python - Selenium 即使提供了很高的隐式等待时间也无法找到元素

Question

我试图使某些网页自动化并遇到以下错误:
我已经通过了登录屏幕，该屏幕没有任何问题，但是在重定向到下一页后，python给出了以下错误:

selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element:

我试图通过引入 driver.implicitly.wait， time.sleep和 WebDriverWait(driver, time).until(EC.presence_of_element_located((By.ID, "myDynamicElement"))函数来修复它，但是所有选项似乎都不起作用。
我在下面显示了相关的HTML代码:

<input type="Text" class="urEdf2TxtEnbl" autocomplete="off" id="DLG_VARIABLE_vsc_CommonVariablesList_VAR_5_VARINPUT_inp" ct="I" name="DLG_VARIABLE_vsc_CommonVariablesList_VAR_5_VARINPUT_inp" st="" tp="STRING" value="502309" onchange="sapUrMapi_InputField_change('DLG_VARIABLE_vsc_CommonVariablesList_VAR_5_VARINPUT_inp',event);" onblur="sapUrMapi_InputField_Blur('DLG_VARIABLE_vsc_CommonVariablesList_VAR_5_VARINPUT_inp',event);" onkeydown="sapUrMapi_InputField_keydown('DLG_VARIABLE_vsc_CommonVariablesList_VAR_5_VARINPUT_inp',event);" onkeyup="sapUrMapi_InputField_KeyUp('DLG_VARIABLE_vsc_CommonVariablesList_VAR_5_VARINPUT_inp',event);" onfocus="sapUrMapi_InputField_focus('DLG_VARIABLE_vsc_CommonVariablesList_VAR_5_VARINPUT_inp',event);" onselectstart="sapUrMapi_InputField_onselectstart('DLG_VARIABLE_vsc_CommonVariablesList_VAR_5_VARINPUT_inp',event);">

周围区域的HTML代码如下所示:

<input type="Text" class="urEdf2TxtEnbl" autocomplete="off" id="DLG_VARIABLE_vsc_CommonVariablesList_VAR_4_VARINPUT_inp" ct="I" name="DLG_VARIABLE_vsc_CommonVariablesList_VAR_4_VARINPUT_inp" st="" tp="STRING" value="" onchange="sapUrMapi_InputField_change('DLG_VARIABLE_vsc_CommonVariablesList_VAR_4_VARINPUT_inp',event);" onblur="sapUrMapi_InputField_Blur('DLG_VARIABLE_vsc_CommonVariablesList_VAR_4_VARINPUT_inp',event);" onkeydown="sapUrMapi_InputField_keydown('DLG_VARIABLE_vsc_CommonVariablesList_VAR_4_VARINPUT_inp',event);" onkeyup="sapUrMapi_InputField_KeyUp('DLG_VARIABLE_vsc_CommonVariablesList_VAR_4_VARINPUT_inp',event);" onfocus="sapUrMapi_InputField_focus('DLG_VARIABLE_vsc_CommonVariablesList_VAR_4_VARINPUT_inp',event);" onselectstart="sapUrMapi_InputField_onselectstart('DLG_VARIABLE_vsc_CommonVariablesList_VAR_4_VARINPUT_inp',event);">

我想做的是更改值: value="502309"。参见下面的完整代码:

from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time

driver = webdriver.Chrome(ChromeDriverManager().install())
driver.get('xxxx')
login = driver.find_element_by_xpath('xxx')
login.send_keys('xxx')
passw = driver.find_element_by_xpath('xxx')
passw.send_keys('xxx')
button = driver.find_element_by_xpath('xxx')
button.click()
driver.maximize_window()  

driver.implicitly_wait(120)

mat = driver.find_element_by_id('DLG_VARIABLE_vsc_CommonVariablesList_VAR_2_VARINPUT_inp')




driver.close()

Answer 1

尝试使用beautifulsoup打印html，以便您可以检查元素是否确实存在。有关如何使用它的引用，请参阅link