Configure vim for python

First important stuff after installation of ubuntu:

 sudo apt-get install vim python python-pip python-virtualenv git-core bash-completion  

Create in a home directory config for vim

 $touch ~/.vimrc  

or open global config to apply settings for all

 $sudo vim /etc/vim/vimrc  

and add the following parameters to this files.

 autocmd FileType python set omnifunc=pythoncomplete#Complete  
 autocmd FileType javascript set omnifunc=javascriptcomplete#CompleteJS  
 autocmd FileType html set omnifunc=htmlcomplete#CompleteTags  
 autocmd FileType css set omnifunc=csscomplete#CompleteCSS  
 autocmd FileType xml set omnifunc=xmlcomplete#CompleteTags  
 autocmd FileType php set omnifunc=phpcomplete#CompletePHP  
 autocmd FileType c set omnifunc=ccomplete#Complete  

Good how-to in russian 

Selenium with python

First of all ensure that python is installed on your PC.
Or you can download it from python.org, use v.2.7.
On ubuntu just run the following commands in terminal:

 $sudo apt-get install python python-setuptools  
 $sudo easy_install pip  
 $pip install selenium  

On windows install python and setup tools from windows installers:
python-2.7.3.msi
setuptools-0.6c11.win32-py2.7
Add PYTHONPATH to envirenmonet variables

 c:>easy_install pip  
 c:>pip install selenium  

Run python interpreter and check that all stuff was installed correctly:

 >python  
 >from selenium import webdriver #import selenium webdriver library  
 >browser = webdriver.Firefox() #start firefox  
 >browser.get('www.qa-notes.blogspot.com')  

You can explore all available methods by using the following command interactively:

 >for method in dir(webdriver): print(method)  

Then you can look at help by:

 >help(webdriver.<methodname>)  

Selenium Python API here selenium-python API
If you want to write robust and maintainable test, you can use 'unittest' module with webdriver
For example:

 import unittest  
 from selenium import webdriver  
 class firstTestSuiteTest(unittest.TestCase):  
   """initialize some stuff here"""  
   def setUp(self):  
     self.browser = webdriver.Firefox()  
   """clean some stuff here after each test"""  
   def tearDown(self):  
     self.browser.close()  
   """each test methods' name should be start with 'test_'"""  
   def test_PasswordValidation(self):  
     browser = self.browser  
     browser.get(URL + 'sing-up')  
     pwdbox = browser.find_element_by_id('passord')  
     pwdbox.sendkeys(pwdGenerator())  
     pwd.click()  
     self.assertIn "Incorrect passowrd", errorMessage  
 suite1 = unittest.TestLoader().loadTestsFromTestCase(firstTestSuiteTest)  
 suite2 = ....  
 suiteN = ....  
 """Prepare all suites all together"""  
 """  
 To skip some tests use anotations before method definition, e.g  
 @unittest.skip("demonstrating skipping")  
 def test_ThisTestWillBeSkipped(self):  
   Blah Blah Blah  
 """  
 fullTest = unittest.TestSuite([suite1, suite2, ..., suiteN])  
 unittest.TextTestRunner(verbosity=2).run(fullTest)