如何使用pythonselenium登錄？-有解無憂

我正在嘗試使用 selenium登錄https://www.crowdmed.com/login 。

這是我到目前為止的代碼。我無法使用我的憑據登錄。錯誤提示“鍵盤無法訪問標簽。當我嘗試使用 div 的名稱或 id 時，我收到錯誤提示找不到此類元素。

url ='https://www.crowdmed.com/case-selection?showCase=92447'
# This is what I really want to scrape
driver = webdriver.Firefox()
driver.get(url)

label = driver.find_element_by_xpath('//label["Email:"]')
#username = driver.find_element_by_name('Username')
#password = driver.find_element_by_id("password")
password = driver.find_element_by_xpath('//label["Password:"]')
label.send_keys("username")
password.send_keys("password")

driver.find_element_by_name("submit").click()

對應的錯誤是

---------------------------------------------------------------------------
ElementNotInteractableException           Traceback (most recent call last)
C:\Users\ADMINI~1\AppData\Local\Temp/ipykernel_648/2975662060.py in <module>
      3 #password = driver.find_element_by_id("password")
      4 password = driver.find_element_by_xpath('//label["Password:"]')
----> 5 label.send_keys("voidyman")
      6 password.send_keys("S41r4m123")
      7 

C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\webelement.py in send_keys(self, *value)
    475                 value = self._upload(local_file)
    476 
--> 477         self._execute(Command.SEND_KEYS_TO_ELEMENT,
    478                       {'text': "".join(keys_to_typing(value)),
    479                        'value': keys_to_typing(value)})

C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\webelement.py in _execute(self, command, params)
    631             params = {}
    632         params['id'] = self._id
--> 633         return self._parent.execute(command, params)
    634 
    635     def find_element(self, by=By.ID, value=None):

C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py in execute(self, driver_command, params)
    319         response = self.command_executor.execute(driver_command, params)
    320         if response:
--> 321             self.error_handler.check_response(response)
    322             response['value'] = self._unwrap_value(
    323                 response.get('value', None))

C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\errorhandler.py in check_response(self, response)
    240                 alert_text = value['alert'].get('text')
    241             raise exception_class(message, screen, stacktrace, alert_text)
--> 242         raise exception_class(message, screen, stacktrace)
    243 
    244     def _value_or_default(self, obj, key, default):

ElementNotInteractableException: Message: Element <label> is not reachable by keyboard

當我嘗試按照其他帖子中的建議（使用我的帖子中的注釋行）按名稱或 ID 訪問時，我收到以下錯誤。我嘗試了“用戶”、“用戶”、“用戶名”、“用戶名”的各種組合。

---------------------------------------------------------------------------
NoSuchElementException                    Traceback (most recent call last)
C:\Users\ADMINI~1\AppData\Local\Temp/ipykernel_648/3761058031.py in <module>
      1 label = driver.find_element_by_xpath('//label["Email:"]')
----> 2 username = driver.find_element_by_name('Username')
      3 password = driver.find_element_by_id("password")
      4 #password = driver.find_element_by_xpath('//label["Password:"]')
      5 label.send_keys("voidyman")

C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py in find_element_by_name(self, name)
    494             element = driver.find_element_by_name('foo')
    495         """
--> 496         return self.find_element(by=By.NAME, value=name)
    497 
    498     def find_elements_by_name(self, name):

C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py in find_element(self, by, value)
    974                 by = By.CSS_SELECTOR
    975                 value = '[name="%s"]' % value
--> 976         return self.execute(Command.FIND_ELEMENT, {
    977             'using': by,
    978             'value': value})['value']

C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py in execute(self, driver_command, params)
    319         response = self.command_executor.execute(driver_command, params)
    320         if response:
--> 321             self.error_handler.check_response(response)
    322             response['value'] = self._unwrap_value(
    323                 response.get('value', None))

C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\errorhandler.py in check_response(self, response)
    240                 alert_text = value['alert'].get('text')
    241             raise exception_class(message, screen, stacktrace, alert_text)
--> 242         raise exception_class(message, screen, stacktrace)
    243 
    244     def _value_or_default(self, obj, key, default):

NoSuchElementException: Message: Unable to locate element: [name="Username"]

uj5u.com熱心網友回復：

您使用了錯誤的表達方式。
通常//label["Email:"]不是有效的 XPath 運算式。
要正確且唯一地定位用戶名輸入欄位，您可以使用以下內容：

//div[@class="page-content"]//input[@ng-model="username"]

所以你的代碼行可能是

username_input = driver.find_element_by_xpath('//div[@]//input[@ng-model="username"]')

在您訪問那里的元素之前，您也錯過了等待頁面加載的時間。
為此，建議使用預期條件顯式等待。
有了它，您的代碼將是這樣的：

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

url ='https://www.crowdmed.com/case-selection?showCase=92447'
# This is what I really want to scrape
driver = webdriver.Firefox()
wait = WebDriverWait(driver, 20)

driver.get(url)

username_input = wait.until(EC.element_to_be_clickable((By.XPATH, '//div[@]//input[@ng-model="username"]')))

username_input.send_keys(username)

您可以通過以下方式將最后 2 行合并為 1：

wait.until(EC.element_to_be_clickable((By.XPATH, '//div[@]//input[@ng-model="username"]'))).send_keys(username)

轉載請註明出處，本文鏈接：https://www.uj5u.com/qianduan/438440.html

標籤：Python python-3.x 硒硒网络驱动程序

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