如何允许用户在 Python 中使用 while 循环输入列表列表

Question

Currently I have written code that allows the user to input a list:

length=int(input('Please enter how long you want your list: '))
list1=[ ]
p=0
while p<length:
  number=int(input('Please enter an integer: '))
  list1.append(number)
  p=p+1
print(list1)

This allows the user to choose how long they want their list to be, and then chose the integers they want in the list. The problem with this is that is does not allow the user to enter in nested lists. Ex. [2,4,[6,8],10]] I was wondering if here was a way for the user to input a list of list. My overall goal is to then flatten that inputed list of list using while loops.

Answer 1

A possible solution is this, however it is not very clear what you are trying to do:

running = True
arr = []
while running:
    inp = input("Press enter to input or Q to quit")
    if inp == "":
        while True:
            length=int(input('Please enter how long you want your list: '))
            list1=[]
            p=0
            while p<length:
              number=int(input('Please enter an integer: '))
              list1.append(number)
              p=p+1
            if p == length:
                arr.append(list1)
                break
    elif inp.lower() == "q":
        running = False
print(arr)