Scrapy/XPath help

[Always Learning]

Hello all. I'm new to Python, but have been playing around with it for a few 
weeks now, following tutorials, etc. I've spun off on my own and am trying to 
do some basic web scraping. I've used Firebug/View XPath in Firefox for some 
help with the XPaths, however, I still am receiving errors when I try to run 
this script. If you could help, it would be greatly appreciated!

from scrapy.spider import BaseSpider
from scrapy.selector import HtmlXPathSelector
from cbb_info.items import CbbInfoItem, Field

class GameInfoSpider(BaseSpider):
name = "game_info"
allowed_domains = ["www.sbrforum.com"]
start_urls = [
'http://www.sbrforum.com/betting-odds/ncaa-basketball/',
]

def parse(self, response):
hxs = HtmlXPathSelector(response)
toplevels = hxs.select("//div[@class='eventLine-value']")
items = []
for toplevels in toplevels:
item = CbbInfoItem()
item ["teams"] = 
toplevels.select("/span[@class='team-name'/text()").extract()
item ["lines"] = toplevels.select("/div[@rel='19']").extract()
item.append(item)
return items
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Re: Scrapy/XPath help

[Always Learning]

Sorry about that. I'm using Python 2.7.3, 32 bit one Windows 7.

The errors I get are

>>File 
>>"C:\python27\lib\site-packages\scrapy-0.16.3-py2.7.egg\scrapy\selector\lxmlsel.py",
>> line 47, in select
>>raise ValueError("Invalid XPath: %s" % xpath)
>>exceptions.ValueError: Invalid XPath: /span[@class='team-name'/text()

Ultimaly, I expect it to gather the team name in text, and then the odds in one 
of the columns in text as well, so I can then put it into a .csv
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