CODEWITHSUNDEEP
python
Tibit
Tibit

Reputation: 181

Python Type Bug of List and Int?

I wanna read a list of number and sort them functionally, and here is the code:

user_input = [int(i) for i in input().split(' ')]
for i in user_input:
    if i == user_input[0]: list2 = [[i]]

    for j in list2:
        if user_input[i] - j[-1] == 1:
            j.append(user_input[i])
        else:
            list2.append(user_input[i])
print(list2)

#############################################
>>> 8 7 1 9 2 6 3 5 4

Traceback (most recent call last):
  File "test.py", line 6, in <module>
    if user_input[i] - j[-1] == 1:
TypeError: 'int' object is not subscriptable

I googled this problem and know that this problem happened when call int object with subscript, but when I run print(type(user_input), type(j)) and both the result are list. I wonder why the error happened. Can someone explain me please:)

Upvotes: 1

Views: 59

Answers (1)

Qianyi Zhang
Qianyi Zhang

Reputation: 184

its a bad idea to modify your list2 while iterate through them. your list2 starts as a list of list, then you starts to insert int to it, which causes the problem...

Upvotes: 5

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