Lists

Question 1

Lunghezza lista L

Answer 1

len(L)

Question 2

return element at an index in list L

Answer 2

L[i]

Question 3

return last element at an index in list L (2 modi)

Answer 3

L[ len(L) -1]

L[-1]

Question 4

return the index of a specific value xxx in list L

Answer 4

L.index(xxx)

Question 5

check if an element xxx is in the list L (boolean)

Answer 5

xxx in L

Question 6

iterate over a list L (get a list of all the values in all the indexes)

Answer 6

for i in L:

print (i)

Question 7

access nested element (in index 0, nested in a sublist placed at index 1 of list L)

Answer 7

L [1] [0]

Question 8

length of sublist placed at index 1 of list L

Answer 8

len( L [1] )

Question 9

subset list: create a list L2 containing a list with two elements extracted from index 2 of L

Answer 9

L2=L [2 ]

Question 10

ranges (of subset) to subset in list L2 from list L : starting to end, indefinite starting to end; starting to indefinite end

Answer 10

L2= L [x : y]
L2= L [... : y]
L2= L [x : ...]

Question 11

operazioni con elementi della lista L (somma di elementi in index 0 e 1)

Answer 11

xxx=L [0] + L[ 1]