17/01/2024 - Recap

Question 1

how do you create a list

Answer 1

list = []

Question 2

what can a list contain?

Answer 2

mixed types

Question 3

How do you index and slice lists?

Answer 3

The same a strings

Question 4

Are lists mutable or immutable?

Answer 4

Lists are mutable

Question 5

Get the largest or smallest of two values

Answer 5

max(va1, val2) or min(val1, val2)

Question 6

Decimal part of a division

Answer 6

Modulus operator ‘%’ 1 % 2

Question 7

whole number part of a division

Answer 7

math floor operator math.floor(1/2) or 1//2

Question 8

What is black

Answer 8

A python formatter. Formats files in place

Question 9

What is poetry

Answer 9

A tool for dependency management and packaging

Question 10

What is poe

Answer 10

A task runner for poetry.

Question 11

What is jinga

Answer 11

A web template engine. Similar to django

Question 12

What is linting and name a linting tool

Answer 12

Flake8 is a linting tool. It checks your code base for errors, styling issues and complexity

Question 13

What is pep?

Answer 13

Python enhancement proposals

Question 14

What is pep8?

Answer 14

Pep8 is a style guide for python code

Question 15

What pytest?

Answer 15

A python testing framework

Question 16

What are the advantanges of python?

Answer 16

Easy to read and learn
Reduces maintenance costs
Easy Memory Management
Wide applicability
Large community
Easy integration with other programming languages
Asynchronous coding
Portable
Enterprise Application Integration

Question 17

What are the disadvantages of python?

Answer 17

Slow execution speed
Large memory consumption
Not ideal for mobile and game development
Addiction to easy coding
Weak database access
Design restrictions
More prone to runtime errors

Question 18

what type of language is python?

Answer 18

A dynamically typed language. Type-checking is performed at runtime. It’s also an interpreted language, which run slower than compiled code.

Question 19

What are python collections?

Question 20

What are iterators?

Question 21

What are list comprehension s?

Question 22

What is the name of the OOD principles?

Answer 22

SOLID

Question 23

What are the solid principles?

Answer 23

Single responsibility
Open-closed
Liskov Substitution
interface segregation
Dependency inversion

Question 24

What is dynamically typedvs statically typed?

Question 25

What does “hello”+”you” produce

Question 26

WHat happens with “hello”*4

Question 27

what happens with “hello” - “ello”?

Question 28

what types of comments are there?

Question 29

How is a multiline string pinted?

Question 30

How many Python keywards are there?

Question 32

What’s the difference between parameters and arguments?

Answer 32

Arguments are passed to functions and parameters are the variables in the function declaration between the parentheses

Question 33

What are fixtures?

Answer 33

Fixtures are functions that can be used to manage our apps states and dependencies. Often used with pytest

Question 34

What can you do with string slicing and give examples

Question 35

What is recursion

Question 36

What are factory methods?

Question 37

What does enumerate do and return?

Question 38

What are the common python data structures, and what are their methods?

Question 39

What is integer division?

Answer 39

Also known as floor division 3 // 2
Which equals 1

Question 40

What is cpython