![]() However, this is actually unnecessary because you can perform this task much more easily with an argument in the raw_input() function in Python 2. This writes your message to the user in the print function before the raw_input() function, as shown above. This was done by accessing future enhancements via the _future_ library. In the above example, we did this in Python 2 without adding an '\n' (end line character) in the printed message, by using the print function from Python 3. > from _future_ import print_function # Access Python 3 print function in Python 2 The print statement can be used to inform the user that they have to input some value: > # Python 2 If the user is not instructed that the program is waiting for them to type in an input, they may think the program is hanging or that it crashed. The key thing to remember is that raw_input() always returns a string, even if the user types in other types of values, such as a number: > # Python 2 In the third line of the code above, the raw_input() function prompts the user to type a value and stores that value as a string in the variable fruit. The most common way to use this function is to assign its result to a variable, and then perform some actions with that data: > # Python 2 This function prompts the user to type in some text at the command line and returns that text as a string. Python 2 included the built-in function raw_input(), to get to prompt command-line users for a user input string. We will look at what changed in Python 3 and discuss why these changes were made. In this article, we will review how to accept user input in Python 2 and Python 3. ![]() This can make it confusing for developers to track down the correct method to use for user input in Python command-line programs. These included changes to user input functions. However, when Python 2 was superseded by Python 3, major changes were made. ![]() Python has included this functionality for many years. This user-supplied input can then be stored in a variable in the code and used in the program's flow. The websites and apps that we use every day offer many ways to interact with them, often allowing users to supply their own input in various ways.įor programs that run on the command-line, programming languages typically offer a way to prompt the user to supply some typed input. User interaction is an essential part of many programs. Why was the original input() removed from Python?.
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