Koa Proxy

In Windows 10 you need to go to "Settings", go to "Network and Internet", open the tab "Proxy" and make the necessary settings for the connection (under "Manual", the item should also be made active).

Distributing scraping correctly involves implementing techniques to handle rate limiting, avoid overloading servers, and ensuring your scraping activities are respectful and compliant with the website's terms of service. If you're encountering 503 errors (Service Unavailable), it likely indicates that the server is overwhelmed or intentionally blocking excessive requests. Here are some strategies to address this issue:

1. Add Delays Between Requests:

   • Introduce delays between your requests to avoid hitting the server too quickly. This is commonly known as "throttling" your requests.
   • Use libraries like puppeteer (for headless browser scraping) or p-queue to manage the rate of your requests.

2. Randomize Delays:

   • Instead of using fixed delays, consider randomizing them to mimic more natural user behavior.
   • This helps in avoiding detection and mitigation mechanisms that are triggered by constant patterns.

3. Use Proxies:

   • Rotate IP addresses using proxies to distribute requests across multiple IP addresses.
   • This can help overcome IP-based rate limiting or blocking.

4. Implement User Agents:

   • Use a variety of user agents to simulate requests from different browsers and devices.
   • Websites often have different policies for different types of clients.

5. Respect robots.txt:

   • Check the robots.txt file of the website to understand which parts of the site are off-limits for scraping.
   • Avoid scraping prohibited areas mentioned in robots.txt.

6. Session Management:

   • Use session management techniques to maintain a persistent session when scraping across multiple requests.
   • Some websites may have protection mechanisms based on session data.

7. Handle Captchas:

   • Be prepared to handle captchas if the website employs them to detect automated scraping.
   • Consider using tools like CAPTCHA solving services if necessary.

8. Error Handling:

   • Implement robust error handling to deal with different HTTP status codes.
   • Log errors and adjust your scraping strategy accordingly.

9. Reduce Concurrent Requests:

   • Limit the number of concurrent requests to avoid overwhelming the server.
   • Use libraries like p-queue to control concurrency.

10. Monitor and Adjust:

    • Continuously monitor your scraping activities and adjust your strategy based on the website's response.
    • If you receive a 503 error, consider backing off and retrying after a delay.

Remember, it's essential to respect the website's terms of service and not engage in aggressive scraping practices that could negatively impact the site. If you continue to encounter issues, consider reaching out to the website's administrators to seek permission or explore alternative data sources or APIs if available.

In Selenium, you can select text from an element using various methods depending on the type of element and the browser you are using. Below are some common approaches:

Using getText() method:

The getText() method is used to get the visible text of an element. It returns the text as a single string.

from selenium import webdriver

driver = webdriver.Chrome()
driver.get("https://www.example.com")

element = driver.find_element_by_id("element-id")
text = element.getText()
print(text)

Using find_elements() and get_attribute():

If you need to select a specific piece of text within an element, you can use the find_elements() method to find all the elements that match a certain condition and then use get_attribute('innerText') to get the text content of those elements.

from selenium import webdriver

driver = webdriver.Chrome()
driver.get("https://www.example.com")

elements = driver.find_elements_by_xpath("//div[@class='some-class']//p")
for element in elements:
    text = element.get_attribute('innerText')
    print(text)

Using execute_script():

You can also use JavaScript to select text. The execute_script() method allows you to run JavaScript code in the context of the current page.

from selenium import webdriver

driver = webdriver.Chrome()
driver.get("https://www.example.com")

text = driver.execute_script("return arguments[0].innerText;", driver.find_element_by_id("element-id"))
print(text)

Using actions module:

If you need to interact with the text, for example, to click on a specific word or phrase, you can use the actions module.

from selenium import webdriver
from selenium.webdriver.common.action_chains import ActionChains

driver = webdriver.Chrome()
driver.get("https://www.example.com")

element = driver.find_element_by_id("element-id")
actions = ActionChains(driver)
actions.move_to_element(element).perform()
actions.click(element).perform()

Remember to replace "https://www.example.com" and "element-id" with the actual URL and element ID or selector you want to interact with. Also, ensure that the browser driver (e.g., ChromeDriver for Google Chrome) is installed and properly configured in your environment.

In the context of a proxy server, the term "host" refers to the IP address or domain name of the proxy server itself. The host is the destination where your internet traffic is routed through when you use a proxy server. When you configure your web browser or software to use a proxy, you're specifying the host (proxy server address) and the port number to connect to the proxy server.

The proxy server then forwards your web requests to the actual destination (e.g., a website) and returns the response back to you. This process allows the proxy server to act as an intermediary between you and the internet, potentially providing benefits such as anonymity, access to restricted content, or improved performance.

In the messenger settings, go to "Data and Drive". Click on "Proxy settings", and then, enabling the "Use proxy settings" tab, enter the server, port, username and password in the specially highlighted fields. If you are going to make settings in the Desktop version, you will need to go to the menu. There, in the "Connection method" item, click on "TSP via Socks5" and enter the required data.