“input” function: In Python, the function which is used to read the input from a keyboard is “input()”. • This function reads a piece of input data from a user and returns that piece of data as a string to a program. • The “input” function is normally used for assigning the statement. Reading numbers with the “input” function: • The “input” function always returns the input data as a string, even-though if the user enters the numeric data. • This can be a problem when the user wants to use the value in math operation, because the math operations can be performed only for numeric values, not for strings. • Python has built-in functions such as “int” and “float” which can be used to convert a string to a numeric data type. Syntax: The syntax for “input()” statement is as follows: variable_name = datatype (input (prompt)) Example: Consider the example of “input” function as follows: value = int (input ('Enter the age: ')) Explanation: Here, the statement “'Enter the age: '” is displayed on the output screen. • The user must enter the input data from the keyboard and finally press the Enter key. • After the Enter key is pressed, the “int” function is used to convert the input data into integer datatype and return to the program. • Finally, store it in a variable “value”.

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Chapter 2.6, Problem 18CP

Program Plan Intro

“input” function:

In Python, the function which is used to read the input from a keyboard is “input()”.

• This function reads a piece of input data from a user and returns that piece of data as a string to a program.

• The “input” function is normally used for assigning the statement.

Reading numbers with the “input” function:

• The “input” function always returns the input data as a string, even-though if the user enters the numeric data.

• This can be a problem when the user wants to use the value in math operation, because the math operations can be performed only for numeric values, not for strings.

• Python has built-in functions such as “int” and “float” which can be used to convert a string to a numeric data type.

Syntax:

The syntax for “input()” statement is as follows:

variable_name = datatype (input (prompt))

Example:

Consider the example of “input” function as follows:

value = int (input ('Enter the age: '))

Explanation:

Here, the statement “'Enter the age: '” is displayed on the output screen.

• The user must enter the input data from the keyboard and finally press the Enter key.

• After the Enter key is pressed, the “int” function is used to convert the input data into integer datatype and return to the program.

• Finally, store it in a variable “value”.

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