In some languages, such as C, displaying to the screen is accomplished with a function, e.g., printf(), while with Python and most interpreted and scripting languages, it is a statement. Many shell script languages use an echo command for program output.
In the following example, we assign a string variable, then use print to display its contents. Following that, we issue just the variable name.
Python's print statement, paired with the string format operator ( % ), supports string substitution, much like the printf() function in C:
Program Input and the raw_input()Built-in Function
The easiest way to obtain user input from the command line is with the raw_input() built-in function. It reads from standard input and assigns the string value to the variable you designate. You can use the int() built-in function to convert any numeric input string to an integer representation.
The earlier example was strictly for text input. A numeric string input (with conversion to a real integer) example follows below:
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