How to set window size in Selenium Chrome Python

A bit unclear why and exactly where you are stuck. Possibly the extra . as in height = {}px. is creating the chaos. Perhaps along with -headless argument I am able to set/retrieve the Chrome browser Window Size as follows: Code Block: from selenium import webdriver from selenium.webdriver.chrome.options import Options options = Options() options.add_argument(“–headless”) options.add_argument(“window-size=1400,600”) … Read more

Puppeteer wait until page is completely loaded

You can use page.waitForNavigation() to wait for the new page to load completely before generating a PDF: await page.goto(fullUrl, { waitUntil: ‘networkidle0’, }); await page.type(‘#username’, ‘scott’); await page.type(‘#password’, ‘tiger’); await page.click(‘#Login_Button’); await page.waitForNavigation({ waitUntil: ‘networkidle0’, }); await page.pdf({ path: outputFileName, displayHeaderFooter: true, headerTemplate: ”, footerTemplate: ”, printBackground: true, format: ‘A4’, }); If there is a … Read more

Running Selenium with Headless Chrome Webdriver

To run chrome-headless just add –headless via chrome_options.add_argument, i.e.: from selenium import webdriver from selenium.webdriver.chrome.options import Options chrome_options = Options() #chrome_options.add_argument(“–disable-extensions”) #chrome_options.add_argument(“–disable-gpu”) #chrome_options.add_argument(“–no-sandbox”) # linux only chrome_options.add_argument(“–headless”) # chrome_options.headless = True # also works driver = webdriver.Chrome(options=chrome_options) start_url = “https://duckgo.com” driver.get(start_url) print(driver.page_source.encode(“utf-8”)) # b'<!DOCTYPE html><html xmlns=”http://www…. driver.quit() So my thought is that running it with … Read more

Limit chrome headless CPU and memory usage

There had been a lot of discussion going around about the unpredictable CPU and Memory Consumption by Chrome Headless sessions. As per the discussion Building headless for minimum cpu+mem usage the CPU + Memory usage can be optimized by: Using either a custom proxy or C++ ProtocolHandlers you could return stub 1×1 pixel images or … Read more

How to configure ChromeDriver to initiate Chrome browser in Headless mode through Selenium?

It should look like this: from selenium import webdriver from selenium.webdriver.chrome.options import Options options = Options() options.add_argument(‘–headless’) options.add_argument(‘–disable-gpu’) # Last I checked this was necessary. driver = webdriver.Chrome(CHROMEDRIVER_PATH, chrome_options=options) This works for me using Python 3.6, I’m sure it’ll work for 2.7 too. Update 2018-10-26: These days you can just do this: from selenium import … Read more

selenium.common.exceptions.WebDriverException: Message: ‘chromedriver’ executable needs to be in PATH error with Headless Chrome

If we analyze the logs it seems the main issue is with in start os.path.basename(self.path) and subsequent error message selenium.common.exceptions.WebDriverException: Message: ‘chromedriver’ executable needs to be in PATH. So it’s clear from the error that the Python client was unable to locate the chromedriver binary. You have to take care of a couple of points … Read more