python - splinter select(value) 返回属性错误

Question

尝试从此 url 获取所有 (5) 个表。

http://www.molpower.com//VLCWeb/UIAboutMOL/PortScheduleInfo.aspx?pPort=NLRTMDE&pFromDate=01-Oct-2013&pToDate=10-Oct-2013

我可以用 type(value) 填充各个页面的下拉框，但这不会刷新页面。使用 nextPage 按钮单步浏览页面后会失败，因为该对象不再附加到 DOM(而且我不知道如何在 splinter 中绕过它)。

尝试填充下拉菜单然后选择它。这将返回此错误:

追溯(最近的调用最后):

File "<stdin>", line 69, in <module>
File "/usr/local/lib/python2.6/dist-packages/splinter/driver/webdriver/__init__.py", line 334, in select
 self.find_by_xpath('//select[@name="%s"]/option[@value="%s"]' % (self["name"], value))._element.click()
File "/usr/local/lib/python2.6/dist-packages/splinter/element_list.py", line 73, in __getattr__
  self.__class__.__name__, name))
AttributeError: 'ElementList' object has no attribute '_element'

我使用了下面的代码。非常感谢任何帮助!

from splinter import Browser
from lxml.html import parse
from StringIO import StringIO
from time import sleep

url = r'http://www.molpower.com//VLCWeb/UIAboutMOL/PortScheduleInfo.aspx?pPort=NLRTMDE&pFromDate=01-Oct-2013&pToDate=10-Oct-2013'

def _unpack(row, kind = 'td'):
    elts = row.findall('.//%s' %kind)
    return [val.text_content() for val in elts[0:7]]

def parse_schdls_data(table):
    rows = table.findall('.//tr')
    hdrs = _unpack(rows[0], kind = 'th')
    data = [_unpack(r, kind = 'td') for ir, r in enumerate(rows[1:-1]) if ir % 3 == 0]
    return (hdrs, data)

with Browser() as browser:
    browser.visit(url)
    print browser.url

    pages = browser.find_by_tag('option')

    pagevals = [p.value for p in pages]
    maxpagev = max(pagevals)

    inputs = browser.find_by_tag('input')

    '''
    for ip, inp in enumerate(inputs):
        if inp.has_class('btnMRBPageNext'):
            #print ip, inp.value, inp.text
            #Need input 35 for the nextPage 
            inp.click()
    '''

    selects = browser.find_by_tag('select')

    for ns, sel in enumerate(selects):
        if sel.has_class('inputDropDown'):
            print ns, sel.value, sel.text
            sel.type(sel.value)
            sleep(2)

    moldata = list()
    for page in range(len(pagevals)):

        content = browser.html
        parsed = parse(StringIO(content))
        doc = parsed.getroot()
        tables = doc.findall('.//table')
        schdls = tables[91]

        #Get all rows from that table
        rows = schdls.findall('.//tr')
        hdr, data = parse_schdls_data(schdls)
        #print page, data
        moldata.append(data)

        while browser.is_element_not_present_by_tag('select', wait_time = 2):
            pass

        inputs = browser.find_by_tag('input')
        selects = browser.find_by_tag('select')

        #inputs[35].click()

        #selects[0].type(str(page + 1))
        selects[0].select(selects[0].value)

Answer 1

因为select元素没有名字，所以举个例子:

browser.find_by_xpath('//select[@id="MRBgvPortScheduleInformation_edlPager"]/option[@value="2"]')._element.click()