basics

Question 1

int

Answer 1

Int, or integer, is a whole number, positive or negative, without decimals, of unlimited length.

Question 2

float

Answer 2

Float, or “floating point number” is a number, positive or negative, containing one or more decimals.

Question 3

complex

Answer 3

Complex numbers are written with a “j” as the imaginary part.

Question 4

string

Answer 4

String literals in python are surrounded by either single quotation marks, or double quotation marks.

Question 5

Cast as string

Answer 5

str()

Question 6

Cast as int

Answer 6

int()

Question 7

Cast as float

Answer 7

float()

Question 8

Cast as complex

Answer 8

complex()

Question 9

Addition

Answer 9

+

Question 10

Subtraction

Answer 10

-

Question 11

Multiplication

Answer 11

*

Question 12

Division

Answer 12

/

Question 13

Modulus

Answer 13

%

Question 14

Exponentiation

Answer 14

**

Question 15

Floor division

Answer 15

//

Question 16

and

Answer 16

Returns True if both statements are true

x < 5 and x < 10

Question 17

or

Answer 17

Returns True if one of the statements is true

x < 5 or x < 4

Question 18

not

Answer 18

Reverse the result, returns False if the result is true

not(x < 5 and x < 10)

Question 19

is

Answer 19

Returns true if both variables are the same object

x is y

Question 20

is not

Answer 20

Returns true if both variables are not the same object

x is not y

Question 21

List

Answer 21

is a collection which is ordered and changeable. Allows duplicate members.
A list is a collection which is ordered and changeable. In Python lists are written with square brackets.
thislist = [“apple”, “banana”, “cherry”]

Question 22

Tuple

Answer 22

is a collection which is ordered and unchangeable. Allows duplicate members.
A tuple is a collection which is ordered and unchangeable. In Python tuples are written with round brackets.
thistuple = (“apple”, “banana”, “cherry”)

Question 23

Set

Answer 23

is a collection which is unordered and unindexed. No duplicate members.
A set is a collection which is unordered and unindexed. In Python sets are written with curly brackets.
thisset = {“apple”, “banana”, “cherry”}

Question 24

Dictionary

Answer 24

is a collection which is unordered, changeable and indexed. No duplicate members.
A dictionary is a collection which is unordered, changeable and indexed. In Python dictionaries are written with curly brackets, and they have keys and values.
thisdict = {
“brand”: “Ford”,
“model”: “Mustang”,
“year”: 1964
}

Question 25

elif

Answer 25

``` The elif keyword is pythons way of saying "if the previous conditions were not true, then try this condition". a = 33 b = 33 if b > a: print("b is greater than a") elif a == b: print("a and b are equal") ```

Question 26

if

Answer 26

If you have only one statement to execute, you can put it on the same line as the if statement. if a > b: print("a is greater than b")

Question 27

while

Answer 27

``` With the while loop we can execute a set of statements as long as a condition is true. i = 1 while i < 6: print(i) i += 1 ```

Question 28

break

Answer 28

``` With the break statement we can stop the loop even if the while condition is true: i = 1 while i < 6: print(i) if i == 3: break i += 1 ```

Question 29

continue

Answer 29

``` With the continue statement we can stop the current iteration, and continue with the next: i = 0 while i < 6: i += 1 if i == 3: continue print(i) ```

Question 30

for loop

Answer 30

A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string). fruits = ["apple", "banana", "cherry"] for x in fruits: print(x)

Question 31

in

Answer 31

The in keyword has two purposes: The in keyword is used to check if a value is present in a sequence (list, range, string etc.). if "banana" in fruits: print("yes") The in keyword is also used to iterate through a sequence in a for loop: for x in fruits: print(x)

Question 32

def

Answer 32

``` a function is defined using the def keyword def my_function(): print("Hello from a function") ```

Question 33

lambda

Answer 33

Is used to create an anonymous function, can be used to create a function within a function lambda arguments : expression x = lambda a, b, c : a + b + c print(x(5, 6, 2))