input and raw_input

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raw_input() was renamed to input()

In Python 2 raw_input() returned the raw string. input(), on the other hand ran eval(raw_input()) which meant it tried to execute the input string as a piece of Python code. This was dangerous and was not really used.

In Python 3 raw_input() is gone. input() behaves as the old raw_input() returning the raw string. If you would like to get the old, and dangerous, behavior of input() you can call eval(input()).