如何在pythonselenium中單擊按鈕后出現的網頁上定位元素

我是一名新的 Python 程式員。最近，我開始致力于自動化/抓取。目前，我陷入了單擊按鈕后出現頁面的情況，并且我無法在該頁面上找到元素。

from selenium import webdriver

from selenium.webdriver.support.ui import Select

import time


driver = webdriver.Chrome(r"/Users/prateep/Downloads/chromedriver")

driver.get("https://example.com")

driver.maximize_window()

time.sleep(10)

button = driver.find_element_by_class_name("a-IRR-buttons")

button.click()

time.sleep(5)

driver.find_element("P52_NAME").send_keys("Test!!!")

selectStatus = Select(driver.find_element("P52_ASSESSMENT_STATUS_ID"))

selectStatus.select_by_value("O - Open")

driver.close()

輸出：-

driver.find_element_by_name("P52_NAME").send_keys("Test!!!")
Traceback (most recent call last):
  File "/Users/prateep/Aegis_Automation/Aegis_Automation.py", line 25, in <module>
    driver.find_element_by_name("P52_NAME").send_keys("Test!!!")
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/remote/webdriver.py", line 658, in find_element_by_name
    return self.find_element(by=By.NAME, value=name)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/remote/webdriver.py", line 1238, in find_element
    return self.execute(Command.FIND_ELEMENT, {
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/remote/webdriver.py", line 418, in execute
    self.error_handler.check_response(response)
  File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/selenium/webdriver/remote/errorhandler.py", line 243, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"css selector","selector":"[name="P52_NAME"]"}

uj5u.com熱心網友回復：

問題在這一行

driver.find_element("P52_NAME").send_keys("Test!!!")

你用find_element錯了。

讓我們看看我們find_element內部有什么

def find_element(self, by=By.ID, value=None):
    """
    Find an element given a By strategy and locator. Prefer the find_element_by_* methods when
    possible.

    :Usage:
        element = driver.find_element(By.ID, 'foo')

    :rtype: WebElement
    """
    if self.w3c:
        if by == By.ID:
            by = By.CSS_SELECTOR
            value = '[id="%s"]' % value
        elif by == By.TAG_NAME:
            by = By.CSS_SELECTOR
        elif by == By.CLASS_NAME:
            by = By.CSS_SELECTOR
            value = ".%s" % value
        elif by == By.NAME:
            by = By.CSS_SELECTOR
            value = '[name="%s"]' % value
    return self.execute(Command.FIND_ELEMENT, {
        'using': by,
        'value': value})['value']

如您所見，我們必須使用它

1. By.ID
2. By.CLASS_NAME
3. By.TAG_NAME
4. By.LINK_TEXT
5. By.PARTIAL_LINK_TEXT
6. By.NAME
7. By.CSS_SELECTOR
8. By.XPATH

如果P52_NAME是名稱并且它是唯一的并且代表 中所需的元素HTMLDOM，那么理想情況下您應該使用

driver.find_element(By.NAME, "P52_NAME").send_keys("Test!!!")

請檢查dev tools（谷歌瀏覽器）我們是否有唯一的條目HTML DOM。

檢查步驟：

Press F12 in Chrome- >去element節- >做一個CTRL F- >再貼上NAME看看，如果你需要的element是越來越強調與1/1匹配的節點。

更新：

wait = WebDriverWait(driver, 30)
wait.until(EC.frame_to_be_available_and_switch_to_it((By.XPATH, "iframe xpath")))
wait.until(EC.visibility_of_element_located((By.ID, ""))).send_keys("")

進口：

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

標籤：Python 硒 硒网络驱动程序

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