Forum: GNU Radio GRC and unit of signal amplitude in USRP

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Bruh G. (Guest)
on 2009-01-15 16:23
Hey all,

I have just 2 questions, actually they are not related (are independent
questions).

1. I want to install GRC(gnu radio companion), and i need to install
pygtk and cheetah as prerequisite. I downloaded the tar files and
extract them, but there is no configure and make files in both of
them.So, how can i install them without these files?

2. What is the unit of the amplitude that we use in transmitting and
recieving waveforms in USRP. For instance, in usrp_siggen.py the
waveform amplitude is set to a default value 16000, so what is this
number, is this millivolt? Also in usrp_fft.py a reference amplitude
scale 0f 13490 is used. So, what is the unit of these numbers?

Thanks!

Bruhtesfa
Mattias K. (Guest)
on 2009-01-15 20:34
(Received via mailing list)
Bruhtesfa E. wrote:
> Hey all,
>
> I have just 2 questions, actually they are not related (are independent
> questions).
>
> 1. I want to install GRC(gnu radio companion), and i need to install
> pygtk and cheetah as prerequisite. I downloaded the tar files and
> extract them, but there is no configure and make files in both of
> them.So, how can i install them without these files?
>
I think they are available through apt-get, but if you whant to install
from source, you should investigate setup.py. Try
$python setup.py --help

Cheers!
//Mattias K.
Martin B. (Guest)
on 2009-01-16 10:44
(Received via mailing list)
On Thu, Jan 15, 2009 at 03:23:09PM +0100, Bruhtesfa E. wrote:
> 2. What is the unit of the amplitude that we use in transmitting and
> recieving waveforms in USRP. For instance, in usrp_siggen.py the
> waveform amplitude is set to a default value 16000, so what is this
> number, is this millivolt? Also in usrp_fft.py a reference amplitude
> scale 0f 13490 is used. So, what is the unit of these numbers?

No unit, this is scaling a signal in [-1;1] to +-2^(b-1), where b=16 is
the number of bits we feed or receive from the DAC/ADC. Remember
although most GR blocks use float values, anything talking to the USRP
will eventually have to send integers.
Of course, this relates to volts, but calibrating your hardware to
actually measure an output voltage of your antenna is... difficult to
say the least.

MB
Bruh G. (Guest)
on 2009-01-16 13:22
Mattias K. wrote:
> Bruhtesfa E. wrote:
>> Hey all,
>>
>> I have just 2 questions, actually they are not related (are independent
>> questions).
>>
>> 1. I want to install GRC(gnu radio companion), and i need to install
>> pygtk and cheetah as prerequisite. I downloaded the tar files and
>> extract them, but there is no configure and make files in both of
>> them.So, how can i install them without these files?
>>
> I think they are available through apt-get, but if you whant to install
> from source, you should investigate setup.py. Try
> $python setup.py --help
>
> Cheers!
> //Mattias K.

Hi Mathias,

I used setup.py as you said and install all dependencies, before
installing GRC.
Then i installed GRC, i thought i was successful. But, when i type grc
on command to open it, i get the following error;

$ grc

Traceback (most recent call last):
  File "/usr/local/bin/grc", line 36, in <module>
    from gnuradio.grc.platforms.python.Platform import Platform
  File
"/Library/Python/2.5/site-packages/gnuradio/grc/platforms/python/Platform.py",
line 21, in <module>
    from .. base.Platform import Platform as _Platform
  File
"/Library/Python/2.5/site-packages/gnuradio/grc/platforms/base/Platform.py",
line 21, in <module>
    from ... utils import ParseXML
  File
"/Library/Python/2.5/site-packages/gnuradio/grc/utils/ParseXML.py", line
20, in <module>
    from lxml import etree
ImportError: No module named lxml


So, what can i do to correct this?
Thanks for your help.

Bruhtesfa
Josh B. (Guest)
on 2009-01-16 20:49
(Received via mailing list)
lxml is also a prerequisite: http://codespeak.net/lxml/
it should also be available though your OS's package manager.

I am curious as to how you installed GRC with missing dependencies. Do
you mind mailing me the output of ./configure (before installing lxml)?

-Josh
Bruh G. (Guest)
on 2009-01-19 13:22
Josh B. wrote:
> lxml is also a prerequisite: http://codespeak.net/lxml/
> it should also be available though your OS's package manager.
>
> I am curious as to how you installed GRC with missing dependencies. Do
> you mind mailing me the output of ./configure (before installing lxml)?
>
> -Josh



hey Josh,

./configure output is shown far below, actually GRC is one of the
components that are not configured.But despite that I switched to the
GRC folder and run,
$ make
$ sudo make install

It is after this that I got the output above when i run $ grc.

