有人可以帮我编写这段代码吗?
我试图让这个抓取发生,但我在完成这部分时遇到了一些麻烦:
driver.find_element_by_id("Cpf").send_keys(sheet.cell(row=Count, column=2).value, Keys.RETURN)
results = wait.until(EC.visibility_of_all_elements_located((By.CSS_SELECTOR, "table[class*='table table-striped table-bordered dataTable'] > tbody > tr[class*=odd]")))
resultado_cnpc = results[0].text.strip() if "EmptyDataRow" in results[0].get_attribute("class") else results[0].find_element_by_xpath("./td[1]").text.strip()
resultado_nome = results[0].text.strip() if "EmptyDataRow" in results[0].get_attribute("class") else results[0].find_element_by_xpath("./td[2]").text.strip()
resultado_registro = results[0].text.strip() if "EmptyDataRow" in results[0].get_attribute("class") else results[0].find_element_by_xpath("./td[3]").text.strip()
resultado_uf = results[0].text.strip() if "EmptyDataRow" in results[0].get_attribute("class") else results[0].find_element_by_xpath("./td[4]").text.strip()
resultado_inclusao = results[0].text.strip() if "EmptyDataRow" in results[0].get_attribute("class") else results[0].find_element_by_xpath("./td[5]").text.strip()
进入此网页:http://www1.cfc.org.br/sisweb/Registro/ConsultaCNPC 第二个框中的数据为:336.174.128-90
我收到此错误:
NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"./td[2]"}
我还是Python新手
最佳答案
看起来像./td[2]
正在抛出 NoSuchElementException
在只有一个 td
的情况下<tr class='odd'>
下的元素。如果表中没有结果,就会发生这种情况。
这可以通过在调用 driver.find_element_by_xpath("./td[2]")
之前检查子元素的计数来解决。 。我会重构这段代码,以便在有搜索结果和没有搜索结果的情况下更加清晰。
此外,我注意到一些搜索结果显示 <tr class='odd'>
及其他<tr class='even'>
。我不确定您是否打算排除 even
类行,因此我将包含两者的示例。
以下示例使用“CPF”字段进行搜索,然后等待结果行出现。该代码循环遍历结果行并打印出单元格文本。如果表中没有结果,则循环将中断。
driver = webdriver.Chrome()
driver.get("http://www1.cfc.org.br/sisweb/Registro/ConsultaCNPC")
wait = WebDriverWait(driver, 30)
# search in CPF
wait.until(EC.presence_of_element_located((By.ID, "Cpf"))).send_keys("336.174.128-90" + Keys.ENTER)
# use this XPath to wait on all rows in the table -- rows are either class='odd' or class='even'
results = wait.until(EC.visibility_of_all_elements_located((By.XPATH, "//tr[@class='odd'] | //tr[@class='even']")))
# optional: use below line to exclude 'even' rows:
#results = wait.until(EC.visibility_of_all_elements_located((By.XPATH, "//tr[@class='odd']")))
# loop through result rows
for result in results:
# get child td elements under this row
child_elements = result.find_elements_by_xpath("td")
# if there is only one td child element, then no results are present in the table
if len(child_elements) == 1:
print("No results returned")
else:
# if row has child elements, loop through elements and print text
for child in child_elements:
print(child.text)
我运行的测试的输出:
420
FRANCISCO ANTONIO PARADA VAZ FILHO
SP-253063 / O
CRC-SP
17/06/2016
Detalhes
关于python - 使用 Selenium 在 Web 表单结果中查找元素时出错,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59902255/