Reminders/important bits

Question 1

How do you calc 0o142?

Answer 1

142 = length 3
therefore 8^2 8^1 8^0

0o142 = 1* 8^2 + 4* 8^1 + 2* 8^0

Question 2

How do you calc 0x142?

Answer 2

142 = length 3
therefore 16^2 16^116^0

0x142 = 116^2 + 416^1 + 2*16^0

Question 3

How do you calc binary 011?

Answer 3

011 = length 3
therefore 2^2 2^1 2^0

011 = 0* 2^2 + 1* 2^1 + 1*2^0

Question 4

Which is always bigger 0x number or 0o number ?

Answer 4

0x

Question 5

Type([5]) …..

Answer 5

list

Question 6

Type({5}) …..

Answer 6

set

Question 7

Type((5)) …..

Answer 7

int

Question 8

Type((5,)) …..

Answer 8

tuple

Question 9

Type((‘5’)) …..

Answer 9

str

Question 10

In ASCII is a and A odd or even?

Answer 10

Odd

Question 11

What is the order of ASCII?

Answer 11

Digits (0-9) Capitals (A-Z) lowercase (a-z)

Question 12

What is the function to change a character/number to ASCII?

Answer 12

ord()

Question 13

What is the function to change a ASCII number to normal char/num?

Answer 13

chr()

Question 14

What to remember about insert()?

Answer 14

insert( position , what_to_insert )

Question 15

How is power ** binded?

Answer 15

right to left

Question 16

What does 0%n equal?

Answer 16

0

Question 17

What does n%0 equal?

Answer 17

Zero Division Error

Question 18

What does [::-1] do?

Answer 18

it reverses the string

[ start : end : step ]

start default = 0
end default = end of string

Question 19

What is len(‘\ \ \ \ ‘)?

Answer 19

2

as \ escape character

Question 20

How is continue different to pass?

Answer 20

Continue forces the code to ignore the rest of the code in the current iteration (after continue) and move onto the next iteration in the for loop

Pass does nothing

Question 21

What does this do?
{key:value for value, key in dic.items()}

Answer 21

swaps values and keys in dic

Question 22

To handle exceptions, Python has four major defined components…….

Answer 22

try
except
else
finally