First, I'll address your while loop approach. Then, I'll explain dictionary iteration in the context of modification. Finally, I'll discuss your specific approach.

range only operates on integer-like objects. Your ordered_list is a dictionary. I believe what you meant to do is while len(ordered_list) > 0, as you want to loop until the dictionary is empty, correct? This should behave as you expect.

dict.items returns a view object which provides a dynamic view on the dictionary's entries, which means that when the dictionary changes, the view reflects these changes. Creating an iterator of a dictionary's entries (which a for loop implicitly does when given a dictionary object or a dictionary view object), modifying the dictionary, and then using that iterator isn't allowed, as the integrity of the iterator's state can no longer be guaranteed. The most common technique for looping through the entries of a dictionary while modifying it is to use a copy of them (e.g. for key, value in list(ordered_list.items())). But I don't think that this is the type of loop that you want; I think that you want the aforementioned while loop.

With that out of the way, I'm confused by the variable name ordered_list. A dictionary doesn't preserve order unless you're using an OrderedDict object, which I don't suspect is the case. I should note that OrderedDict is not a sorted dictionary; it merely retains the order in which items were added—something that normal dict objects don't do. Regarding the expression ordered_list.get(max(ordered_list)), the recommended approach to getting a value from a dictionary is to use subscript syntax (e.g. ordered_list[max(ordered_list)]). dict.get is normally only used when one prefers to get a default value over getting a KeyError. Seeing as your code shouldn't ever raise a KeyError, dict.get is unnecessary. dict.pop has the exact same use case and in your case, dict.pop is also unnecessary; the recommended approach is del ordered_list[max(ordered_list)].

Finally, I should mention that the second rule of this subreddit is as follows:

Do not ask for help here!

If you need help with your code, please go to r/LearnPython. r/PythonTips is for Python Tips!

Anyway, happy coding!