scrapy tutorial error when running crawl

scrapy tutorial error when running crawl

I'm trying to run the scrapy tutorial and receive this error everytime I
try to run:
PALOMARESR-LALM:scrapy_tutorial brian$ scrapy crawl dmoz
2013-09-06 17:48:51-0700 [scrapy] INFO: Scrapy 0.18.2 started (bot:
scrapy_tutorial)
2013-09-06 17:48:51-0700 [scrapy] DEBUG: Optional features available: ssl,
http11
2013-09-06 17:48:51-0700 [scrapy] DEBUG: Overridden settings:
{'NEWSPIDER_MODULE': 'scrapy_tutorial.spiders', 'SPIDER_MODULES':
['scrapy_tutorial.spiders'], 'BOT_NAME': 'scrapy_tutorial'}
2013-09-06 17:48:51-0700 [scrapy] DEBUG: Enabled extensions: LogStats,
TelnetConsole, CloseSpider, WebService, CoreStats, SpiderState
Traceback (most recent call last):
File "/usr/local/bin/scrapy", line 5, in <module>
pkg_resources.run_script('Scrapy==0.18.2', 'scrapy')
File "build/bdist.macosx-10.8-intel/egg/pkg_resources.py", line 492, in
run_script
File "build/bdist.macosx-10.8-intel/egg/pkg_resources.py", line 1350, in
run_script
for name in eagers:
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/EGG-INFO/scripts/scrapy",
line 4, in <module>
execute()
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/cmdline.py",
line 142, in execute
_run_print_help(parser, _run_command, cmd, args, opts)
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/cmdline.py",
line 88, in _run_print_help
func(*a, **kw)
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/cmdline.py",
line 149, in _run_command
cmd.run(args, opts)
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/commands/crawl.py",
line 50, in run
self.crawler_process.start()
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/crawler.py",
line 93, in start
if self.start_crawling():
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/crawler.py",
line 168, in start_crawling
return self.start_crawler() is not None
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/crawler.py",
line 151, in start_crawler
crawler.configure()
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/crawler.py",
line 45, in configure
self.engine = ExecutionEngine(self, self._spider_closed)
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/core/engine.py",
line 62, in __init__
self.downloader = Downloader(crawler)
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/core/downloader/__init__.py",
line 73, in __init__
self.handlers = DownloadHandlers(crawler)
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/core/downloader/handlers/__init__.py",
line 18, in __init__
cls = load_object(clspath)
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/utils/misc.py",
line 38, in load_object
mod = __import__(module, {}, {}, [''])
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/core/downloader/handlers/s3.py",
line 4, in <module>
from .http import HTTPDownloadHandler
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/core/downloader/handlers/http.py",
line 5, in <module>
from .http11 import HTTP11DownloadHandler as HTTPDownloadHandler
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/core/downloader/handlers/http11.py",
line 13, in <module>
from scrapy.xlib.tx import Agent, ProxyAgent, ResponseDone, \
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/xlib/tx/__init__.py",
line 6, in <module>
from . import client, endpoints
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/xlib/tx/client.py",
line 37, in <module>
from .endpoints import TCP4ClientEndpoint, SSL4ClientEndpoint
File
"/Library/Python/2.7/site-packages/Scrapy-0.18.2-py2.7.egg/scrapy/xlib/tx/endpoints.py",
line 222, in <module>
interfaces.IProcessTransport, '_process')):
File
"/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/zope/interface/declarations.py",
line 495, in __call__
raise TypeError("Can't use implementer with classes. Use one of "
TypeError: Can't use implementer with classes. Use one of the
class-declaration functions instead.
I'm running on OS X and the scrapy version info is below:
PALOMARESR-LALM:~ brian$ scrapy version -v
Scrapy : 0.18.2
lxml : 3.2.3.0
libxml2 : 2.7.8
Twisted : 12.0.0
Python : 2.7.2 (default, Oct 11 2012, 20:14:37) - [GCC 4.2.1 Compatible
Apple Clang 4.0 (tags/Apple/clang-418.0.60)]
Platform: Darwin-12.4.0-x86_64-i386-64bit
Can someone please assist? Thanks in advance!