Week 14 Tuesday Review

Question 1

How do you open a file (named strings.txt) for append mode in python?

Accepted Answer

with open(filename, “a”) as file:

Question 2

What command is used to write to a file (named strings.txt)

Accepted Answer

file.write(#whatever needs to be written)

Question 3

Which of these array functions can you use to count the number of objects in a list?

Accepted Answer

len(list)

Question 4

Which of these is not a built in string function?

Accepted Answer

str.caps()

Question 5

Which of these statements will print odd numbered items from the first 10 items in a list?

Accepted Answer

print(list[1:10:2])

Question 6

You have an incoming data file where each line is formatted as firstname::age, find the age.

Accepted Answer

for line in file: line[line.find(“::”):]

Question 7

Given the array : lst = [“hello”, “goodbye”, “martian”], what is lst[1][4]?

Accepted Answer

“b”

Question 8

What is the result of condition = ((True and True) or False )and not False?

Accepted Answer

true

Question 9

Name the structure built for error handling.

Accepted Answer

Try/Except

Question 10

Which of these string functions will be useful for making case-insensitive comparisons?

Accepted Answer

str.upper()

Question 11

Which statement will print only the first 10 items in a list?

Accepted Answer

print(list[0:10])

Questions 11