Now, I have already installed the requirements of lxml(libxml &libxslt)
and downloaded lxml, however running $ python setup.py build in lxml
folder produce the following error:

So, what is this error? is there another prerequisite?

Bruhtesfa







$ python setup.py build
Building lxml version 2.2.beta1-61090.
NOTE: Trying to build without Cython, pre-generated
'src/lxml/lxml.etree.c' needs to be available.
Using build configuration of libxslt 1.1.12
Building against libxml2/libxslt in the following directory: /usr/lib
running build
running build_py
running build_ext
building 'lxml.etree' extension
gcc -fno-strict-aliasing -Wno-long-double -no-cpp-precomp
-mno-fused-madd -fno-common -dynamic -DNDEBUG -g -Os -Wall
-Wstrict-prototypes -DMACOSX -I/usr/include/ffi -DENABLE_DTRACE -arch
i386 -arch ppc -pipe -I/usr/include/libxml2
-I/System/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
-c src/lxml/lxml.etree.c -o
build/temp.macosx-10.5-i386-2.5/src/lxml/lxml.etree.o -w -flat_namespace
i686-apple-darwin9-gcc-4.0.1: src/lxml/lxml.etree.c: No such file or
directory
i686-apple-darwin9-gcc-4.0.1: no input files
powerpc-apple-darwin9-gcc-4.0.1: src/lxml/lxml.etree.c: No such file or
directory
powerpc-apple-darwin9-gcc-4.0.1: no input files
lipo: can't figure out the architecture type of:
/var/folders/bN/bNvApCkGGKC5v8-GwD2I8++++TM/-Tmp-//ccM9lfgF.out
error: command 'gcc' failed with exit status 1







