I was doing a program in Python a little puzzle where the user only have to order the numbers, whatever in the program I create a list of lists. The main list it's empty, I create a method where the program fill the list with another 4 lists using a for with an enumerate and when the account comes every 4 times save the secondary list inside the main list and here comes where need someone explain me or if it's a bug.
I clean the secondary list but the main list cleaning to and I don't know what's going on only when I create a new list works but with the other method doesn't.
class Puzzle:
def __init__(self, array):
self.array = array
self.account = 0
def fillPuzzle(self):
"""Method that fill the list of lists"""
# account = self.account
newlist = list()
for account, number in enumerate(range(1,17),start=1):
number = str(number) if number != 16 else 'X'
newlist.append(number)
if account in (4,8,12,16):
self.array.append(newlist)
newlist.clear()# here it's the problem, if i use newlist = list() works
return self.array
def showArray(self):
print(f"\nLista : {self.array}")
emptylist = list()
newpuzzle = Puzzle(emptylist)
#
newpuzzle.showArray()
newpuzzle.fillPuzzle()
newpuzzle.showArray()
