Python MAGES

Question 1

How do you convert this to a string?

x = 50

Answer 1

x = str(x)

Question 2

How do you convert this to an integer?

x = “20”

Answer 2

x = int(x)

Question 3

How do you convert this to a float?

x = “20”

Answer 3

x = float(x)

Question 4

How to check if it x an int?

x = “hello”

Answer 4

if type(x) == int:
print(“I am an integer!”)

Question 5

How do you add 5 to x?

x = 3

Answer 5

x = x + 3

Question 6

How to check if it x a string?

x = “hello”

Answer 6

if type(x) == str:
print(“I am a string!”)

Question 7

How to ask the user for an input and assign it to x?

Answer 7

x = input()

Question 8

How to ask the user for an input with a question and assign it to x?

Answer 8

x = input(“Type something here: “)

Question 9

What is the value of x here?

x = 2**3

Answer 9

** is the exponent operator. It is the “to the power of” operator.

23 is 222 which equals to 8

Question 10

What is the value of x here?

x = 10 // 3

Answer 10

// is the floor operator. It will return you only the part before the decimal point.

10 divided by 3 will give you 3.3333…, so 10//3 will give you 3.

Question 11

How to check if x is equal to 20?

x = 5

Answer 11

if x == 20:
print(“x is equals to 20!”)

Question 12

How to check if x is NOT equal to 20?

x = 5

Answer 12

if x != 20:
print(“x is NOT equals to 20!”)

Question 13

How to check if x is less than 20?

x = 5

Answer 13

if x < 20:
print(“x is less than 20!”)

Question 14

How to check if x is more than 20?

x = 5

Answer 14

if x > 20:
print(“x is more than 20!”)

Question 15

How to check if x is more than or equals to 20?

x = 5

Answer 15

if x >= 20:
print(“x is more than or equals to 20!”)

Question 16

How to check if both x and y are more than 20?

x = 5
y = 25

Answer 16

if x > 20 and y > 20:
print(“x and y are more than 20!”)

Question 17

How to check if either x or y are more than 20?

x = 5
y = 25

Answer 17

if x > 20 or y > 20:
print(“either x or y are more than 20!”)

Question 18

How to create an empty list x?

Answer 18

x = []

Question 19

How to create a list that already contains 3 items?

Answer 19

x = [‘a’, ‘b’, ‘c’]

Question 20

How to add to a list?

x = [‘a’, ‘b’, ‘c’]

Answer 20

x.append(‘d’)

Question 21

How to get only the first 3 from the list?

x = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’]

Answer 21

y = x[:3]

Question 22

How to get the 3rd item from the list?

x = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’]

Answer 22

y = x[2]

Question 23

How to get the index number 4 from the list?

x = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’]

Answer 23

y = x[4]

Question 24

How to get a copy of a list?

x = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’]

Answer 24

y = x[:]

Question 25

How to loop through a list?

x = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’]

Answer 25

for i in x:
print(i)

Question 26

How to sort a list alphabetically?

x = [‘a’, ‘d’, ‘c’, ‘e’, ‘b’]

Answer 26

x.sort()

Question 27

How to reverse a list order?

x = [‘a’, ‘d’, ‘c’, ‘e’, ‘b’]

Answer 27

x.reverse()

OR

x.sort(reverse=True)

Question 28

How to get the reverse of a list without changing the original list?

x = [‘a’, ‘d’, ‘c’, ‘e’, ‘b’]

Answer 28

y = x.copy()
y.sort()

Question 29

How to create a list of lists?

Answer 29

Example:

tic_tac_toe = [
[‘X’, ‘X’, ‘O’],
[‘X’, ‘O’, ‘X’],
[‘O’, ‘O’, ‘X’]
]

Question 30

How to get the middle of this list of lists?

tic_tac_toe = [
[‘X’, ‘X’, ‘O’],
[‘X’, ‘O’, ‘X’],
[‘O’, ‘O’, ‘X’]
]

Answer 30

tic_tac_toe[1][1]

Which will give you ‘O’

Question 31

How to create an empty dictionary?

Answer 31

x = {}

Question 32

How to create a dictionary with 2 keys and 2 values?

Answer 32

x = {
“name”: “David”,
“age”: 20
}

Question 33

How to access the key “age” of this dictionary?

x = {
“name”: “David”,
“age”: 20
}

Answer 33

y = x[“age”]

print(y) # if you want to display it

Question 34

How to add a new key-value pair to this dictionary?

x = {
“name”: “David”,
“age”: 20
}

Answer 34

x[“hobby”] = “golfing”

Question 35

How to delete the “age” key-value pair in this dictionary?

x = {
“name”: “David”,
“age”: 20
}

Answer 35

del x[“age”]

Question 36

How to create a function called func_1 that accepts no arguments?

Answer 36

def func_1():
print(“hello”)

Question 37

How to create a function called func_1 that accepts 2 arguments?

Answer 37

def func_1(a, b):
print(a)
print(b)

Question 38

How to create a function called func_1 that accepts 2 arguments, one of them with a default value?

Answer 38

def func_1(a, b = “default value”):
print(a)
print(b)

Question 39

How to call this function?

def func_1(a, b):
print(a)
print(b)

Answer 39

func_1(“hello”, “byebye”)

Question 40

How to call this function?

def func_1():
print(“hello”)

Answer 40

func_1()

Question 41

How to check if something exists in a list?

comments = [
‘a’]

Answer 41

if ‘You

Question 42

How to check if something exists in a list?

comments = [
‘a’]

Answer 42

if ‘You

Question 43

How to check if something exists in a list?

x = [‘a’, ‘d’, ‘c’, ‘e’, ‘b’]

Answer 43

if ‘d’ in x:
print(‘d exists!’)

Question 44

How to check if something is a list?

ini_list1 = [1, 2, 3, 4, 5]
ini_list2 = ‘12345’

Answer 44

if type(ini_list1) is list:
print(“your object is a list”)
else:
print(“your object is not a list”)

if type(ini_list2) is list:
print(“your object is a list”)
else:
print(“your object is not a list”)

Question 45

How to create an empty tuple?

Answer 45

x = ()

Question 46

How to create a tuple with 3 values inside?

Answer 46

x = (‘a’, ‘b’, ‘c’)

Question 47

How to edit this tuple?

x = (‘a’, ‘b’, ‘c’)

Answer 47

Trick question! A tuple cannot be edited/mutated.

Question 48

How to check if x is between 10 and 20?

x = 15

Answer 48

if 10 < x < 20:
print(‘Between 10 and 20!’)

Question 49

How to create a new list with only the ‘b’, ‘c’ and ‘d’ in this list?

x = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’]

Answer 49

y = x[1:4]

Question 50

How to get the last item in this list?

x = [‘a’, ‘b’, ‘c’, ‘d’, ‘e’]

Answer 50

y = x[-1]

Question 51

How to write a single line comment in Python?

Answer 51

this is my comment

Question 52

How to write a single line comment in Python on the same line as a code?

Answer 52

x = 10 # this is a comment

Question 53

How to write a multi line comment in Python?

Answer 53

’'’This is a multi
Line comment.
It’s not really a comment
but it behaves like one.
‘’’

Question 54

How to print out all the keys in this dictionary?

x = {
“name”: “David”,
“age”: 20
}

Answer 54

y = x.keys()
print(y)

Question 55

How to print out all the values in this dictionary?

x = {
“name”: “David”,
“age”: 20
}

Answer 55

y = x.values()
print(y)

Question 56

How to check if x is an even number?

x = 6

Answer 56

if x % 2 == 0:
print(“x is even!”)