Python input() Function
input() function takes keyboard input from the console. The input() function accepts a standard input data and returns a string type.
If you stumble upon code in the acient Python2.x, it had the method
raw_input(). That doesn't exist anymore, so use
input() at all times.
Related course: Complete Python Programming Course & Exercises
Python input() example.
get string from terminal
The input function returns a string by default, so by calling it you get a text object. Anything returned is of string type (type
>>> name = input("Your name: ") Your name: Shanon >>> type(name) <class 'str'> >>> print(name) Shanon >>>
get integer from console
The input() function returns a string, not any other data type. That means that if you want to read an integer from the console, you have to cast it:
>>> a = input("i: ") i: 5 >>> a '5' >>> type(a) <class 'str'> >>>
str, so if you want an integer, you can do this:
>>> a = int(input("i: ")) i: 146 >>> type(a) <class 'int'>
python input list
You can input a list at once, using the code below. The way this works is by getting string input, then splitting the string based on a character like a comma:
>>> x = input() 1,2,3,4,5,6 # convert input string into list of strings >>> xlist = x.split(",") # output list >>> xlist ['1', '2', '3', '4', '5', '6'] >>>
But everything is over character value (string), you can see that on the quotes. To convert it to int values, you can do this:
>>> xlist = [int(xlist[i]) for i in range(len(xlist))] #for loop, convert each character to int value >>> xlist [1, 2, 3, 4, 5, 6] >>>
The parameters of the
split() function can be any delimiter, including
>>> x=input() 1 2 3 4 # split into list of strings >>> xlist=x.split(" ") # show what we have >>> print(xlist) ['1', '2', '3', '4'] # convert to numbers >>> xlist = [int(xlist[i]) for i in range(len(xlist))] >>> print(xlist) [1, 2, 3, 4]