Python for everybody Week 4 Quiz Answer
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Python Data Structures
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Python Data Structures Week 4 Quiz Answers
Question 1)
Which Python keyword indicates the start of a function definition?
- help
- rad
- break
- def
Question 2)
In Python, how do you indicate the end of the block of code that makes up the function?
- You put a # character at the end of the last line of the function
- You de-indent a line of code to the same indent level as the def keyword
- You add a line that has at least 10 dashes
- You put the colon character (:) in the first column of a line
Question 3)
In Python what is the raw_input() feature best described as?
- A conditional statement
- A data structure that can hold multiple values using strings as keys
- A built-in function
- A reserved word
Question 4)
What does the following code print out?
def thing():
print ‘Hello’
print ‘There’
- thing
- Hello
- There
- def
Question 5)
In the following Python code, which of the following is an “argument” to a function?
- x = ‘banana’
- y = max(x)
- print y
- print x
- y
- x
- max
Question 6)
What will the following Python code print out?
def func(x) :
print x
func(10)
func(20)
- 10
- 20
- y
- x
- func
Question 7)
Which line of the following Python program is useless?
def stuff():
print ‘Hello’
return
print ‘World’
- stuff()
- print ‘Hello’
- def stuff():
- stuff()
- print ‘World’
- return
Question 8)
What will the following Python program print out?</span >
def greet(lang):
if lang == ‘es’:
return ‘Hola’
elif lang == ‘fr’:
return ‘Bonjour’
else:
return ‘Hello’
print greet(‘fr’),’Michael’
- Bonjour Michael
- Hello Michael
- def Michael
- Hola
- Bonjour
- Hello
- Michael
Question 9)
What does the following Python code print out? (Note that this is a bit of a trick question and the code has what many would consider to be a flaw/bug – so read carefully).
def addtwo(a, b):
added = a + b
return a
x = addtwo(2, 7)
print x
- 2
- 9
- addtwo
- Traceback
Question 10
What is the most important benefit of writing your own functions?
- Following the rule that no function can have more than 10 statements in it
- Avoiding writing the same non-trivial code more than once in your program
- To avoid having more than 10 lines of sequential code without an indent or de-indent
- Following the rule that whenever a program is more than 10 lines you must use a function
Week 4 Assignment
4.6 Write a program to prompt the user for hours and rate per hour using raw_input to compute gross pay. Award time-and-a-half for the hourly rate for all hours worked above 40 hours. Put the logic to do the computation of time-and-a-half in a function called computepay() and use the function to do the computation. The function should return a value. Use 45 hours and a rate of 10.50 per hour to test the program (the pay should be 498.75). You should use raw_input to read a string and float() to convert the string to a number. Do not worry about error checking the user input unless you want to – you can assume the user types numbers properly.</b >
python
def computepay(h,r):
if h > 40:
return (40*r)+(h-40)*(r*1.5)</i >
else:
return h*r</i >
hrs = raw_input(“Enter Hours:”)
rate = raw_input(“Enter Rate:”)
hrs = float(hrs)
rate = float(rate)
p = computepay(hrs, rate)
print p