chapter 5 week 7 Assignment 5.2

5.2 Write a program that repeatedly prompts a user for integer numbers until the user enters 'done'. Once 'done' is entered, print out the largest and smallest of the numbers. If the user enters anything other than a valid number catch it with a try/except and put out an appropriate message and ignore the number. Enter 7, 2, bob, 10, and 4 and match the output below.

Answer:

chapter 5 week 7 quiz

chapter 5 week 7 quiz

Quiz

 

1. What is wrong with this Python loop:
   n = 5
   while n > 0 :
   print(n)
   print('All done')
   1.   This loop will run forever
   2.   The print('All done') statement should be indented four spaces
   3.   There should be no colon on the while statement
   4.   while is not a Python reserved word
2. What does the break statement do?
   
   1.   Exits the program
   2.   Exits the currently executing loop
   3.   Resets the iteration variable to its initial value
   4.   Jumps to the "top" of the loop and starts the next iteration
3. What does the continue statement do?
   
   1.   Exits the program
   2.   Jumps to the "top" of the loop and starts the next iteration
   3.   Exits the currently executing loop
   4.   Resets the iteration variable to its initial value
4. What does the following Python program print out?
   tot = 0
   for i in [5, 4, 3, 2, 1] :
   tot = tot + 1
   print(tot)
   1.   15
   2.   10
   3.   5
   4.   0
5. What is the iteration variable in the following Python code:
   friends = ['Joseph', 'Glenn', 'Sally']
   for friend in friends :
   print('Happy New Year:', friend)
   print('Done!')
   1.   friend
   2.   Glenn
   3.   Sally
   4.   friends
6. What is a good description of the following bit of Python code?
   zork = 0
   for thing in [9, 41, 12, 3, 74, 15] :
   zork = zork + thing
   print('After', zork)
   1.   Find the smallest item in a list
   2.   Count all of the elements in a list
   3.   Sum all the elements of a list
   4.   Find the largest item in a list
7. What will the following code print out?
   smallest_so_far = -1
   for the_num in [9, 41, 12, 3, 74, 15] :
   if the_num < smallest_so_far :
   smallest_so_far = the_num
   print(smallest_so_far)
   Hint: This is a trick question and most would say this code has a bug - so read carefully
   
   1.   -1
   2.   74
   3.   42
   4.   3
8. What is a good statement to describe the is operator as used in the following if statement:
   if smallest is None :
   smallest = value
   1.   Is true if the smallest variable has a value of -1
   2.   The if statement is a syntax error
   3.   Looks up 'None' in the smallest variable if it is a string
   4.   matches both type and value
9. Which reserved word indicates the start of an "indefinite" loop in Python?
   
   1.   for
   2.   break
   3.   while
   4.   def
   5.   indef
10. How many times will the body of the following loop be executed?
    n = 0
    while n > 0 :
    print('Lather')
    print('Rinse')
    print('Dry off!')
    1.   0
    2.   This is an infinite loop
    3.   5
    4.   1

chapter 4 week 6 Assignment 4.6

4.6 Write a program to prompt the user for hours and rate per hour using input to compute gross pay. Pay should be the normal rate for hours up to 40 and time-and-a-half for the hourly rate for all hours worked above 40 hours. Put the logic to do the computation of pay 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 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. Do not name your variable sum or use the sum() function.

Answer:

chapter 4 week 6 quiz

chapter 4 week 6 quiz

Quiz

 

1. Which Python keyword indicates the start of a function definition?
   
   1.   return
   2.   sweet
   3.   continue
   4.   def
2. In Python, how do you indicate the end of the block of code that makes up the function?
   
   1.   You add a line that has at least 10 dashes
   2.   You de-indent a line of code to the same indent level as the def keyword
   3.   You put the colon character (:) in the first column of a line
   4.   You put the "END" keyword in column 7 of the line which is to be the last line of the function
3. In Python what is the input() feature best described as?
   
   1.   A reserved word
   2.   A built-in function
   3.   The central processing unit
   4.   A user-defined function
4. What does the following code print out?
   def thing():
   print('Hello')
   print('There')
   1.   There
   2.   Hello
   3.   Hello
      There
   4.   thing
      Hello
      There
5. In the following Python code, which of the following is an "argument" to a function?
   x = 'banana'
   y = max(x)
   print(y)
   1.   'banana'
   2.   max
   3.   x
   4.   print
6. What will the following Python code print out?
   def func(x) :
   print(x)
   
   func(10)
   func(20)
   1.   x
      20
   2.   func
      func
   3.   x
      10
      x
      20
   4.   10
      20
7. Which line of the following Python program will never execute?
   def stuff():
   print('Hello')
   return
   print('World')
   
   stuff()
   1.   print ('World')
   2.   stuff()
   3.   print('Hello')
   4.   return
   5.   def stuff():
8. What will the following Python program print out?
   def greet(lang):
   if lang == 'es':
   return 'Hola'
   elif lang == 'fr':
   return 'Bonjour'
   else:
   return 'Hello'
   
   print(greet('fr'),'Michael')
   1.   Bonjour Michael
   2.   Hola Michael
   3.   Hello Michael
   4.   def
      Hola
      Bonjour
      Hello
      Michael
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)
   
   1.   2
   2.   14
   3.   addtwo
   4.   7
10. What is the most important benefit of writing your own functions?
    
    1.   Following the rule that no function can have more than 10 statements in it
    2.   Following the rule that whenever a program is more than 10 lines you must use a function
    3.   Avoiding writing the same non-trivial code more than once in your program
    4.   To avoid having more than 10 lines of sequential code without an indent or de-indent