python test

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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"

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.

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(a) True

(b) False

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____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)

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

a) range(5)

b) range(1,5)

c) range(10,0,-1)

5. Explain the difference between the "pass" statement and the "continue" statement as

they relate to loops.

6. Give the output of the following code:

for letter in "Python":

if letter == "t":

continue

print "Current Letter : ", letter

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7. Give the output of the following code.

x = 1

while x


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Short answer points vary

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

forget comments!):

7

Count = 8

x = 1

Y NCount


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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"

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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"

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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 valueless than 0 is input. The program should print only one statement similar to

"You put in 6 values between 3 and 27."

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

forget comments!):

Problem: Count the number of times an input from the user via the keyboard is a realnumber 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."

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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)

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