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config.status: creating gnuradio-core/src/python/Makefile
config.status: creating gnuradio-core/src/python/bin/Makefile
config.status: creating gnuradio-core/src/python/gnuradio/Makefile
config.status: creating gnuradio-core/src/python/gnuradio/blks2/Makefile
config.status: creating
gnuradio-core/src/python/gnuradio/blks2impl/Makefile
config.status: creating gnuradio-core/src/python/gnuradio/gr/Makefile
config.status: creating gnuradio-core/src/python/gnuradio/gr/run_tests
config.status: creating gnuradio-core/src/python/gnuradio/gru/Makefile
config.status: creating
gnuradio-core/src/python/gnuradio/gruimpl/Makefile
config.status: creating
gnuradio-core/src/python/gnuradio/vocoder/Makefile
config.status: creating gnuradio-core/src/tests/Makefile
config.status: creating gnuradio-core/src/utils/Makefile
config.status: creating pmt/Makefile
config.status: creating pmt/pmt.pc
config.status: creating pmt/doc/Makefile
config.status: creating pmt/src/Makefile
config.status: creating pmt/src/lib/Makefile
config.status: creating pmt/src/scheme/Makefile
config.status: creating pmt/src/scheme/gnuradio/Makefile
config.status: creating mblock/Makefile
config.status: creating mblock/mblock.pc
config.status: creating mblock/doc/Makefile
config.status: creating mblock/src/Makefile
config.status: creating mblock/src/lib/Makefile
config.status: creating mblock/src/scheme/Makefile
config.status: creating mblock/src/scheme/gnuradio/Makefile
config.status: creating usrp/Makefile
config.status: creating usrp/usrp.pc
config.status: creating usrp/usrp-inband.pc
config.status: creating usrp/usrp.iss
config.status: creating usrp/doc/Doxyfile
config.status: creating usrp/doc/Makefile
config.status: creating usrp/doc/other/Makefile
config.status: creating usrp/host/Makefile
config.status: creating usrp/host/misc/Makefile
config.status: creating usrp/host/lib/Makefile
config.status: creating usrp/host/lib/inband/Makefile
config.status: creating usrp/host/lib/legacy/Makefile
config.status: creating usrp/host/lib/legacy/std_paths.h
config.status: creating usrp/host/swig/Makefile
config.status: creating usrp/host/apps/Makefile
config.status: creating usrp/host/apps-inband/Makefile
config.status: creating usrp/firmware/Makefile
config.status: creating usrp/firmware/include/Makefile
config.status: creating usrp/firmware/lib/Makefile
config.status: creating usrp/firmware/src/Makefile
config.status: creating usrp/firmware/src/common/Makefile
config.status: creating usrp/firmware/src/usrp2/Makefile
config.status: creating usrp/fpga/Makefile
config.status: creating usrp/fpga/rbf/Makefile
config.status: creating usrp2/Makefile
config.status: creating usrp2/host/Makefile
config.status: creating usrp2/host/usrp2.pc
config.status: creating usrp2/host/include/Makefile
config.status: creating usrp2/host/include/usrp2/Makefile
config.status: creating usrp2/host/lib/Makefile
config.status: creating usrp2/host/apps/Makefile
config.status: creating gr-usrp/Makefile
config.status: creating gr-usrp/src/Makefile
config.status: creating gr-usrp/src/run_tests
config.status: creating gr-usrp2/Makefile
config.status: creating gr-usrp2/src/Makefile
config.status: creating gr-usrp2/src/run_tests
config.status: creating gr-gcell/Makefile
config.status: creating gr-gcell/src/Makefile
config.status: creating gr-gcell/src/examples/Makefile
config.status: creating gr-gcell/src/run_tests
config.status: creating gr-msdd6000/Makefile
config.status: creating gr-msdd6000/src/Makefile
config.status: creating gr-audio-alsa/Makefile
config.status: creating gr-audio-alsa/src/Makefile
config.status: creating gr-audio-alsa/src/run_tests
config.status: creating gr-audio-jack/Makefile
config.status: creating gr-audio-jack/src/Makefile
config.status: creating gr-audio-jack/src/run_tests
config.status: creating gr-audio-oss/Makefile
config.status: creating gr-audio-oss/src/Makefile
config.status: creating gr-audio-oss/src/run_tests
config.status: creating gr-audio-osx/Makefile
config.status: creating gr-audio-osx/src/Makefile
config.status: creating gr-audio-osx/src/run_tests
config.status: creating gr-audio-portaudio/Makefile
config.status: creating gr-audio-portaudio/src/Makefile
config.status: creating gr-audio-portaudio/src/run_tests
config.status: creating gr-audio-windows/Makefile
config.status: creating gr-audio-windows/src/Makefile
config.status: creating gr-audio-windows/src/run_tests
config.status: creating gr-atsc/Makefile
config.status: creating gr-atsc/doc/Makefile
config.status: creating gr-atsc/src/Makefile
config.status: creating gr-atsc/src/lib/Makefile
config.status: creating gr-atsc/src/python/Makefile
config.status: creating gr-atsc/src/python/run_tests
config.status: creating gr-comedi/Makefile
config.status: creating gr-comedi/src/Makefile
config.status: creating gr-comedi/src/run_tests
config.status: creating gr-cvsd-vocoder/Makefile
config.status: creating gr-cvsd-vocoder/src/Makefile
config.status: creating gr-cvsd-vocoder/src/lib/Makefile
config.status: creating gr-cvsd-vocoder/src/python/Makefile
config.status: creating gr-cvsd-vocoder/src/python/run_tests
config.status: creating gr-gpio/Makefile
config.status: creating gr-gpio/src/Makefile
config.status: creating gr-gpio/src/fpga/Makefile
config.status: creating gr-gpio/src/fpga/include/Makefile
config.status: creating gr-gpio/src/fpga/top/Makefile
config.status: creating gr-gpio/src/fpga/lib/Makefile
config.status: creating gr-gpio/src/fpga/rbf/Makefile
config.status: creating gr-gpio/src/lib/Makefile
config.status: creating gr-gpio/src/python/Makefile
config.status: creating gr-gpio/src/python/run_tests
config.status: creating gr-gsm-fr-vocoder/Makefile
config.status: creating gr-gsm-fr-vocoder/src/Makefile
config.status: creating gr-gsm-fr-vocoder/src/lib/Makefile
config.status: creating gr-gsm-fr-vocoder/src/lib/gsm/Makefile
config.status: creating gr-gsm-fr-vocoder/src/python/Makefile
config.status: creating gr-gsm-fr-vocoder/src/python/run_tests
config.status: creating gr-pager/Makefile
config.status: creating gr-pager/src/Makefile
config.status: creating gr-pager/src/run_tests
config.status: creating gr-radar-mono/Makefile
config.status: creating gr-radar-mono/doc/Makefile
config.status: creating gr-radar-mono/src/Makefile
config.status: creating gr-radar-mono/src/fpga/Makefile
config.status: creating gr-radar-mono/src/fpga/top/Makefile
config.status: creating gr-radar-mono/src/fpga/lib/Makefile
config.status: creating gr-radar-mono/src/fpga/models/Makefile
config.status: creating gr-radar-mono/src/fpga/tb/Makefile
config.status: creating gr-radar-mono/src/lib/Makefile
config.status: creating gr-radar-mono/src/python/Makefile
config.status: creating gr-radar-mono/src/python/run_tests
config.status: creating gr-radio-astronomy/Makefile
config.status: creating gr-radio-astronomy/src/Makefile
config.status: creating gr-radio-astronomy/src/lib/Makefile
