Installing new modules

Hi,

I am trying to install new modules into my gnu radio tree. I have MAC
OSX 10.5.5 but on a G4 PPC. Following instructions online that use
MacPorts, I have been able to successfully run built-in scripts and
verify that all required components of GNU radio are working. However,
when compiling and running the example gr-how-to… I ran into some
interesting problems. First, looking at the output of the make install
I see that the module gets installed in the /opt/local/Library/
Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/
gnuradio directory. When I try to run the simple qa_howto.py script
it fails saying that module howto is no found. Looking at

bash-3.2$ echo $PYTHONPATH
/opt/local/lib/python2.6/site-packages:/usr/local/lib/python2.6/site-
packages

I can solve the problem by moving the installed components under the /
Frameworks/Python.framework/ tree to /usr/local/lib/python2.6/site-
packages/, but that is a hacked up method that whenever I write my
code or change it, I have to worry about copying before I am sure that
the new module is what is going to be used.

So I edited, what I think is the appropriate portion of my ./bashrc
file as follows

export PYTHON_VERSION=python -V 2>&1 | sed -e '[email protected]\[email protected] @2' | awk '{ print $2 }'
export PYTHON_ROOT=which python | sed -e '[email protected]/bin/[email protected]@g'
export PYTHONPATH=${PYTHON_ROOT}/lib/python${PYTHON_VERSION}/site-
packages
if [ ${PYTHON_ROOT} != “/usr/include” ]; then
export PYTHONPATH=${PYTHONPATH}:/usr/local/lib/python$
{PYTHON_VERSION}/site-packages
fi
export PYTHONPATH=${PYTHONPATH}:/opt/local/Library/Frameworks/
Python.framework/Versions/2.6/lib/python2.6/site-packages <— added
by me.

However, even this doesnt help if I do a new make install (and now the
$PYTHONPATH includes the directory with the installed files).

So I searched on the gnu radio mailing list, and it appears it has
something to do with multiple versions of python installed. I know
that I had previous installed python and so when I do a which python

bash-3.2$ which python
/opt/local/bin/python

and my $PATH variable is not pointing to where the Macport has
installed python2.6.

echo $PATH
/opt/local/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11R6/
bin

What do I have to change (in the configure files or at a larger scale
on my system) to make sure my make install puts the new module in the
same place the GNU radio is looking at?

Thank you.

regards,
Affan

Hi Affan - Glad to hear you’re up and running, and using PPC and
10.5. If you’re planning on using a USRP, I hope you have a USB 2.0
adapter … those older PPC Macs didn’t do USB 2.0 very well.

Hmm … that’s all quite strange; by default how-to is installed into /
usr/local , with the python stuff being in /usr/local/lib/
python{version}/site-packages , and {version} being 2.5 or 2.6 or
whatever. Unless you specifically told configure to install in a
strange location (e.g, via ‘configure --prefix={somewhere}’), then the
only way how-to could be installed elsewhere is via symlink(s).

Can you reply with the following (off list, for now; we can summarize
if it’s important):

  • What is the command you used to configure the how-to module?

  • Can you return the full output of ‘make -n install’ from the how-to.

  • Can you run the following and return their outputs?

    ls -ld /usr/local
    ls -ld /usr/local/lib
    ls -ld /usr/local/lib/python2.6
    ls -ld /usr/local/lib/python2.6/site-packages
    ls -l which python
    env

  • MLD

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