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18 / 45Debugging and Error MessagesMediumPython Basics

What is the bug in Prasath's code and what error message will be displayed?

student_dict = {"name": "Prasath", "score": 95}
print(student_dict["grade"])

  1. KeyError: 'grade' key does not exist in the dictionary

  2. The code will print 'None' for the missing key

  3. ValueError will occur because the score is too high

  4. The code will print an empty string for the missing key

Show answer & explanation

Correct answer

KeyError: 'grade' key does not exist in the dictionary

Explanation

A KeyError will be raised because the key 'grade' does not exist in the dictionary; only 'name' and 'score' keys are present.

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All 45 Debugging and Error Messages questions

  1. 1.What is the primary purpose of error messages in Python programming?
  2. 2.What type of error occurs when you try to access an index that does not exist in a list?
  3. 3.What does a NameError indicate in Python code?
  4. 4.What kind of error would occur if you divide a number by zero in Python?
  5. 5.What is a syntax error in Python and when is it detected?
  6. 6.What error occurs when you attempt to use a method that doesn't exist on an object?
  7. 7.What type of error occurs when a function receives an argument of the wrong data type?
  8. 8.What does the term 'traceback' refer to in Python error reporting?
  9. 9.What error occurs when trying to convert a string that cannot be converted to a number?
  10. 10.What is the difference between a runtime error and a syntax error?
  11. 11.What does it mean when Python says 'object is not callable'?
  12. 12.What is the purpose of using try-except blocks in Python?
  13. 13.What error occurs when you try to access a key that doesn't exist in a dictionary?
  14. 14.What does the error message 'IndentationError' indicate in Python code?
  15. 15.What is the primary benefit of understanding error messages when debugging Python code?
  16. 16.What will be the output of the following code and what error, if any, will occur?
  17. 17.Predict what error Hari will encounter when running this code and explain why?
  18. 18.What is the bug in Prasath's code and what error message will be displayed?
  19. 19.What error will Ananya encounter in this code and what is the root cause?
  20. 20.What will happen when Vikram runs this code and what error will be displayed?
  21. 21.What is the primary purpose of using try-except blocks in Python error handling?
  22. 22.What will be printed when the following code is executed?
  23. 23.Predict the output of Hari's code that processes a list of numbers with error handling
  24. 24.What type of error occurs when you try to access an index that does not exist in a list?
  25. 25.What will be the output when Prasath runs this code with debugging information?
  26. 26.What is the difference between a syntax error and a runtime error in Python debugging?
  27. 27.Predict what will be printed when Rajesh executes this nested exception handling code
  28. 28.What does the finally block do in Python exception handling?
  29. 29.What will be the output of Ananya's code that uses multiple except blocks?
  30. 30.What is the purpose of the else clause in a try-except-else block?
  31. 31.Predict the exact output when Vikram runs this code with exception chaining and multiple error types
  32. 32.What will be the output when Deepak's code executes with a finally block and exception handling?
  33. 33.What error will be raised when Meera's code attempts to convert an invalid type in a custom validation function?
  34. 34.Predict the output of Sanjay's code that uses exception handling with list comprehension
  35. 35.What will be printed when Arjun's code with nested try-except blocks and exception re-raising executes?
  36. 36.What type of debugging technique is most useful when Pooja needs to trace the exact sequence of function calls that led to an error?
  37. 37.Predict what will happen when Karan's code attempts to handle multiple exception types with a single except clause
  38. 38.What will be the output when Neha's code uses exception handling with dictionary operations and type checking?
  39. 39.Predict the output of Rohit's code that demonstrates the difference between catching specific and general exceptions
  40. 40.What is the best practice when debugging code to understand what values variables hold at different execution points?
  41. 41.What is the primary purpose of error messages in Python debugging?
  42. 42.Predict what error message Hari will see when executing the following code?
  43. 43.What type of error will Prasath encounter when running this code, and what does it indicate?
  44. 44.Debug the following code that Arun wrote and identify what error will occur and how to fix it?
  45. 45.What will be the output and error message when Meera runs this code that attempts to access a list index?