Python: Typeerror: 'float' Object Is Not Subscriptable

def get_data(fp): data = [] for line in fp: line_list_ints = [int(number) for number in line.split()] data.append(line_list_ints) return data def calcu

Solution 1:

The issue is that you're modifying the data list while you're iterating over it, using data.insert in calculate_grades. This leads to the second iteration of the loop to see the grade value from the previous iteration as line, rather than the list of integers it is expecting.

I don't entirely understand what you're trying to do, so I can't suggest a solution directly. Perhaps you should make a separate list for the output, or modify line in place, rather than inserting a new item into data.

Solution 2:

The specific problem is because there are floats in data (eventually)

for line in data:
    total_points = sum(line[1:6])
    grade = get_grade(total_points)
    data.insert(0,total_points)
    data.insert(1,grade)

Because you insert it into your list, as 'grade'

The general problem is that you are modifying your list ('data') while you iterate over it, which is a bad idea - your logic will be hard to read at best, and easily loop forever.

Solution 3:

Uh, the issue is the part line[1:6] in line 10. The variable line is a float, so you can't take a sublist.