从环境变量复制文本并粘贴到 Selenium (Python)答案

【问题标题】：Copy text from environment variable and paste in Selenium (Python)从环境变量复制文本并粘贴到 Selenium (Python)
【发布时间】：2020-11-16 22:14:17
【问题描述】：

我正在尝试在 Ubuntu 操作系统上使用 Python 3.8 将大量文本粘贴到带有 Selenium 的 input 元素。我可以遍历我的字符串和send_keys，但这需要超过 60 秒。我希望我可以从我的 Python 代码中复制我的文本并使用 Ctrl + V 粘贴到会话中：

我希望这能奏效......

# How big do you want your character chunks?
n_chunk_size = 500

if len(keyphrase)>n_chunk_size:
    pyperclip.copy(keyphrase)
    input_element.send_keys(Keys.CONTROL, 'v')

慢行：

from textwrap import wrap
for k in wrap(keyphrase, n_chunk_size):
    input_element.send_keys(k)

【问题讨论】：

标签： python selenium ubuntu pyperclip

【解决方案1】：

所以，这个答案实际上是不同的。如果您正在使用的textbox 是为一家公司工作的，那么input textbox 可能有maxcharacter 限制。因此，在将 string 插入文本框之前，您可能需要检查 length。

对于这个例子，我使用了W3Schoolsinput textbox 并将我的环境变量插入到文本框中。在这个例子中，我导入了

import os as OperatingSystem

并且能够使用此命令获取我计算机的环境变量：

# Get our operating system's environment information
environment_info = str(OperatingSystem.environ)

从那里，我能够创建一个for-loop，它检查我们文本框的input text，并将输入文本的长度与我们的 environment_info 的长度进行比较。

主程序 - 供参考

from selenium import webdriver
from selenium.webdriver.chrome.webdriver import WebDriver as ChromeDriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait as DriverWait
from selenium.webdriver.support import expected_conditions as DriverConditions
from selenium.common.exceptions import WebDriverException
import os as OperatingSystem
import time

def get_chrome_driver():
    """This sets up our Chrome Driver and returns it as an object"""
    path_to_chrome = "F:\Selenium_Drivers\Windows_Chrome85_Driver\chromedriver.exe"
    chrome_options = webdriver.ChromeOptions()

    # Browser is displayed in a custom window size
    chrome_options.add_argument("window-size=1500,1000")

    return webdriver.Chrome(executable_path = path_to_chrome,
                            options = chrome_options)


def wait_displayed(driver : ChromeDriver, xpath: str, int = 5):
    try:
         DriverWait(driver, int).until(
            DriverConditions.presence_of_element_located(locator = (By.XPATH, xpath))
        )
    except:
        raise WebDriverException(f'Timeout: Failed to find {xpath}')


# Get our operating system's environment information
environment_info = str(OperatingSystem.environ)

# Gets our Chrome driver and opens our site
chrome_driver = get_chrome_driver()
chrome_driver.get("https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_input_test")
wait_displayed(chrome_driver, "//iframe[@id='iframeResult']")
wait_displayed(chrome_driver, "//div[contains(@class, 'CodeMirror-wrap')]")

# Go into our iFrame
iFrame_Element = chrome_driver.find_element(By.XPATH, "//iframe[@id='iframeResult']")
chrome_driver.switch_to.frame(iFrame_Element)
wait_displayed(chrome_driver, "//form[contains(@action, 'action_page')]")
wait_displayed(chrome_driver, "//input[@id='fname']")
wait_displayed(chrome_driver, "//input[@id='lname']")

# Enter our information into our input textbox
chrome_driver.find_element(By.XPATH, "//input[@id='fname']").clear()
chrome_driver.find_element(By.XPATH, "//input[@id='fname']").send_keys(environment_info)

# Check that our textbox has been populated fully
for counter in range(5):
    if chrome_driver.find_element(By.XPATH, "//input[@id='fname']").get_attribute('value').__len__() != environment_info.__len__():
        if counter == 4:
            raise Exception("Failed to input data into our textbox")
        else:
            time.sleep(3)
            print(f'Counter is: {counter}')
    else:
        print('Input Textbox populated successfully')
        break

chrome_driver.quit()
chrome_driver.service.stop()

【讨论】：