Introduction to Programming Quiz 8

5.0 (2 reviews)
Within the try clause of a try statement, you code ___.
- only the statements that might cause an exception
- all the statements of the program
- a block of the statements that are most likely to cause an exception
- a block of statements that might cause an exception
Click the card to flip 👆
1 / 8
Terms in this set (8)
Within the try clause of a try statement, you code ___.
- only the statements that might cause an exception
- all the statements of the program
- a block of the statements that are most likely to cause an exception
- a block of statements that might cause an exception
a block of statements that might cause an exception
It's a common practice to throw your own exceptions to test error handling routines that ___.
- that handle complexities like lists within lists
- handle many varieties of input
- catch exceptions that are hard to produce otherwise
- provide for many different types of exceptions
catch exceptions that are hard to produce otherwise
Which of the following is the correct way to code a try statement that catches any type of exception that can occur in the try clause?
- try:
number = float(input("Enter a number: "))
print("Your number is: ", number)
- try:
number = float(input("Enter a number: "))
print("Your number is: ", number)
except:
print("Invalid number.")
- try:
number = float(input("Enter a number: "))
print("Your number is: ", number)
else:
print("Invalid number.")
- try:
number = float(input("Enter a number: "))
print("Your number is: ", number)
except ValueError:
print("Invalid number.")
try:
number = float(input("Enter a number: "))
print("Your number is: ", number)
except:
print("Invalid number.")
To throw an exception with Python code, you use the ___.
- throw statement
- raise statement
- build-in raise() function
- built-in throw() function
raise statement
A Python program should use try statements to handle ___.
- only the exceptions related to file and database I/O
- all exceptions that might be thrown by a program
- all exceptions that can't be prevented by normal coding techniques
- all the exceptions that aren't caused by coding errors
all exceptions that can't be prevented by normal coding techniques
To cancel the execution of a program in the catch clause of a try statement, you can use the ___.
- exit() function of the sys module
- cancel() function of the sys module
- the built-in cancel() function
- the built-in exit() function
exit() function of the sys module
Code Example 8-1
import csv
import sys
FILENAME = "names.csv"
def main():
try:
names = []
with open(FILENAME, newline="") as file:
reader = csv.reader(file)
for row in reader:
names.append(row)
except FileNotFoundError as e:
print("Could not find " + FILENAME + " file.")
sys.exit()
except Exception as e:
print(type(e), e)
sys.exit()
print(names)
if __name__ == "__main__":
main()


Refer to Code Example 8-1. If the names.csv file is not in the same directory as the file that contains the Python code, what type of exception will be thrown and caught?
- OSError
- Exception
- FileNotFoundError
- All of the above
FileNotFoundError
If a program attempts to read from a file that does not exist, which of the following will catch that error?
- NameError and OSError
- FileNotFoundError and ValueError
- FileNotFoundError and NameError
- FileNotFoundError and OSError
FileNotFoundError and OSError