname = '.'.join((pkg, '_osmosdr_swig')).lstrip('.') > 17???????????????? try: > 18???????????????????????? return importlib.import_module(mname) > 19???????????????? except ImportError: > 20???????????????????????? return importlib.import_module('_osmosdr_swig') > 21???????? _osmosdr_swig = swig_import_helper() > 22???????? del swig_import_helper > 23 elif _swig_python_version_info >= (2, 6, 0): > > From /usr/lib/python2.7/importlib/__init__.py > 20 def import_module(name, package=None): > 21???????? """Import a module. > 22 > 23???????? The 'package' argument is required when performing a relative > import. It > 24???????? specifies the package to use as the anchor point from which > to resolve the > 25???????? relative import to an absolute import. > 26 > 27???????? """ > 28???????? if name.startswith('.'): > 29???????????????? if not package: > 30???????????????????????? raise TypeError("relative imports require the > 'package' argument") > 31???????????????? level = 0 > 32???????????????? for character in name: > 33???????????????????????? if character != '.': > 34???????????????????????????????? break > 35???????????????????????? level += 1 > 36???????????????? name = _resolve_name(name[level:], package, level) > 37???????? __import__(name) > 38???????? return sys.modules[name] > > > > > On 4/24/2019 11:31 AM, Nick Hansen wrote: >> Pete: >> >> Sounds like your gnuradio install works fine, but getting the blocks > for RTL SDR is an issue. >> Did you try building gr-osmosdr from source? >> https://osmocom.org/projects/gr-osmosdr/wiki >> Another possibility is that gnuradio just can't find the osmo blocks. > In that case you would need to move the blocks from where they were > installed, or else add the location of the blocks to the pythonPATH > search variable. Default install paths can cause problems. >> >> I have a friend who has RPI+RTL set up to listen to FM radio, so I > know it CAN work. >> >> Cheers, >> Nick >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > On 4/24/2019 11:31 AM, Nick Hansen wrote: >> Pete: >> >> Sounds like your gnuradio install works fine, but getting the blocks >> for RTL SDR is an issue. >> Did you try building gr-osmosdr from source? >> https://osmocom.org/projects/gr-osmosdr/wiki >> Another possibility is that gnuradio just can't find the osmo blocks. >> In that case you would need to move the blocks from where they were >> installed, or else add the location of the blocks to the pythonPATH >> search variable. Default install paths can cause problems. >> >> I have a friend who has RPI+RTL set up to listen to FM radio, so I >> know it CAN work. >> >> Cheers, >> Nick >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
