Check whether a string contains letter or not by using isalpha() function. In most of your Python programs you will want to interact with the end-user by asking questions and retrieving user inputs. I can write the function fine, that part is easy. Python | read/take input as an integer (number): Here, we are going to learn how to read input as an integer in Python? Output:  Enter your name:EyehuntHello, Eyehunt, Output: Enter your age: 209You Entered – 209. To convert a Python string to integer, use an inbuilt int () function. Suppose when I take input from the user for some reason, Python takes it and returns it as a string itself. Two input functions of Python are: 1. raw_input () Here is an example of adding tow numbers of given by users. Whole numbers (numbers with no decimal place) are called integers. Here, if user input contains digits only, int () function parses integer otherwise a ValueError is encountered. The data entered by the user will be in the string format. Python has two functions for taking in the input from the user or reads the data that is entered through the console and the result of this can be a string, list, tuple or int, etc which is stored into a variable. Get ready for the new computing curriculum. The input() function gets user input (keyboard) and stores it into variable name.. The user enters tangent of 30 like this: Enter a function and a value: T 30 . Here's one example: >>> str(123) '123' If you have a number in a variable, you can convert it like this: >>> number = 999 >>> number_as_string = str(number) >>> number_as_string '999' As we can see in above program the input() method returns a string that’s why the result stored in sum is 4050 (concatenation of two strings) instead of 90. The print() function shows it to the screen. Today we learned the Basics of python from Python Crash Coursebook (Chapters 5 … This type of conversion can also be done using the float () keyword, as a float value can be used to compute with integers. To convert the string input to integer we use the int() function over the received input. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. Input() function syntax is very simple and easy look at: The input() method reads a line from the console (enter by the user), then converts the line into a string and return it. Your "if idn=str:" is complete nonsense, you really should work through a Python tutorial. To use them as integers you will need to convert the user input into an integer using the int() function. The simplest way to do this is using the basic str(), int(), and float() functions. The method returns the value you passed through int (), represented as an integer. This new function can then be used instead of an input() function whenever we expect the user to enter a whole number. To use them as integers you will need to convert the user input into an integer using the int () function. Then the entered string is send to your application. Output: Enter First number : 3Enter Second number : 36. Also we must use int () function to convert the input string value to integer value. Instead of breaking the complete loop, you can use continue statement to return to the beginning of the loop. After writing the above code (python check if user input is a number or string), Ones you will print then the output will appear as an “ Enter the number: 22 User input is number ”. Here's one example: >>> str(123) '123' If you have a number in a variable, you can convert it like this: e.g. Here is an example of adding tow numbers of given by users. 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