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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesSelenium WebDriver lets a script control a real browser: open a page, find elements, enter text, click, and inspect what happens. This beginner tutorial uses Python and Selenium’s official sample form to build a complete local script, then explains setup, reliable waits, navigation settings, and common browser interactions.
What Selenium WebDriver controls
Your test code calls Selenium’s Python binding, which sends WebDriver commands to a browser-specific driver; the driver communicates with the browser. Selenium describes WebDriver as driving browsers natively, either locally or through Selenium Server. Its documentation characterizes the WebDriver standard as a W3C Recommendation. Selenium WebDriver overview
WebDriver is suited to browser-level work such as navigating pages and interacting with rendered controls. Selenium’s overview also describes WebDriver BiDi, which uses a WebSocket connection for browser events such as network requests and console messages. That is distinct from the command-and-response interaction used in the basic example below.
Set up Python, Selenium, and a browser
This example uses Python 3, the Selenium Python binding, and Google Chrome. Choose the binding that fits your project if you use another language; the import statements and APIs are language-specific, not interchangeable. Selenium’s getting-started material identifies a language binding, browser, and driver as the basic components. Selenium Manager is used by Selenium bindings by default to help manage browser and driver setup, but it cannot guarantee that every machine’s network, permissions, or browser compatibility issues will be resolved automatically. Selenium getting started
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- Install Python 3 if it is not already available.
- Install the Selenium package in the environment for this script:
python -m pip install selenium. - Install or make available a supported browser, such as Chrome. Selenium Manager may handle driver management when you create the session; if browser or driver management fails, review the driver guidance and the error details. Selenium driver location troubleshooting
- Save the code below as
first_selenium.py, then runpython first_selenium.pyfrom that environment.
This creates a local browser session. Selenium can also run against a remote browser through Selenium Server; remote execution changes how the session is created and depends on the server and browser configuration in your environment.
Write a complete first Selenium script
The sample form is provided by the Selenium project. The script creates a session, opens the form, reads the title, locates the text field, types a value, clicks the submit button, waits for the response message, prints it, and quits the browser session.
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait
def main():
driver = webdriver.Chrome()
try:
driver.get("https://www.selenium.dev/selenium/web/web-form.html")
print("Page title:", driver.title)
text_input = driver.find_element(By.NAME, "my-text")
text_input.send_keys("Selenium WebDriver")
driver.find_element(By.CSS_SELECTOR, "button").click()
message = WebDriverWait(driver, 10).until(
EC.visibility_of_element_located((By.ID, "message"))
)
print("Result:", message.text)
finally:
driver.quit()
if __name__ == "__main__":
main()The official first-script example demonstrates the same form and basic sequence using name, CSS selector, and ID locators. This version uses a condition-specific explicit wait for the result rather than relying on a global lookup delay. Selenium first script
What each action does
webdriver.Chrome()starts a Chrome session and returns a driver object for issuing commands.driver.get(...)navigates to the form.driver.titlereads the current document title.find_element(By.NAME, "my-text")finds the text field by its name attribute;send_keys()types into it.find_element(By.CSS_SELECTOR, "button")finds the button using a CSS selector;click()activates it.WebDriverWait(...).until(...)waits for the result element to become visible before reading its text.- The
finallyblock callsquit()even if an earlier step raises an exception, closing the session and browser started by this script.
Choose locators that identify the intended element
A locator answers “which element?” It does not prove that the element is ready for the next interaction. Prefer identifiers tied to the page’s intended structure, such as a stable ID or name, when available. CSS selectors can target attributes, classes, or structure, but a broad selector such as button can match the wrong control if the page has multiple buttons. Selenium’s locator documentation explains the available strategies. Selenium element locators
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The example uses the sample page’s name, button selector, and message ID. On a different site, inspect the page and choose a locator that uniquely selects the control. If the page renders the element later, locate it through a wait for the relevant condition rather than assuming it exists immediately.
Wait for the state your next action needs
A navigation command returning does not necessarily mean a dynamic application has finished rendering the specific control your script needs. Selenium’s waiting guidance treats synchronization with application state as a common browser-automation challenge. Use an explicit wait when you know what condition must be true before proceeding. Selenium waiting strategies
Explicit waits: condition-specific
WebDriverWait(driver, 10).until(condition) repeatedly checks a condition until it succeeds or the timeout is reached. In the first script, the condition is that the result element identified by ID is visible. Other expected conditions can wait for presence, clickability, title changes, or other supported states. The timeout is a maximum wait, not a fixed pause: the script continues when the condition succeeds.
