Introduction
Python language bindings for Selenium WebDriver.
Theseleniumpackage is used to automate web browser interaction from Python.
-Home:http://www.seleniumhq.org
-Docs:https://seleniumhq.github.io/selenium/docs/api/py/api.html
-Dev:https://github.com/SeleniumHQ/selenium
-PyPI:https://pypi.python.org/pypi/selenium
-IRC:#seleniumchannel on freenode
Several browsers/drivers are supported (Firefox, Chrome, Internet Explorer, PhantomJS), as well as the Remote protocol.
Supported Python Versions
·Python 2.6, 2.7
·Python 3.3+
Installing
If you have pip on your system, you can simply install or upgrade the Python bindings:

pip install -U selenium

Alternately, you can download the source distribution from PyPI (e.g. selenium-3.0.0.b2.tar.gz), unarchive it, and run:

pip install -U selenium

Note: both of the methods described above installseleniumas a system-wide package That will require administrative/root access to their machine. You may consider using a virtualenv to create isolated Python environments instead.
Example 0:
·open a new Firefox browser
·load the page at the given URL

from selenium import webdriver
browser = webdriver.Firefox()
browser.get('http://seleniumhq.org/')

Example 1:
·open a new Firefox browser
·load the Yahoo homepage
·search for “seleniumhq”
·close the browser

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
browser = webdriver.Firefox()
browser.get('http://www.yahoo.com')
assert 'Yahoo' in browser.title
elem = browser.find_element_by_name('p')  # Find the search box
elem.send_keys('seleniumhq' + Keys.RETURN)
browser.quit()

Example 2:
Selenium WebDriver is often used as a basis for testing web applications. Here is a simple example uisng Python’s standard unittest library:

import unittest
class GoogleTestCase(unittest.TestCase):
  def setUp(self):
    self.browser = webdriver.Firefox()
    self.addCleanup(self.browser.quit)
    def testPageTitle(self):
    self.browser.get('http://www.google.com')
    self.assertIn('Google', self.browser.title)
if __name__ == '__main__':
  unittest.main(verbosity=2)

Selenium Server (optional)
For normal WebDriver scripts (non-Remote), the Java server is not needed.
However, to use Selenium Webdriver Remote or the legacy Selenium API (Selenium-RC), you need to also run the Selenium server. The server requires a Java Runtime Environment (JRE).
Download the server separately, from:
http://selenium-release.storage.googleapis.com/3.0-beta2/selenium-server-standalone-3.0.0-beta2.jar
Run the server from the command line:

java -jar selenium-server-standalone-3.0.0-beta2.jar

Then run your Python client scripts.
Use The Source Luke!
View source code online at：
https://github.com/SeleniumHQ/selenium/tree/master/py/