Installation problem: Ubuntu 9.04-gnuradio binary 3.2 package (recursion depth error)

Following the advice at http://gnuradio.org/trac/wiki/UbuntuInstall, I
installed the Jaunty version of the Ubuntu distro. on my PC and the ,
hoping for a clean installation of the gnuradio code in a Linux
environment (gnuradio version 3.2.2-1, according to the synaptic code
manager). I am trying to get some UCLA IEEE 802.15.4 code running (at
https://www.cgran.org/browser/projects/ucla_zigbee_phy/trunk).
Therefore, I also followed the installation instructions at:
https://www.cgran.org/wiki/UCLAZigBee#HowToInstall. However, after
installation of all of these, when I try to run the dial tone python
example (now located in
/usr/local/gnuradio_r10495/gnuradio-examples/python/audio/dial_tone.py
or the multi-tone examples, I get the following error:

[email protected]:/usr/local/gnuradio_r10495/gnuradio-examples/python/audio$
python dial_tone.py
Exception RuntimeError: ‘maximum recursion depth exceeded while calling
a Python object’ in <type ‘exceptions.AttributeError’> ignored

If I run the oscilloscope example, I get the same error:

[email protected]:/usr/local/gnuradio_r10495/gr-utils/src/python$
./usrp_oscope.py
Exception RuntimeError: ‘maximum recursion depth exceeded while calling
a Python object’ in <type ‘exceptions.AttributeError’> ignored

I get the same error when trying to run the UCLA code examples:

[email protected]:/usr/local/ucla_zigbee_phy/src/examples$ python
cc2420_rxtest.py
Exception RuntimeError: ‘maximum recursion depth exceeded while calling
a Python object’ in <type ‘exceptions.AttributeError’> ignored
cordic_freq = 2.475G
data_rate = 2M
samples_per_symbol = 2
usrp_decim = 16
fs = 4M
Using RX d’board A: Flex 2400 Rx MIMO B

gr_fir_fff: using SSE
802_15_4_pkt: waiting for packet

Interestingly, the gnuradio example programs and the UCLA program all
appear to work(!). I hear tones for the gnuradio audio examples, see an
oscilloscope with radio activity and I can detect some 802.15.4 beacons
using the UCLA example.

This error seems to have been observed before and to have been
attributed to an incompatibility between the linux kernel version (my
version is 2.6.28-11) and the specific version of Python (my version is
2.6). e.g. http://www.ruby-forum.com/topic/176968,
http://www.mail-archive.com/[email protected]/msg17030.html.
However, after a search of the forums and a google or two, I cannot see
any information about resolving the issue. Is this a problem that can
be ignored safely?

To get rid of the error or work around the problem, it seems to me that
my possible options are:
. Find a different version of Ubuntu and/or gnuradio that are known to
work together properly (building from a tarball maybe???). I also need
versions that will also support the UCLA code
. change my version of python (I have tried an altinstall of python2.5,
but get a different set of errors). This assumes that the Python
version is in fact the issue.
. get (more) help from the authors of the UCLA code about the
compatible versions of UCLA and gnuradio software and/or the OS kernel
and/or Python software that they are using in their labs
. Review installation logs for potential problems that may have
occurred during installation (are the logs for any of these installation
processes stored somewhere or are they just sent to the standard
output… which I didn’t save?).

These options really require some knowledge of what is supposed to work,
which I don’t have and haven’t found yet. The dial_tone and multi_tone
examples are pretty simple gnuradio-only ones, right? These examples
shouldn’t have a lot of dependencies on stuff made and configured during
the UCLA code tree installation process, I’m hoping. Any guidance from
anyone about what to try next would be very much appreciated.

/ David

I am wondering if this is some kind of pythonpath setup error that I’m
making.

I get the same error if I just import the gr definition from gnuradio in
the
python interpreter. It gives me the same error message the first time,
although it doesn’t complain on the second and subsequent import
attempts:

[email protected]:/usr/local/gnuradio_r10495/gnuradio-examples/python/audio$
python
Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41)
[GCC 4.3.3] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.

from gnuradio import gr
Exception RuntimeError: ‘maximum recursion depth exceeded while calling
a
Python object’ in <type ‘exceptions.AttributeError’> ignored

from gnuradio import gr


View this message in context:
http://www.nabble.com/Installation-problem%3A-Ubuntu-9.04-gnuradio-binary-3.2-package-(recursion-depth-error)-tp25347223p25377520.html
Sent from the GnuRadio mailing list archive at Nabble.com.

On Wed, Sep 09, 2009 at 10:30:16PM -0700, DDKK wrote:

Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41)
[GCC 4.3.3] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.

from gnuradio import gr
Exception RuntimeError: ‘maximum recursion depth exceeded while calling a
Python object’ in <type ‘exceptions.AttributeError’> ignored

from gnuradio import gr

We fixed a Python 2.6 related quite a while ago. Have you tried
updating to a more recent version of the trunk (or git if you like)?

Eric

Eric B. wrote:

We fixed a Python 2.6 related quite a while ago. Have you tried
updating to a more recent version of the trunk (or git if you like)?

Eric

As a test, I uninstalled gnuradio and then re-installed it. I was not
too
clear on the correct process for this, based on my reading of the forums
and
a quick web search. For the benefit of others, I will list what I did
(which worked for me).

I used both ‘sudo make uninstall’ in the root gnuradio directory
I also uninstalled it (again?) using the Synaptic package manager.
I re-installed gnuradio using only Synaptic and gnu-companion as the
device
to pull everything in, although gnu-companion looks nifty as an
application
too.

I don’t know which of these steps is necessary or unnecessary. However,
after this, all the examples that I have tried have worked without error
messages on my USRP1 platform.

View this message in context:
http://www.nabble.com/Installation-problem%3A-Ubuntu-9.04-gnuradio-binary-3.2-package-(recursion-depth-error)-tp25347223p25397039.html
Sent from the GnuRadio mailing list archive at Nabble.com.

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs