Quiz 1

Question 1

computer program

Answer 1

consists of instructions: input, process, and output

Question 2

python

Answer 2

• conceived in late 80s by guido van rossum
• named after british comedy group “monty python”
• most popular = python 3.x

Question 3

python interpreter

Answer 3

computer program that executes code written in the python programming language

Question 4

IDE

Answer 4

programmming development is usually done with an integrated development environment (IDE) (vs code = our ide)

Question 5

basic output

Answer 5

function print = string literal - letters/numbers/spaces/symbols (* or #) surrounded by pair of matching single or double quotes

Question 6

basic output - variables

Answer 6

comma is used to ouput multiple items in one statement (separates multiple items)

Question 7

basic output - variables

Answer 7

comma is used to ouput multiple items in one statement (separates multiple items)

Question 8

errors

Answer 8

SyntaxError - violating programming language’s rules
TypeError - operation uses incorrect types
NameError - uses variale that does not exist
ValueError - invalid value is used (giving letters to int())

Question 9

parts of a program

Answer 9

• library imports
• functions
• expressions
• statements
• variables

Question 10

parts of a program

Answer 10

• library imports
• functions
• expressions
• statements
• variables

Question 11

library imports

Answer 11

things other people have written (or you wrote outside of the script

Question 12

statement / expression

Answer 12

program instruction that tells python to do something / evaluates and returns a value

Question 13

function

Answer 13

block of reusable code you write yourself

Question 14

tokens

Answer 14

keywords: def, import, if else
operators: – + - * / // % =
delimiters: () [] {} , ; : #
literals: 123 7.6 true

Question 15

whitespace

Answer 15

• ignored in expressions and statements
• beginning of line = indentation
• python uses indenation/whitespace for syntax
• cannot appear in middle of an operator

Question 16

assignment statement

Answer 16

assigns a variable with a value using the operator =

Question 17

variable naming conventions

Answer 17

• start with a letter [pay attention to case sensitivity]
• dont start with a number, dont use a keyword

Question 18

data types

Answer 18

umbers, booleans, strings, and containers (lists, dictionaries, sets)

Question 19

numbers

Answer 19

int() = whole/counting numbers, positive/negatives (includes 0)
float() = numbers with decimal points

Question 20

booleans (bool)

Answer 20

true or false, often used to make decisions based on conditions

Question 21

strings

Answer 21

str() = sequence of characters which include letters, nmbers, symbols, spaces [whitespaces]
- enclosed by single/double quotes

Question 22

container

Answer 22

collection of data types - can contain data of more than one data type
- lists
- dictionaires
- sets

Question 23

lists

Answer 23

• collection of items
• can have diff data types inside
• enclosed by square brackets [ ]
• items are separated by commas ,

Question 24

dictionary

Answer 24

• dict = collection of key-value pairs
• keys and values can be data of any type
• enclosed by braces { }
• key : valu - separated by a colon

Question 25

sets

Answer 25

• collection of unique items
• usefule for operations like union, intersection and difference
• enclosed by braces {}

Question 26

check data type/type conversions

Answer 26

function type() / convert one data type to another - (converting integer to string)