Python Version 3.9.1 Questions:

1. Which of the following are methods of the file object?

a) Tell

b) size

c) open

d) read

2. Debug the following code

for I in items

print I

3. Debug the following code

if I < 3:

print I

4. What line is necessary in order to use regular expressions?

a) Use regex

b) import re

c) import sys

d) import regex

5. What does the following match?

^(ab)*$

a) fab

b) ababa

c) ab

d) blah

6. What's wrong with the following code?

f = open(file, w)

print f.read()

7. What is the effect of placing a comma at the end of a print statement?

Print this is a test,

8. What is output by the following print command?

Print %d %s %d%(32, hi, 45)

9. Consider the following interactive python example.

>>> info={}

>>> info["ok"]="Oklahoma"

>>> print info["ok"]

10. The variable info is a:

a) Tuple

b) String

c) Array

d) Dictionary

11. Which item is the key?

a) Info

b) ok

c) Oklahoma

d) print

12. Consider the code:

arr=[2,4,6,8,10]

for i in range(len(arr)):

print i * arr[i], " ",

What will be printed?

1. 2 4 6 8 10
2. 10 8 6 4 2
3. 0 4 12 24 40
4. 40 24 12 4 0

13. Consider the code:

arr=[2,4,6,8,10]

for i in range(2, 4):

print arr[i], " ",

What will be printed?

1. 6 8
2. 4 6
3. 4 6 8
4. 6 8 10

14. In Python, the value of a string cannot be modified, but a string variable can be made to refer to a different string value. Because of this property we say that strings are:

a) unchangeable

b) immodifiable

c) immutable

d) static

15. What does the following program print?

import re

p=re.compile("ab")

print p.sub("ee", "rabbit")

16. What does the following program print?

import re

p=re.compile("[to]")

print p.sub("from", "From here to Atoka.")

a) Frfromm here fromfrom Afromfromka.

b) From here from Atoka.

c) To here to Atoka.

d) From here from afromka.