GRC not opening

hi,
I installed gnuradio using marcus leech’s build gnuradio script. My
usrp is
being detected enabling me to locate subdevices and daughterboards in my
usrp. I
am trying to open grc and i get a problem saying

Cannot import gnuradio.

Is the python path environment variable set correctly?
All OS: PYTHONPATH

Is the library path environment variable set correctly?
Linux: LD_LIBRARY_PATH
Windows: PATH
MacOSX: DYLD_LIBRARY_PATH

I checked the forums and decided to add ld_path and default path using
the
following commands

export PATH=$PATH:/usr/local/bin

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig
export PYTHONPATH=$PYTHONPATH:/usr/local/lib/python2.6/site-packages

even then same error comes…when i try to do python -c "from gnuradio
import
gr"i get the error

Traceback (most recent call last):
File “”, line 1, in
File “/usr/local/lib/python2.6/dist-packages/gnuradio/gr/init.py”,
line
43, in
from gnuradio_core import *
File
“/usr/local/lib/python2.6/dist-packages/gnuradio/gr/gnuradio_core.py”,
line 23, in
from gnuradio_core_runtime import *
File
“/usr/local/lib/python2.6/dist-packages/gnuradio/gr/gnuradio_core_runtime.py”,
line 24, in
_gnuradio_core_runtime = swig_import_helper()
File
“/usr/local/lib/python2.6/dist-packages/gnuradio/gr/gnuradio_core_runtime.py”,
line 20, in swig_import_helper
_mod = imp.load_module(’_gnuradio_core_runtime’, fp, pathname,
description)
ImportError: libboost_date_time.so.1.40.0: cannot open shared object
file: No
such file or directory

I tried sudo ldconfig too

How should i sort this and use grc…please help.

i had problem with phython cosed to solve it i used this code

~$ PYTHONPATH=/usr/local/lib/python2.7/dist-packages

~$ export PYTHONPATH

after that i am having same problem i cant open grc

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