动态内容中的selenium.common.exceptions.NoSuchElementException

Question

There is a form on this site and I am trying to get every option from it and click a search button with this code:

from selenium import webdriver

driver = webdriver.PhantomJS('c:\\phantomjs-2.1.1-windows\\bin\\phantomjs.exe')

driver.get('http://www.cobar.org/Find-A-Lawyer')
driver.implicitly_wait(20)
options = driver.find_element_by_xpath('//select[@id="FAL_FOP_field"]')
for option in options.find_elements_by_tag_name('option'):
    if option.text != 'ALL':
        option.click()
        #click search button
        driver.find_element_by_xpath('//button[@class="btn btn-primary btn-main"]').click()

        lawyer = driver.find_element_by_xpath('//table[@id="myTable"]/tbody/tr/td[0]')
        print(lawyer)

However I am getting:

selenium.common.exceptions.NoSuchElementException: Message: {"errorMessage":
"Unable to find element with xpath '//select[@id=\"FAL_FOP_field\"]'",
"request":{"headers":{"Accept":"application/json","Accept-Encoding":
"identity","Connection":"close","Content-Length":"115","Content-Type":
"application/json;charset=UTF-8","Host":"127.0.0.1:52809","User-Agent":"Python-urllib/2.7"}
,"httpVersion":"1.1","method":"POST","post":
"{\"using\": \"xpath\", \"sessionId\": \"e03be070-e353-11e6-83b5-5f7f74696cce\","
" \"value\": \"//select[@id=\\\"FAL_FOP_field\\\"]\"}","url":"/element",
"urlParsed":{"anchor":"","query":"","file":"element","directory":"/",
"path":"/element","relative":"/element","port":"","host":"","password":"","user":"",
"userInfo":"","authority":"","protocol":"","source":"/element","queryKey":{},
"chunks":["element"]},"urlOriginal":"/session/e03be070-e353-11e6-83b5-5f7f74696cce/element"}}

what should I do?

Answer 1

Error is because fields you are locating are inside iFrame . So, first you need to switch to iframe and then locate your elements. still, if didn't work, add time delay.

To locate iFrame :

WebElement iframelocator = driver.findElement(By.xpath("//iframe[@id='dnn_ctr2047_IFrame_htmIFrame']"));

Then Switch to iFrame

driver.switchTo().frame(iframelocator);

Add above two steps in your code before locating elements.

Note : Above written code is in java.