Implicit waits: global element-lookup delay
An implicit wait applies to element lookups across the driver session. If a lookup cannot find an element immediately, Selenium keeps trying until the implicit timeout expires. This can be convenient for a broad default, but it does not express a particular application condition such as visibility or clickability.
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Do not casually combine wait types
Selenium warns that mixing implicit and explicit waits can produce unpredictable combined timing. Prefer one clear strategy; for this example, the explicit wait states exactly what the next read depends on. The official short first-script demonstration includes an implicit-wait placeholder for simplicity, but a condition-specific explicit wait is a better fit when a particular state must be reached.
Set navigation behavior separately from application waits
Page-load strategy controls when a navigation command returns; it does not establish that a particular dynamically rendered element is ready. Selenium documents three strategies. Selenium browser options
| Strategy | Navigation waits for | What it does not guarantee |
|---|---|---|
normal |
The browser’s load event. | That client-side application work or a specific element is ready. |
eager |
The DOMContentLoaded event. | That all resources or the element needed by the next action are ready. |
none |
Only the initial document download. | That the page is ready for interaction. |
Use the default behavior unless you have a reason to change navigation timing. Whichever strategy you choose, add an explicit wait for the application condition required by the next command.
Useful browser interactions beyond the form
Selenium’s interaction examples cover common tasks such as reading the current URL, handling alerts, cookies, frames, and tabs or windows. These operations extend the same pattern used above: identify the browser or page state, perform the appropriate action, then wait for or inspect the resulting state. Selenium browser interactions
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Read the current URL
Use driver.current_url when you need to inspect where navigation ended. It is useful alongside driver.title for checking that a navigation reached the expected page.
Handle JavaScript alerts
Switch to the alert before accepting, dismissing, or reading it. If an alert appears asynchronously, wait for its presence rather than assuming it is immediately available.
Work with cookies
WebDriver exposes cookie operations through the active browser session. Cookie availability is scoped to the current browsing context and domain rules; navigate to the relevant site before interacting with its cookies.
Switch into a frame
Elements inside an iframe are not located from the top-level document until the driver switches into that frame. Switch to the frame first, perform the interaction, and switch back to the default content when finished.
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Manage tabs and windows
When an action opens another tab or window, inspect the available window handles and switch to the one you need before locating its elements. Close or switch away from secondary windows deliberately so later commands target the intended context.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshoot common first-script failures
- Driver or browser startup fails: Check that Python and Selenium are installed in the environment running the script, that a compatible browser is available, and that the error is not caused by network access or permissions needed for Selenium Manager. Consult Selenium’s driver location troubleshooting guidance if the browser driver cannot be located.
NoSuchElementException: Confirm the page loaded the expected content, the locator matches the current page, and the element is in the current frame or window. If it appears after client-side rendering, wait for its presence or visibility.TimeoutExceptionfrom an explicit wait: Verify that the expected state can occur, that the locator is correct, and that the page is in the right context. Increase the timeout only when the application legitimately needs more time; a longer timeout will not fix a wrong locator or a state that never occurs.- Click or typing fails because the element is not ready: Wait for a condition such as clickability or visibility, and check whether an overlay or different page state is blocking the intended interaction.
- The script ends but browser processes remain: Ensure session cleanup runs through
driver.quit(), preferably in afinallyblock as shown.quit()closes the session; it is different from closing only the current window. - It works locally but not remotely: Local and remote sessions have different browser and driver environments. Check the remote Selenium Server configuration, requested capabilities, browser availability, and network reachability from the machine running the test.
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Frequently Asked Questions
Can Selenium WebDriver run without opening a visible browser window?
Yes. Selenium browser options can configure a browser for headless operation; the exact option is browser-specific. Consult the relevant Selenium driver options documentation for the browser you use.
Does Selenium Manager remove the need to install a browser?
No. Selenium’s getting-started guidance still identifies a browser as a setup component. Selenium Manager helps manage browser and driver setup through the bindings, but it does not eliminate every browser, network, or permissions prerequisite.
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