Python 如何修复SyntaxError:无法在元素上使用绝对路径

回溯：

import requests
from lxml import html


SEARCH_URL = "https://www.yellowpages.com/search"


def crawl(name, state, page=1):
    params={'search_terms': name, 'geo_location_terms': state, 'page': page}
    data = requests.get(SEARCH_URL, params=params).text
    tree = html.fromstring(data)
    for items in tree.xpath("//div[@class='info']"):
        name = items.findtext(".//span[@itemprop='name']")
        address = items.findtext(".//span[@class='street-address']")
        phone = items.findtext(".//div[@itemprop='telephone']")
        showing = items.findtext("//*[@id='main-content']/div[2]/div[4]/p/text()")


        yield (name, address, phone, showing)


def search(name, state, pages=1):
    page = 1
    while page is not pages:
        for result in crawl(name, state, page=page):
            print result
        page +=1


if __name__ == '__main__':
    search('pizza', 'tx', pages=10)

回溯（最近一次呼叫最后一次）：
文件“C:/Python27/Scripts/yellowpages.py”，第31行，在
搜索（'pizza'，'tx'，页面=10）
文件“C:/Python27/Scripts/yellowpages.py”，第25行，搜索中
对于爬网结果（名称、状态、页面=页面）：
文件“C:/Python27/Scripts/yellowpages.py”，第16行，在爬网中
showing=items.findtext（“/*[@id='main-content']/div[2]/div[4]/p/text（）”）
文件“src\lxml\lxml.etree.pyx”，第1550行，位于lxml.etree.\u Element.findtext（src\lxml\lxml.etree.c:59189）中
findtext中第320行的文件“C:\Python27\lib\site packages\lxml\\u elementpath.py”
el=查找（元素、路径、名称空间）
文件“C:\Python27\lib\site packages\lxml\\u elementpath.py”，第302行，在find中
it=iterfind（元素、路径、名称空间）
文件“C:\Python27\lib\site packages\lxml\\u elementpath.py”，第291行，在iterfind中
选择器=\构建\路径\迭代器（路径，名称空间）
文件“C:\Python27\lib\site packages\lxml\\u elementpath.py”，第260行，在构建路径迭代器中
raise SyntaxError（“无法在元素上使用绝对路径”）
SyntaxError:无法在元素上使用绝对路径

问题出在这一行：

Traceback (most recent call last):
  File "C:/Python27/Scripts/yellowpages.py", line 31, in <module>
    search('pizza', 'tx', pages=10)
  File "C:/Python27/Scripts/yellowpages.py", line 25, in search
    for result in crawl(name, state, page=page):
  File "C:/Python27/Scripts/yellowpages.py", line 16, in crawl
    showing = items.findtext("//*[@id='main-content']/div[2]/div[4]/p/text()")
  File "src\lxml\lxml.etree.pyx", line 1550, in lxml.etree._Element.findtext (src\lxml\lxml.etree.c:59189)
  File "C:\Python27\lib\site-packages\lxml\_elementpath.py", line 320, in findtext
    el = find(elem, path, namespaces)
  File "C:\Python27\lib\site-packages\lxml\_elementpath.py", line 302, in find
    it = iterfind(elem, path, namespaces)
  File "C:\Python27\lib\site-packages\lxml\_elementpath.py", line 291, in iterfind
    selector = _build_path_iterator(path, namespaces)
  File "C:\Python27\lib\site-packages\lxml\_elementpath.py", line 260, in _build_path_iterator
    raise SyntaxError("cannot use absolute path on element")
SyntaxError: cannot use absolute path on element

将

爬网功能更改为：

showing = items.findtext("//*[@id='main-content']/div[2]/div[4]/p/text()")

它将产生以下结果：

def crawl(name, state, page=1):
    params={'search_terms': name, 'geo_location_terms': state, 'page': page}
    data = requests.get(SEARCH_URL, params=params).text
    tree = html.fromstring(data)
    for items in tree.xpath("//div[@class='info']"):
        name = items.findtext(".//span[@itemprop='name']")
        address = items.findtext(".//span[@class='street-address']")
        phone = items.findtext(".//div[@itemprop='telephone']")
        showing = tree.xpath(".//div[@class='pagination']/p/text()")[0]

        yield (name, address, phone,showing)

您可以共享搜索URL吗？如果是语法错误，则与xpath无关。提供完整的错误回溯，以便有人能够提供帮助。
(None, None, None, '1-30\nof 3030')
('Port "A" Pizzeria', '407 E Avenue G', '(361) 749-5226', '1-30\nof 3030')
("Palio's Pizza Cafe", '3492 Legacy Dr', '(214) 308-6895', '1-30\nof 3030')
('Pizza Inn', '1501 Magnolia Ave', '(409) 242-2870', '1-30\nof 3030')
("Papa Murphy's Take & Bake Pizza", '815 SW Alsbury Blvd', '(817) 447-6777', '1-30\nof 3030')
("Lane's", '630 Sabine St', '(409) 787-3838', '1-30\nof 3030')
("Little Ceasar's Pizza", '1000 N Midkiff Rd', '(432) 694-3676', '1-30\nof 3030')
('The Gaff', '323 Beach Ave', '(361) 749-5970', '1-30\nof 3030')
("CiCi's Pizza", '1440 N Highway 77', '(972) 937-1222', '1-30\nof 3030')
......