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Input¶

input()¶

The input() function is used for reading users' input from keyboard
Usually, we also pass to input a string argument to be displayed as a prompt to the user

name = input('Please enter your name: ')

age = int(input('Please enter your age: '))

h = float(input('Please enter your height (in meters): '))

print('{:10}{:5d}{:6.2f}'.format(name, age, h))

input() returns 'string' type¶

In Python 3 input returns a string.
So, we need to change the input type accordingly, if we plan to manipulate the input as numerical. This is typically accomplished by using the int() and float() methods.

part = 1000
pers = int(input('Please enter personal expenses: '))
print('Total expenses are: ', part + pers)

How to read two (or more) values from keyboard in a single line¶

(a) Use two input() functions as in the example below (use as many input() functions as names on the left part of the assignment)

scoreA, scoreB = input('Enter score for player A:'), input('Enter score for player B:')
scoreA, scoreB

Enter score for player A:5
Enter score for player B:7

('5', '7')

(b) Use the split() method as you see below
Split() separates the string input we give using as delimiter the character that we give as argument to split() (if none then space is used)

scoreA, scoreB = input('Enter the score of each player (separate with space):').split()
scoreA, scoreB

Enter the score of each player (separate with space):12 15

('12', '15')

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