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The output is displayed in the Python Shell window.
INPUT AND OUTPUT
Python provides two commonly used functions input() and print() for input and output
respectively.
input() FUNCTION
We use the input() function to take the user’s input while a program is being executed. (This
function also evaluates the expression whether the user has entered a string, number or list right
after receiving input.) The general syntax of the input() function is as follows:
Variable_name = input(<message to be displayed>)
Example:
>>> name = input("Enter your name: ")
Enter your name: Trackpad
By default, Python considers the input as string even if you entered a number as input. You cannot
perform calculations on string. To perform calculations, you need to convert the string into integer
or floating-point value.
To do so, Python provides following functions:
int(): It is used to change the input data value into integer. For example,
a = int(input("Enter a number "))
Now, the entered value is converted into integer value.
float(): It is used to change the input value into floating-point value. For example,
a = float(input("Enter a number "))
Now, the entered value is converted into floating-point value.
print() FUNCTION
We use the print() function to display the result on the screen. The content is written within the
parenthesis. To get the output, follow the given steps:
Step 1 Open the Python Shell window.
Step 2 In front of the command prompt, type print("Hello Students") and press the Enter
key. Do not forget to include the
double quotes (" ").
Step 3 The output is displayed in the
next line in the same Python Shell window.
Introduction to Python 63

