Submission not working because of preload issue

freeCodeCamp Support
1

I was doing the probability calculator project in python for scientific computing. I submitted it once and it passed all the test but I exited the page without saving the solution. Now, I can’t even pass the first test with the exact same code and the console shows preloading issues instead of actual test errors. This bug also only happens with this one specific project.

2

It would be very helpful if you posted your full code and a link to the project. Thanks

3 
from copy import copy
from random import randint

class Hat:
    
    def __init__(self, **kwargs):
        self.contents = [
            color for color, count in kwargs.items()
            for _ in range(count)
        ]

    def draw(self, num):
        if num > len(self.contents):
            draw_list = copy(self.contents)
            self.contents = []
            return draw_list

        draw_list = []
        for _ in range(num):
            rand = randint(0, len(self.contents) - 1)
            draw_list.append(self.contents.pop(rand))
        
        return draw_list


def experiment(hat, expected_balls, num_balls_drawn, num_experiments):

    success = 0
    for _ in range(num_experiments):
        success_flag = True
        backup = copy(hat.contents)
        results = hat.draw(num_balls_drawn)
        results = {b: results.count(b) for b in results}
        for ball, count in expected_balls.items():
            if results.get(ball, 0) < expected_balls.get(ball):
                success_flag = False
                break
            
        if success_flag:
            success += 1
        
        hat.contents = backup
    
    return success / num_experiments

Here is the code. Probability calculator project and here is the link to the project. These are the error messages that show up on the console.

The resource at “[https://www.freecodecamp.org/static/Lato-Regular-77ca2742388f408c3be7d0ec3e7dc392.woff”](https://www.freecodecamp.org/static/Lato-Regular-77ca2742388f408c3be7d0ec3e7dc392.woff%E2%80%9D) preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly.

I even tried logging out, pasting this solution outside of my account and it worked, but then when I sign back in, all the test fails.

4

that warning doesn’t matter at all, you can ignore it.

Run the tests with the console open, you will see the errors you need to worry about.
For example:

python-test-evaluator.ts:177 PythonError: Traceback (most recent call last):
  File "/lib/python311.zip/_pyodide/_base.py", line 468, in eval_code
    .run(globals, locals)
     ^^^^^^^^^^^^^^^^^^^^
  File "/lib/python311.zip/_pyodide/_base.py", line 310, in run
    coroutine = eval(self.code, globals, locals)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<exec>", line 3, in <module>
  File "/home/pyodide/test_module.py", line 8, in <module>
    probability_calculator.random.seed(95)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: module 'probability_calculator' has no attribute 'random'

uhhh, please do not change the imports, it looks like we need import random as is for the tests to work

1 Like
5

Oh hey it worked. Funny because my initial submissions went fine with from random import randint. Anyways, thanks a lot for the help.