PCEP Jeopardy

Python math

100

9 / 2

4.5

200

9 // 2

4

300

2 ** 2 ** 3

256 (2 to the (2 to the 3))

400

When dividing a float by an int, what data type will the result be?

float

500

3 % 17

3

Python syntax

100

Which is an invalid variable name?

python

for

For

false

for

(false is a valid variable name... False is not)

200

You can always use the comma to chain together variables in a print statement, like print("Your score is", score)

When can you also use a plus (+) to do the same?

When all variables involved are strings

300

A function is defined with the signature below:

def my_fun(var1, var2)

How should it be rewritten so that var2 has a default value of 6?

def my_fun(var1, var2=6)

400

What is printed by the following code snippet?

n = 3

n **= 2

print(n)

9

Same thing as:

n = 3

n = n ** 2

print(n)

500

What is the syntax for creating a tuple called "bear_creek" which holds the values "K-8" and "High School"?

bear_creek = ("K-8", "High School")

Bools and bits

100

Evaluate both:

False and False

False or (True or False)

False and False == False

False or (True or False) == True

200

What are the symbols for the following bitwise operations:

and

or

xor

not

left shift

and: &

or: |

xor: ^

not: ~

left shift: <<

300

6 in binary is 0000 0110. What is ~6 in binary?

1111 1001

400

Complete the xor table:

1 xor 1 ==

1 xor 0 ==

0 xor 1 ==

0 xor 0 ==

1 xor 1 == 0 (False)

1 xor 0 == 1 (True)

0 xor 1 == 1 (True)

0 xor 0 == 0 (False)

500

What effect does left shifting (<<) have on a number's value?

Multiplies the number by 2 for every bit shifted

Loops and lists

100

What are the two prevailing types of loops in Python, and what are they each used for?

for loops: when the number of iterations is known

while loops: when the end condition is known

200

How do lists differ from dictionaries?

Lists are indexed with integers, dictionaries can be indexed with strings or other data types.

300

What will print?

my_list = ['a', 'b', 'c', 'd', 'e']

print(my_list[::2])

['a', 'c', 'e']

400

What's the difference between the .append() and .insert() methods for lists?

.append() adds an element to the end of the list, .insert() can add elements anywhere in a list

500

In Python, a non-ordered, non-repetitive collection of items is known as what?

A set

Potpourri

100

What data type is returned by the input() function?

A string

200

What does the "break" keyword do in a loop?

Exits the loop even if it hasn't completed

300

What will be printed by the following line of code?

print("Z" * 3)

"ZZZ"

400

What does a "try/except" block allow a programmer to do?

Anticipate errors and prevent the program from crashing when they're encountered

500

Where did Python get its name?

Monty Python's Flying Circus