How to open a new window on a browser using Selenium WebDriver for python?

Question

I am attempting to open a new tab OR a new window in a browser using selenium for python. It is of little importance if a new tab or new window is opened, it is only import

Answer 1

How about you do something like this

driver = webdriver.Firefox() #First FF window
second_driver = webdriver.Firefox() #The new window you wanted to open

Depending on which window you want to interact with, you send commands accordingly

print driver.title #to interact with the first driver
print second_driver.title #to interact with the second driver

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For all down voters:

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The OP asked for "it is only important that a second instance of the browser is opened.". This answer does not encompass ALL possible requirements of each and everyone's use cases. The other answers below may suit your particular need.