"NoSuchWindowException:没有这样的窗口:窗口已经关闭"通过Python3使用Selenium和WebDriver切换选项卡时 [英] "NoSuchWindowException: no such window: window was already closed" while switching tabs using Selenium and WebDriver through Python3
问题描述
我有一个表单,当我单击它时会在新选项卡中打开.当我尝试导航到该新选项卡时,我不断收到NoSuchWindowException.代码非常简单. "myframe"是新标签中最终将被插入信息的框架.我应该再等吗?
I have a form that opens in a new tab when I click on it. When I try to navigate to that new tab, I keep getting a NoSuchWindowException. Code is pretty straightforward. 'myframe' is the frame within the new tab that the information will eventually get plugged into. Should I be waiting for something else?
from selenium import webdriver
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait, Select
from selenium.webdriver.common.by import By
from selenium.common.exceptions import TimeoutException, NoSuchElementException
import time
import pandas as pd
url = *****
driver = webdriver.Chrome(executable_path = r'S:\Engineering\Jake\MasterControl Completing Pipette CalPM Forms\chromedriver')
driver.get(url)
wait = WebDriverWait(driver, 5)
window_before = driver.window_handles[0]
driver.find_element_by_id('portal.scheduling.prepopulate').click()
window_after = driver.window_handles[1]
driver.switch_to_window(window_after)
driver.switch_to_default_content()
wait.until(EC.frame_to_be_available_and_switch_to_it('myframe'))
Traceback (most recent call last):
File "<ipython-input-308-2aa72eeedd51>", line 1, in <module>
runfile('S:/Engineering/Jake/MasterControl Completing Pipette CalPM Forms/Pipette Completing CalPM Tasks.py', wdir='S:/Engineering/Jake/MasterControl Completing Pipette CalPM Forms')
File "C:\ProgramData\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 678, in runfile
execfile(filename, namespace)
File "C:\ProgramData\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 106, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "S:/Engineering/Jake/MasterControl Completing Pipette CalPM Forms/Pipette Completing CalPM Tasks.py", line 150, in <module>
create_new_cal_task(asset_number)
File "S:/Engineering/Jake/MasterControl Completing Pipette CalPM Forms/Pipette Completing CalPM Tasks.py", line 130, in create_new_cal_task
driver.switch_to_default_content()
File "C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 783, in switch_to_default_content
self._switch_to.default_content()
File "C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\switch_to.py", line 65, in default_content
self._driver.execute(Command.SWITCH_TO_FRAME, {'id': None})
File "C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 314, in execute
self.error_handler.check_response(response)
File "C:\ProgramData\Anaconda3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
NoSuchWindowException: no such window: window was already closed
(Session info: chrome=68.0.3440.106)
(Driver info: chromedriver=2.40.565498 (ea082db3280dd6843ebfb08a625e3eb905c4f5ab),platform=Windows NT 6.1.7601 SP1 x86_64)
推荐答案
感谢Debanjan(对于迟到的回复,我们深表歉意-刚回到办公室).我可以通过使用
Thanks Debanjan (and apologies for late response - just got back to office). I was able to fix this by using
While True:
try:
[navigate to the new frame, wait for a specific element to show up]
break
except (NoSuchWindowException, NoSuchElementException):
pass
我没有意识到,当我单击打开表单时,另一个窗口在后台非常短暂地打开,然后关闭.这样会将window_handles增加到2,因此与等待2个窗口句柄相关的任何操作仍然会引发错误.
I had not realized that when I clicked to open the form, another window opened very briefly in the background, and then closed. This increased the window_handles to 2, so doing anything relating to waiting for 2 window handles still kept throwing an error.
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