Start with the tutorial here
It's hard to teach you a language in one post, but for specific questions, I or Magnie or one of the other Python programmers will be happy to help.
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I learned mainly from the book Hello World! Programming for kids and other programmers.
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I'll assume Python 3. Ok, print to the screen with print("Whatever you want to print")
Get input with input("What you want to ask")
assign variables with Variable = "What you want the variable to equal"
ask someone else for Python 2 help.
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http://docs.python.org/tutorial/
Helpful tutorial that I am using. A little confusing if you don't know another programming language first though (scratch doesn't count)
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