Looping to Create Nested Dictionary

[gngu2691]

Hello!

My code is supposed to read lines from a file that contains several attributes: assignment number, assignment name, grade, total, and weight. Each line of the file has this format.

My code reads the lines and turns it into a nested dictionary. Currently, the code seems to be looping and overwriting the key values of the inner dictionary.

Here is the file it's reading from:

1 assignment_1 85 100 0.25
2 test_1 90 100 0.25
3 exam_1 95 100 0.5

The code should return a nested dictionary with the assignment name as the key, and the inner dictionary having the keys "number", "grade", "total", and "weight" for each line.
The correct output:

Output:
{'assignment_1': {'total': 100, 'number': 1, 'grade': 85, 'weight': 0.25}, 'test_1': {'total': 100, 'number': 2, 'grade': 90, 'weight': 0.25}, 'exam_1': {'total': 100, 'number': 3, 'grade': 95, 'weight': 0.5}} 

Here is my code:

def reader(filename):
    file_reader = open(filename)
    results = []
    innerdict = {}
    outerdict = {}

    for line in file_reader:
        parts = line.split(" ")
        line_tuple = (int(parts[0]), parts[1], int(parts[2]), int(parts[3]), float(parts[4]))
        key = line_tuple[1]
        outerdict[key] = innerdict 

        innerdict["number"] = line_tuple[0]
        innerdict["grade"] = line_tuple[2]
        innerdict["total"] = line_tuple[3]
        innerdict["weight"] = line_tuple[4]
        
         

    return outerdict

It returns this output:

Output:
{'assignment_1': {'number': 3, 'weight': 0.5, 'total': 100, 'grade': 95}, 'test_1': {'number': 3, 'weight': 0.5, 'total': 100, 'grade': 95}, 'exam_1': {'number': 3, 'weight': 0.5, 'total': 100, 'grade': 95}}

I believe I am somewhat close, I just do not know how to preserve the values of the inner dictionary once it loops over a line.

Thank you for your help! I've been trying to figure this out for a few days and just wish to understand.