Python Chapter 5: Introduction to Programming with User Input
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Questions and Answers

What will happen if the user enters a non-numeric value in the program?

  • The program will display an error message and continue
  • The program will calculate the average ignoring the non-numeric value
  • The program will terminate with a runtime error (correct)
  • The program will ask for the input again

What is the purpose of the eval function in the program?

  • To prompt the user to enter a number
  • To convert the user's input into a numeric value (correct)
  • To display the result of the calculation
  • To calculate the average of the three numbers

Why can the print statement be split across two lines?

  • Because Python scans the statement and knows it is not finished until it finds the closing parenthesis (correct)
  • Because the print statement is a special case
  • Because Python allows multiple statements on one line
  • Because Python automatically adds a semicolon at the end of the line

What are the characters that can be part of an identifier in Python?

<p>Letters, digits, and underscores (A)</p> Signup and view all the answers

What is the restriction on the starting character of an identifier in Python?

<p>It must start with a letter or an underscore (A)</p> Signup and view all the answers

What is the purpose of the import keyword in Python?

<p>To import a module to the program (A)</p> Signup and view all the answers

What is the term used to describe the words that have special meanings in Python?

<p>Keywords (A)</p> Signup and view all the answers

What is the maximum length of an identifier in Python?

<p>It can be of any length (C)</p> Signup and view all the answers

What is the term used to describe the implicit joining of multiple lines in Python?

<p>Implicit joining (D)</p> Signup and view all the answers

What is the result of the expression (number1 + number2 + number3) / 3?

<p>The average of the three numbers (D)</p> Signup and view all the answers

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