config.status: creating gr-radio-astronomy/src/python/Makefile
config.status: creating gr-radio-astronomy/src/python/run_tests
config.status: creating gr-trellis/Makefile
config.status: creating gr-trellis/doc/Makefile
config.status: creating gr-trellis/src/Makefile
config.status: creating gr-trellis/src/lib/Makefile
config.status: creating gr-trellis/src/python/Makefile
config.status: creating gr-trellis/src/python/run_tests
config.status: creating gr-trellis/src/examples/Makefile
config.status: creating gr-trellis/src/examples/fsm_files/Makefile
config.status: creating gr-video-sdl/Makefile
config.status: creating gr-video-sdl/src/Makefile
config.status: creating gr-video-sdl/src/run_tests
config.status: creating gr-wxgui/Makefile
config.status: creating gr-wxgui/gr-wxgui.pc
config.status: creating gr-wxgui/src/Makefile
config.status: creating gr-wxgui/src/python/Makefile
config.status: creating gr-wxgui/src/python/plotter/Makefile
config.status: creating gr-sounder/Makefile
config.status: creating gr-sounder/doc/Makefile
config.status: creating gr-sounder/src/Makefile
config.status: creating gr-sounder/src/fpga/Makefile
config.status: creating gr-sounder/src/fpga/top/Makefile
config.status: creating gr-sounder/src/fpga/lib/Makefile
config.status: creating gr-sounder/src/fpga/tb/Makefile
config.status: creating gr-sounder/src/lib/Makefile
config.status: creating gr-sounder/src/python/Makefile
config.status: creating gr-sounder/src/python/run_tests
config.status: creating gr-utils/Makefile
config.status: creating gr-utils/src/Makefile
config.status: creating gr-utils/src/lib/Makefile
config.status: creating gr-utils/src/python/Makefile
config.status: creating gnuradio-examples/Makefile
config.status: creating gnuradio-examples/c++/Makefile
config.status: creating gnuradio-examples/python/Makefile
config.status: creating
gnuradio-examples/python/apps/hf_explorer/Makefile
config.status: creating gnuradio-examples/python/apps/hf_radio/Makefile
config.status: creating gnuradio-examples/python/apps/Makefile
config.status: creating gnuradio-examples/python/audio/Makefile
config.status: creating gnuradio-examples/python/dect/Makefile
config.status: creating gnuradio-examples/python/digital/Makefile
config.status: creating gnuradio-examples/python/digital_voice/Makefile
config.status: creating gnuradio-examples/python/digital-bert/Makefile
config.status: creating gnuradio-examples/python/mp-sched/Makefile
config.status: creating gnuradio-examples/python/multi-antenna/Makefile
config.status: creating gnuradio-examples/python/multi_usrp/Makefile
config.status: creating gnuradio-examples/python/network/Makefile
config.status: creating gnuradio-examples/python/ofdm/Makefile
config.status: creating gnuradio-examples/python/usrp/Makefile
config.status: creating grc/src/grc_gnuradio/Makefile
config.status: creating grc/src/grc_gnuradio/wxgui/Makefile
config.status: creating grc/src/grc_gnuradio/blks2/Makefile
config.status: creating grc/src/grc_gnuradio/usrp/Makefile
config.status: creating grc/src/Makefile
config.status: creating grc/src/platforms/Makefile
config.status: creating grc/src/platforms/base/Makefile
config.status: creating grc/src/platforms/python/Makefile
config.status: creating grc/src/platforms/python/utils/Makefile
config.status: creating grc/src/platforms/gui/Makefile
config.status: creating grc/src/utils/Makefile
config.status: creating grc/src/gui/Makefile
config.status: creating grc/examples/Makefile
config.status: creating grc/examples/xmlrpc/Makefile
config.status: creating grc/examples/usrp/Makefile
config.status: creating grc/examples/audio/Makefile
config.status: creating grc/examples/simple/Makefile
config.status: creating grc/Makefile
config.status: creating grc/data/Makefile
config.status: creating grc/data/platforms/Makefile
config.status: creating grc/data/platforms/base/Makefile
config.status: creating grc/data/platforms/python/Makefile
config.status: creating grc/data/platforms/python/blocks/Makefile
config.status: creating grc/scripts/Makefile
config.status: creating grc/freedesktop/Makefile
config.status: creating Makefile
config.status: creating run_tests.sh
config.status: creating config/Makefile
config.status: creating config.h
config.status: config.h is unchanged
config.status: executing depfiles commands
config.status: executing swig_gcell_deps commands
config.status: executing swig_deps commands
config.status: executing run_tests_core commands
config.status: executing run_tests_usrp commands
config.status: executing run_tests_osx commands
config.status: executing run_tests_atsc commands
config.status: executing run_tests_cvsd commands
config.status: executing run_tests_gpio commands
config.status: executing run_tests_gsm commands
config.status: executing run_tests_pager commands
config.status: executing run_tests_radar_mono commands
config.status: executing run_tests_astronomy commands
config.status: executing run_tests_gr_trellis commands
config.status: executing run_tests_sdl commands
config.status: executing run_tests_sounder commands
config.status: executing run_tests_build commands
=== configuring in usrp2/firmware (/Users/bruh/gnuradio/usrp2/firmware)
configure: running /bin/sh ./configure.gnu '--prefix=/usr/local'
'LDFLAGS=-L/Users/bruh/gr/lib -L/opt/local/lib' --cache-file=/dev/null
--srcdir=.
configure: WARNING: If you wanted to set the --build type, don't use
--host.
    If a cross compiler is detected then cross compile mode will be
used.
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /opt/local/bin/gmkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for mb-strip... no
checking for strip... strip
Component usrp2 passed configuration checks; building.
checking for style of include used by make... GNU
checking for mb-gcc... no
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking for mb-ranlib... no
checking for ranlib... ranlib
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking arpa/inet.h usability... yes
checking arpa/inet.h presence... yes
checking for arpa/inet.h... yes
checking netinet/in.h usability... yes
checking netinet/in.h presence... yes
checking for netinet/in.h... yes
checking byteswap.h usability... no
checking byteswap.h presence... no
checking for byteswap.h... no
checking whether byte ordering is bigendian... no
checking for mb-gcc... no
usrp2 firmware requires mb-gcc.  Not found
Not building component usrp2-firmware.
configure: creating ./config.status
config.status: creating apps/Makefile
config.status: creating include/Makefile
config.status: creating lib/Makefile
config.status: creating Makefile
config.status: creating config/Makefile
config.status: creating config.h
config.status: config.h is unchanged
config.status: executing depfiles commands
*********************************************************************
The following components were skipped either because you asked not
to build them or they didn't pass configuration checks:

