我知道BeautifulSoup是规范的HTML解析模块，但是有时您只想从某些HTML中抓取一些子字符串，而pyparsing有一些有用的方法可以做到这一点。使用此代码：
from pyparsing import makeHTMLTags, withAttribute, SkipTo
import urllib
# get the HTML from your URL
url = "http://www.whitecase.com/Attorneys/List.aspx?LastName=&FirstName="
page = urllib.urlopen(url)
html = page.read()
page.close()
# define opening and closing tag expressions for <td> and <a> tags
# (makeHTMLTags also comprehends tag variations, including attributes,
# upper/lower case, etc.)
tdStart,tdEnd = makeHTMLTags("td")
aStart,aEnd = makeHTMLTags("a")
# only interested in tdStarts if they have "class=altRow" attribute
tdStart.setParseAction(withAttribute(("class","altRow")))
# compose total matching pattern (add trailing tdStart to filter out
# extraneous <td> matches)
patt = tdStart + aStart("a") + SkipTo(aEnd)("text") + aEnd + tdEnd + tdStart
# scan input HTML source for matching refs, and print out the text and
# href values
for ref,s,e in patt.scanString(html):
print ref.text, ref.a.href
@H_419_4@我从您的页面中提取了914条引用，从Abel到Zupikova。
Abel, Christian /cabel
Acevedo, Linda Jeannine /jacevedo
Acuña, Jennifer /jacuna
Adeyemi, Ike /igbadegesin
Adler, Avraham /aadler
...
Zhu, Jie /jzhu
ZÃdek, AleÅ¡ /azidek
ZióÅ?ek, Agnieszka /aziolek
Zitter, Adam /azitter
Zupikova, Jana /jzupikova
@H_419_4@
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