Multiple Choice 2 Points Each Pick the BEST Answer for Each

Test 2 Name______

100 points possible

Multiple Choice – 2 points each – pick the BEST answer for each:

____1.The raw_input command takes the following types of data from the keyboard:

(a)string

(b)integer

(c)float

(d)all of these

____2.The addition of the character "\n" to a string puts the following into the output:

(a)the letter n

(b)a blank line

(c)a new line

(d)a back slash character

____3.In Python a while loop must have several lines of code.

(a)True

(b)False

____4.In Python the two statements below both produce the same result.

print "Hello"

(a)True

(b)False

____5.The Python command: str = raw_input("Type a string: " ).rstrip( "\n" ) would put what into str?:

(a)whatever was typed plus a new line at the end

(b)whatever was typed minus a new line at the end

(c)whatever was typed at the keyboard

(d)whatever was typed minus a new line at the beginning

(e)whatever was typed plus a new line at the beginning

____6.In Python, it is possible to write a loop that never ends.

(a)True

(b)False

____7.All of the following are types of arguments in Python EXCEPT:

(a)default arguments

(b)variable-length arguments

(c)optional arguments

(d)keyword arguments

(e)required arguments

Short Answer – 3 points each

1.Give one reason why using the input statement in Python is unsafe compared to using raw_input.

2. Briefly describe the main difference between the rstrip function and the strip function.

3.Give the output of the following:

name = raw_input("Enter your name: ").strip()

email = raw_input("Enter your email: ").strip()

print"Hello %s!\nThe email address we have for you is %s. " % (name, email)

What list is returned by each of the function calls below?

a)range(5)

b)range(1,5)

c)range(10,0,-1)

Explain the difference between the "pass" statement and the "continue" statement as they relate to loops.

Give the output of the following code:

for letter in "Python":

if letter == "t":

continue

print "Current Letter : ", letter

7.Give the output of the following code.

x = 1

while x<5:

print x

x = x + 1

print x

Give the output of the following code.

x = 1

while x in [1, 3, 5, 7, 9]:

if x == 3:

print "yahoo"

elif x == 7:

print "google"

elif x == 9:

pass

else:

print "maybe"

x = x + 2

Explain the difference between calling a function and defining a function.

Short answer – points vary

1)(10 points total) Write the Python code for the following flowchart (don"t forget comments!):

2) (10 points) Draw a flowchart (either style) for the following code:

def godoit(top):

print "Yea", top

return

junk = 12

for m in range(6):

if m == 5:

print "m is 5"

godoit(m)

else if m > 0:

print junk, " divided by ", m, " is ", junk/m

godoit(m)

else:

print "computers do not like dividing by 0"

3)(9 points) Give the output of the following Python program:

def godoit(top):

print "Yea ", top

return

junk = 12

for m in range(6):

if m == 5:

print "m is 5"

godoit(m)

else if m > 0:

print junk, " divided by ", m, " is ", junk/m

godoit(m)

else:

print "computers do not like dividing by 0"

4)(10 points) Draw a flowchart to solve the following problem:

Problem: Count the number of times an input from the user via the keyboard is a real number between 3 and 27. The user will continue to give input until a value less than 0 is input. The program should print only one statement similar to "You put in 6 values between 3 and 27."

5)(10 points) Write the Python code to solve the following problem (don"t forget comments!):

6)(10 points) Give the output of the following program:

def quench(one, two = 25):

three = one + two

return three

first = 5

second = 10

third = 20

print first, " and ", second, " quenched is = ", quench(first, second)

print quench(third)

print third, " and ", first, " quenched is = ", quench(third, first)

print first + second + quench(third)