Selenium WebDriver - Maximize window (浏览器窗口最大化)

Selenium WebDriver with python - Maximize window

FireFox : 

         self.driver = webdriver.Firefox()

      self.driver.maximize_window()

Chrome : 

   url = "C:\\Programs\\Python36\\BrowersDriver\\chromedriver.exe"

      options = webdriver.ChromeOptions()
      options.add_argument("--start-maximized")
      self.driver = webdriver.Chrome(url,chrome_options=options)

Selenium: Firefox Profile exception Can't load the profile

I use python to open firefox and redirect to google page but it show empty page and get error. 

This is the Panel constructor:

Traceback (most recent call last):
  File "C:/Users/KennethHu/PycharmProjects/Web_Automation/Hello Selenium.py", line 3, in 
    driver=webdriver.Firefox()
  File "C:\Programs\Python36\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 80, in __init__
    self.binary, timeout)
  File "C:\Programs\Python36\lib\site-packages\selenium\webdriver\firefox\extension_connection.py", line 52, in __init__
    self.binary.launch_browser(self.profile, timeout=timeout)
  File "C:\Programs\Python36\lib\site-packages\selenium\webdriver\firefox\firefox_binary.py", line 68, in launch_browser
    self._wait_until_connectable(timeout=timeout)
  File "C:\Programs\Python36\lib\site-packages\selenium\webdriver\firefox\firefox_binary.py", line 108, in _wait_until_connectable
    % (self.profile.path))
selenium.common.exceptions.WebDriverException: Message: Can't load the profile. Profile Dir: C:\Users\KENNET~1\AppData\Local\Temp\tmp2rghen87 If you specified a log_file in the FirefoxBinary constructor, check it for details.

Solution: 

elenium team fixed in latest version. For almost all environments the fix is:

pip install -U selenium

Unclear at which version it was fixed (apparently r13122), but certainly by 2.26.0 (current at time of update) it is fixed.

http://selenium-python.readthedocs.io/installation.html

You may get Failure like this Failure to observe this step will give you an error 
selenium.common.exceptions.WebDriverException: Message: ‘geckodriver’ executable needs to be in PATH.

Download following driver into your project folder. 

Chrome:	https://sites.google.com/a/chromium.org/chromedriver/downloads
Edge:	https://developer.microsoft.com/en-us/microsoft-edge/tools/webdriver/
Firefox:	https://github.com/mozilla/geckodriver/releases
Safari:	https://webkit.org/blog/6900/webdriver-support-in-safari-10/