Python 1 2

Question 1

What does one row represent in a tabular dataset?

Answer 1

a single item/observation in your collection

Question 2

What does one column represent in a tabular dataset?

Answer 2

a single piece of information

Question 3

What shape does tabular data take?

Answer 3

a rectangle

Question 4

What’s the difference between = and == in Python?

Answer 4

= assigns a value to a variable, == tests whether two items are the same

Question 5

How do you write a multi-line string in Python?

Answer 5

””” wrap it in three quotes “””

Question 6

How do you write a comment in Python?

Answer 6

#

Question 7

What are the rules for Python variable names?

Answer 7

can use any upper/lowercase character, number, or _

Question 8

What is the function to check what Python type something is?

Answer 8

type

Question 9

How would you make a string with ‘my qb is Tom Brady’ using f strings if ‘Tom Brady’ was in a variable called name?

Answer 9

f’my qb is {name}’

Question 10

(Python) What type of a variable is (1 == 2)?

Answer 10

bool

Question 11

(Python) What is the value of (1 == 2)?

Answer 11

FALSE

Question 12

(Python) What is the difference between variables and strings in terms of quotation marks?

Answer 12

strings always have quotation marks; variables never do

Question 13

(Python) How would you refer to the first element in a list named my_list?

Answer 13

my_list[0]

Question 14

(Python) How would you refer to the last element in a list named my_list?

Answer 14

my_list[-1]

Question 15

(Python) How would you refer to the first two elements in a list named my_list?

Answer 15

my_list[0:2]

Question 16

(Python) What is the name for the part in brackets in my_list[0:2]?

Answer 16

a slice

Question 17

(Python) How many items does my_list[:n] return?

Answer 17

n

Question 18

(Python) What is a list surrounded by?

Answer 18

square brackets

Question 19

What is a Python dict?

Answer 19

a collection of key, value pairs

Question 20

(Python) What is a dict surrounded by?

Answer 20

curly brackets

Question 21

(Python) How would you access 1 in my_dict = {‘a’: 1, ‘b’: 2}?

Answer 21

my_dict[‘a’]

Question 22

(Python) How would you change ‘a’ to 0 in my_dict = {‘a’: 1, ‘b’: 2}?

Answer 22

my_dict[‘a’] = 0

Question 23

(Python) How would you add a new item ‘c’ = 3 in my_dict = {‘a’: 1, ‘b’: 2}?

Answer 23

my_dict[‘c’] = 3

Question 24

What is a loop in Python?

Answer 24

a way to do something for every item in a collection

Question 25

(Python) What does this code do? for x in my_roster_list: print(x)

Answer 25

prints the values of my_roster_list

Question 26

(Python) What is the default behavior when looping over a dict?

Answer 26

to loop over the keys only

Question 27

(Python) What do you have to your dict to loop over the key and value in a dict?

Answer 27

.items()

Question 28

When want to modify one list to get another list you should be thinking what?

Answer 28

a list comprehension

Question 29

(Python) What is the general form of a list comprehension?

Answer 29

[… for … in … if …]

Question 30

(Python) How would you turn mylist = [‘a’, ‘b’, ‘c’] into [‘A’, ‘B’, ‘C’] using list comprehensions?

Answer 30

[x.upper() for x in mylist]

Question 31

(Python) What would type([x*2 for x in [1, 2, 3]) return?

Answer 31

list

Question 32

(Python) What is [x*2 for x in [1, 2, 3]] called?

Answer 32

list comprehension

Question 33

(Python) How would you turn mydict = {‘a’: 1, ‘b’: 2} into {‘A’: 2, ‘B’: 4} using a dict comprehension?

Answer 33

{key.upper(): value*2 for key, value in mydict.items()}

Question 34

(Python) How would you turn mydict = {‘a’: 1, ‘b’: 2} into a list [1, 2] using list comprehensions?

Answer 34

[x for _, x in mydict.items()]

Question 35

What is the keyword to create a function in Python?

Answer 35

def

Question 36

(Python) Take the code: def over_100_total_yds(rush_yds, rec_yards): return rush_yds + rec_yards > 100 What are the names of the function arguments?

Answer 36

rush_yds, rec_yards

Question 37

(Python) Take the code: def over_100_total_yds(rush_yds, rec_yards): return rush_yds + rec_yards > 100 What is the function name?

Answer 37

over_100_total_yds

Question 38

What is the function name? over_100_total_yds (Python) Take the code: def over_100_total_yds(rush_yds, rec_yards): return rush_yds + rec_yards > 100 What type does the function return?

Answer 38

bool