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Computer Engineering
The following program has a bug. What is it? def get data(ifile): myList = ] %3D for line in ifile: myList.append(line.rstrip() ifile.close() return myList def main(): inFile = open("data.txt", 'r') %3D get_data(inFile) for i in range(len(myList)): print(list[i])

The following program has a bug. What is it? def get data(ifile): myList = ] %3D for line in ifile: myList.append(line.rstrip() ifile.close() return myList def main(): inFile = open("data.txt", 'r') %3D get_data(inFile) for i in range(len(myList)): print(list[i])

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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The following program has a bug. What is it? def get data(ifile): myList = 0 for line in ifile: myList.append(line.rstrip() ifile.close() return myList def main(): inFile = open("data.txt", 'r') get_data(inFile) for i in range(len(myList)): print(list[i]) main() O main() does not save the list that get_data() returns; instead it tries to access myList, which is local to get_data() and not defined in main(). In get_data(), the code is trying to append a string to a list. OIn get_data(), the for-loop doesn't read anything from the file. O get_data() strips newlines from the end of each line, so main() will print all the data on one line. O The main() function should not open data.text; it should pass the filename to get_data().
Transcribed Image Text:The following program has a bug. What is it? def get data(ifile): myList = 0 for line in ifile: myList.append(line.rstrip() ifile.close() return myList def main(): inFile = open("data.txt", 'r') get_data(inFile) for i in range(len(myList)): print(list[i]) main() O main() does not save the list that get_data() returns; instead it tries to access myList, which is local to get_data() and not defined in main(). In get_data(), the code is trying to append a string to a list. OIn get_data(), the for-loop doesn't read anything from the file. O get_data() strips newlines from the end of each line, so main() will print all the data on one line. O The main() function should not open data.text; it should pass the filename to get_data().
The following input validation code has a bug. What is it? (Line numbers are not part of the code.) 1. again = True 2. while again: 3. try: 4. userChoice = int(input("Please enter your choice (1-5): ") %3D 5. if userChoice >= 1 or userChoice <= 5: 6. again = False 7. else: 8. print("That is not a valid number.") 9. except ValueError: 10. print("That is not a number.") In line 9, the except statement should say except IntError. O Line 1 should be again = False. O In line 5, the or should be an and. O Line 4 should not convert to an int. In line 6, again = False should be again == False.
Transcribed Image Text:The following input validation code has a bug. What is it? (Line numbers are not part of the code.) 1. again = True 2. while again: 3. try: 4. userChoice = int(input("Please enter your choice (1-5): ") %3D 5. if userChoice >= 1 or userChoice <= 5: 6. again = False 7. else: 8. print("That is not a valid number.") 9. except ValueError: 10. print("That is not a number.") In line 9, the except statement should say except IntError. O Line 1 should be again = False. O In line 5, the or should be an and. O Line 4 should not convert to an int. In line 6, again = False should be again == False.
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