usrp2-firmware

These components will not be built.


*********************************************************************
The following GNU Radio components have been successfully configured:

config
gruel
omnithread
gnuradio-core
pmt
mblock
usrp
gr-usrp
gr-msdd6000
gr-audio-osx
gr-atsc
gr-cvsd-vocoder
gr-gpio
gr-gsm-fr-vocoder
gr-pager
gr-radar-mono
gr-radio-astronomy
gr-trellis
gr-video-sdl
gr-wxgui
gr-sounder
gr-utils
gnuradio-examples

You my now run the make command to build these components.

*********************************************************************
The following components were skipped either because you asked not
to build them or they didn't pass configuration checks:

gcell
usrp2
gr-usrp2
gr-gcell
gr-audio-alsa
gr-audio-jack
gr-audio-oss
gr-audio-portaudio
gr-audio-windows
gr-comedi
grc

These components will not be built.
Mattias K. (Guest)
on 2009-01-19 18:09
(Received via mailing list)
Bruhtesfa E. wrote:
>>>> pygtk and cheetah as prerequisite. I downloaded the tar files and
>>>
>> Thanks for your help.
>>
Hi,

I don't know if you have seen this. It may offer better assistance than
me. I saw this last friday, and was able to successfully install grc
using Ubuntu 8.04 and the synaptic package-manager.

http://www.gnuradio.org/trac/wiki/GNURadioCompanion

BR
//Mattias K.
Josh B. (Guest)
on 2009-01-19 21:16
(Received via mailing list)
Anyone with OSX advice, installing lxml specifically?

