If you’re a QA engineer stepping into automation — or an SDET who just needs a quick refresher — this cheat sheet covers the Selenium + Python essentials you actually use at work.

No theory overload. No outdated patterns. Just practical examples you can copy, adapt, and scale.

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✅ Setup & Installation

Install Selenium:

pip install selenium

Make sure the correct browser driver is available in your system PATH:

Chrome → chromedriver

Firefox → geckodriver

Edge → msedgedriver

🚀 Starting the Browser

Launch Chrome

from selenium import webdriver

driver = webdriver.Chrome()

driver.get(” https://example.com” )

Headless Mode (Recommended for CI)

from selenium.webdriver.chrome.options import Options

options = Options()

options.add_argument(”--headless”)

options.add_argument(”--window-size=1920,1080”)

driver = webdriver.Chrome(options=options)

🔍 Locating Elements (The Most Important Skill)

Always prioritize reliable,…