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[Discuss-gnuradio] Re: GNU Radio - Skipped components

From: Josh Blum
Subject: [Discuss-gnuradio] Re: GNU Radio - Skipped components
Date: Wed, 16 Sep 2009 16:44:39 -0700
User-agent: Thunderbird (X11/20090817)

To be honest, the version requirement is somewhat arbitrary. I looked through the lxml changelogs and picked something recent that I thought would come on most operating systems.

Ubuntu 8.10 is ok, but 8.04 which is about 1.5 years old is not ok... I suggest 2 options:

1) Edit config/grc_grc.m4 and change the line with the version requirement to match your install. The configure should pass and you can install and try out grc. If it works just fine, let me know so I can lower the version requirement.

2) Download the lxml source tarball for version 2.xxx or whatever is newest. Try to install it and see if the configure passes and grc works.


Anton K Skårbratt wrote:
Output from commands:

python -c 'import lxml; print lxml'
<module 'lxml' from '/usr/lib/python2.5/site-packages/lxml/__init__.pyc'>

python -c 'import lxml.etree; print lxml.etree'
<module 'lxml' from '/usr/lib/python2.5/site-packages/lxml/__init__.pyc'>

python -c 'import lxml.etree; print lxml.etree.LXML_VERSION'
(1, 3, 6, 0)

Obviously the lxml version is too old as you may have expected. I then looked 
in the Synaptic package manager and saw the version 1.3.6-1, and it also stated 
in the column 'Latest Version'=1.3.6-1.
This got the best of me since i didn't understand why it considered this 
version as the latest, so I asked in the GnuRadio IRC Channel. Someone there 
said that lxml version 2.x.x demands Ubuntu 8.10 or newer.
Do you agree with this? It certainly make sense with the 'latest version' 
problem. If this is true my Ubunutu 8.04 is unable to install this component 
anyway. So can I upgrade Ubuntu to make this work or should I simply remove it 
and Install the newest version (9.04)?

The reason why I installed 8.04 in the first place was because I got errors 
trying to install 9.04 from Windows XP (Wubi). This is however a completely 
different matter to be solved...

Thank you for your time Josh.


Från: Josh Blum address@hidden
Skickat: den 16 september 2009 18:21
Till: Anton K Skårbratt
Cc: address@hidden
Ämne: Re: GNU Radio - Skipped components

It seems that lxml cannot be imported, or the version checking isnt
working, or wrong. Try to run these commands and post the output:

python -c 'import lxml; print lxml'

python -c 'import lxml.etree; print lxml.etree'

python -c 'import lxml.etree; print lxml.etree.LXML_VERSION'



Some problem with Python lxml wrappers? I don't know what to do. Have tried installing 
libxml2, libxslt1.1, cython as previous mails in the list suggestes.. All saying " 
is already the newest version".
Also "sudo apt-get -y install python-lxml" returns " is already the newest 

I will be thankful for advice concerning the other non-built components as 
well. I am quite new in Linux so maybe i have missed something obvious?


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