Python Input and Output Quiz

1. What will be the output of print('[%c]' % 65)

2. To take multiple space-separated inputs (e.g., 10 20 30) from a single line and convert them to integers in a list, which combination of methods is typically used?

3. Which file mode would you use to add new content to the end of an existing file without deleting its current content?

4. What is the purpose of the flush=True argument in the print() function?

5. What will be the content of output.txt after this code runs?

# Assuming output.txt does not exist or is empty initially
with open("output.txt", "w") as f:
    f.write("First line\n")
    f.write("Second line")

6. What is the output of the following print() function

print(sep='--', 'Ben', 25, 'California')

7. What will be the output of the following Python code?

print("The value is: {:0.2f}".format(12.3456))

8. Which standard library module is commonly used to “pretty print” complex data structures like dictionaries and lists in a more human-readable, indented format?

9. What is true for file mode 'x'

Hint: Create File in Python

10. What is the output of the following print() function

print('Mike', 'Sydney', sep='**')

11. What will be the output if the user types abc when prompted?

try:
    num = int(input("Enter a number: "))
    print(f"Number: {num}")
except ValueError:
    print("Invalid input!")
except TypeError:
    print("Type error!")

12. Use the following file to predict the correct output of the code

test.txt Content:

aaa
bbb
ccc
ddd
eee
fff
ggg

Code:

f = open("test.txt", "r")
print(f.readline(3))
f.close()

Hint: Read file in Python.

13. Assume nums.txt contains:

12345

What will be the output of the following Python code?

with open("nums.txt", "r") as f:
    f.read(2)
    print(f.read(1))

14. In Python3, Whatever you enter as input, the input() function converts it into a string

15. What is the recommended way to ensure a file is properly closed after you’re done with it, even if errors occur?

16. Which method is used to read all lines from a file into a list of strings, where each string represents a line?

17. Which of the following is incorrect file handling mode in Python

18. What exception is typically raised when the input() function encounters an End-of-File (EOF) condition (e.g., when reading from a redirected file and there’s no more data)?

19. Which mode should you use to open a file for writing, overwriting its contents if it already exists?

20. In Python 3, which functions is used to accept input from the user

21. What will be the output of  print('%x, %X' % (15, 15))

22. What will be the output of the following Python code?

print("Line 1", end="***")
print("Line 2")

23. Input/Output Code Output Prediction (File I/O Scenario):

Assume data.txt contains:

Line 1
Line 2
Line 3

What will be the output of the following Python code?

with open("data.txt", "r") as f:
    first_line = f.readline()
    second_line = f.readline()
print(second_line.strip())

24. How can you redirect the output of a print() statement to a file instead of the console?

25. What is the primary advantage of using f-strings (formatted string literals) for output in Python 3.6+?