Today I enrolled a course on courera, the course is given by Lecturer Charles Severance from University of Michigan. He put Python in a really funny way. He said at the beginning of learning python it could be upseting, cause sometime you come up with a great idea, you are excited, but python only tells you syntax error. You may feel that you make a mistake. But if you put it in another way, Python is just a little dog who don't know much about human language, syntax error is just a expression which tells you it doesn't understand what you said to it. You need to learn its language and so that it could understand. Fortunately, Python is not difficult to learn.

He also established a website PythonLearn - Exploring Data and on this website you can access to his book (also has a Chinese version) and video lecture and other matierials for free. This is so good.