> building 'lxml.etree' extension
> powerpc-apple-darwin9-gcc-4.0.1: src/lxml/lxml.etree.c: No such file or
> directory
> powerpc-apple-darwin9-gcc-4.0.1: no input files
> lipo: can't figure out the architecture type of:
> /var/folders/bN/bNvApCkGGKC5v8-GwD2I8++++TM/-Tmp-//ccM9lfgF.out
> error: command 'gcc' failed with exit status 1
>
>
>

I dont recognize these error messages. Is this a gnuradio release or an
old checkout of the trunk?
Michael D. (Guest)
on 2009-01-20 02:56
(Received via mailing list)
On Jan 19, 2009, at 2:04 PM, Josh B. wrote:
> Anyone with OSX advice, installing lxml specifically?
>
>> $ python setup.py build
>> Building lxml version 2.2.beta1-61090

[snip]

>> i686-apple-darwin9-gcc-4.0.1: src/lxml/lxml.etree.c: No such file
>> or directory


Looks like this is a beta version of lxml ... maybe ./src/lxml/
lxml.etree.c wasn't included in the tarball or generated properly?
I'm running 2.1.4 installed from MacPorts, and it compiles / installs
cleanly using the standard Python method; haven't tried 2.1.5 or the
2.2 beta. - MLD
Bruh G. (Guest)
on 2009-01-20 12:52
Michael D. wrote:
> On Jan 19, 2009, at 2:04 PM, Josh B. wrote:
>> Anyone with OSX advice, installing lxml specifically?
>>
>>> $ python setup.py build
>>> Building lxml version 2.2.beta1-61090
>
> [snip]
>
>>> i686-apple-darwin9-gcc-4.0.1: src/lxml/lxml.etree.c: No such file
>>> or directory
>
>
> Looks like this is a beta version of lxml ... maybe ./src/lxml/
> lxml.etree.c wasn't included in the tarball or generated properly?
> I'm running 2.1.4 installed from MacPorts, and it compiles / installs
> cleanly using the standard Python method; haven't tried 2.1.5 or the
> 2.2 beta. - MLD




Hey Micheal,

I see that i have py25-lxml@2.1.2_0 already installed through
macports.But, the GRC is not able to install despite that.

But, more urgent and important than this GRC issue..

I tried out the gr.xlating_fir_filter that you told me last time to
correct frequency offset and i have posted a question that says:
"distorted spectrum after applying gr.xlating filer " after tring it
out. So, could you please see that post and give me justifications.

Thank you!

Bruhtesfa
Michael D. (Guest)
on 2009-01-20 15:21
(Received via mailing list)
On Jan 20, 2009, at 5:52 AM, Bruhtesfa E. wrote:
> I see that i have py25-lxml@2.1.2_0 already installed through
> macports. But, the GRC is not able to install despite that.

Make sure your shell environment's PYTHONPATH includes "/opt/local/lib/
python2.5/site-packages" (without the "quotes") ... assuming you're
using Python 2.5 ... if you're using 2.6 or 3.0 (installed by
MacPorts, presumedly), then substitute in that number for "2.5" in the
path.

> I tried out the gr.xlating_fir_filter that you told me last time to
> correct frequency offset and i have posted a question that says:
> "distorted spectrum after applying gr.xlating filer " after tring it
> out. So, could you please see that post and give me justifications.

I'll take a look; no guarantees.
Michael D. (Guest)
on 2009-01-20 15:34
(Received via mailing list)
On Jan 19, 2009, at 7:54 PM, Michael D. wrote:
>>> i686-apple-darwin9-gcc-4.0.1: src/lxml/lxml.etree.c: No such file
>>> or directory
>
> Looks like this is a beta version of lxml ... maybe ./src/lxml/
> lxml.etree.c wasn't included in the tarball or generated properly?
> I'm running 2.1.4 installed from MacPorts, and it compiles /
> installs cleanly using the standard Python method; haven't tried
> 2.1.5 or the 2.2 beta.

2.1.5 installs exactly the same as 2.1.4.  Also, in both tarballs,
"src/lxml/lxml.etree.c" is provided; it is a big C file, auto-
generated by "Cython".  So I would guess that somehow this file was
not part of the sources in 2.2.beta1-61090 ... and (from the original
post) Cython wasn't available to create this file; hence the error.
My advice: Stick with the release version unless there is a good need
to use the beta. - MLD
This topic is locked and can not be replied to.