import error: No module named thrift

[sarwarul]

I am using (Pycassa+thrift0.6+cassandr0.8.0+scrapy) to parse the date
from different websites and through it directly to Cassandra. I can
import pycassa module from python(2.6) shell and code is running fine.
However, when I want to run the script from Ubuntu 10.04 terminal
getting the following error. It seems to me that problem is with
defining thrift classpath. Any suggestions? Thrift installed at /usr/
lib/python2.6/site-packages/thrift. I do not want to switch the
database.

Traceback (most recent call last):
File "/usr/bin/scrapy", line 4, in <module>
execute()
File "/usr/lib/pymodules/python2.6/scrapy/cmdline.py", line 131, in
execute
_run_print_help(parser, _run_command, cmd, args, opts)
File "/usr/lib/pymodules/python2.6/scrapy/cmdline.py", line 97, in
_run_print_help
func(*a, **kw)
File "/usr/lib/pymodules/python2.6/scrapy/cmdline.py", line 138, in
_run_command
cmd.run(args, opts)
File "/usr/lib/pymodules/python2.6/scrapy/commands/crawl.py", line
41, in run
q = self.crawler.queue
File "/usr/lib/pymodules/python2.6/scrapy/command.py", line 33, in
crawler
self._crawler.configure()
File "/usr/lib/pymodules/python2.6/scrapy/crawler.py", line 43, in
configure
self.engine = ExecutionEngine(self.settings, self._spider_closed)
File "/usr/lib/pymodules/python2.6/scrapy/core/engine.py", line 33,
in __init__
self.scraper = Scraper(self, self.settings)
File "/usr/lib/pymodules/python2.6/scrapy/core/scraper.py", line 66,
in __init__
self.itemproc = itemproc_cls.from_settings(settings)
File "/usr/lib/pymodules/python2.6/scrapy/middleware.py", line 29,
in from_settings
mwcls = load_object(clspath)
File "/usr/lib/pymodules/python2.6/scrapy/utils/misc.py", line 39,
in load_object
raise ImportError, "Error loading object '%s': %s" % (path, e)
ImportError: Error loading object 'test.pipelines.testPipeline': No
module named thrift