使用 Selenium Webdriver Python 上传文件 [英] Upload file with Selenium Webdriver Python

问题描述

我已经尝试过这个页面的方法:使用 Python 中的 Selenium 上传文件

I have tried the method from this page: Upload file with Selenium in Python

代码:

file_button = browser.find_element_by_id('fileUploadProxy')
file_button.send_keys('/Users/home/Downloads/1-Students-and-Parent-Email.csv')

但我收到以下错误:

Traceback (most recent call last):
  File "test.py", line 110, in <module>
    upload_students_results('Surname, Name')
  File "test.py", line 91, in upload_students_results
    file_button.send_keys('/Users/home/Downloads/1-Students-and-Parent-Email.csv')
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webelement.py", line 349, in send_keys
'value': keys_to_typing(value)})
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webelement.py", line 493, in _execute
return self._parent.execute(command, params)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 249, in execute
self.error_handler.check_response(response)
  File "/Library/Python/2.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 193, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: cannot focus element
  (Session info: chrome=58.0.3029.96)
  (Driver info: chromedriver=2.29.461585 (0be2cd95f834e9ee7c46bcc7cf405b483f5ae83b),platform=Mac OS X 10.12.4 x86_64)

推荐答案

问题是 - 您正在向 div 元素发送密钥，该元素不是可交互的"，不接受密钥 - 因此无法聚焦元素"错误.

The problem is - you are sending keys to the div element which is not "interactable", does not accept the keys - hence the "cannot focus element" error.

您链接的解决方案背后的想法是使用负责文件上传的 type="file" 将密钥发送到 input 元素.在您的 HTML 中找到此元素并将键发送给它.

The idea behind the solution you've linked is to send keys to the input element with type="file" that is responsible for the file upload. Find this element in your HTML and send keys to it.

请注意，此元素可能不可见.在这种情况下，您应该首先使其可见，以便 send_keys() 工作.

Note that this element could be invisible. In this case, you should first make it visible for the send_keys() to work.

更新:

好的，现在我们至少知道哪个元素是我们想要的:

Okay, now we at least know which element is our desired one:

<input type="file" name="fileToUpload" id="fileToUpload2" class="fileToUpload">

由于您无法找到此元素，请尝试等待:

Since you have troubles locating this element, either try waiting for it:

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


file_upload = WebDriverWait(driver, 10).until(
    EC.presence_of_element_located((By.ID, "fileToUpload2"))
)
file_upload.send_keys('/Users/home/Downloads/1-Students-and-Parent-Email.csv')

或者/和，检查此元素是否在 iframe 内 - 如果是，您需要切换到 iframe 的上下文，然后才执行元素搜索.

Or/and, check if this element is inside an iframe - if it is, you would need to switch into the context of the iframe and only then perform the element search.

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