Defining Functions

Task 2 [10 points]:

Objectives:

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  • improving the student’s skills in defining functions;
  • using exceptions in order to provide a safe input environment.

 

Scenario:

Your task is to write a function able to input integer values and to check if they are within a specified range.

The function should:

 

  • accept three arguments: a prompt, a low acceptable limit, and a high acceptable limit;
  • if the user enters a string that is not an integer value, the function should emit the message Error: wrong input, and ask the user to input the value again;
  • if the user enters a number which falls outside the specified range, the function should emit the message Error: the value is not within permitted range (min..max) and ask the user to input the value again;
  • if the input value is valid, return it as a result.

 

Test data:

Test your code carefully. This is how the function should react to the user’s input:

 

Enter a number from -10 to 10: 100

Error: the value is not within permitted range (-10..10)

Enter a number from -10 to 10: asd

Error: wrong input

Enter number from -10 to 10: 1

The number is: 1