Print function printing out of order

Running python 3.11.2 in VSCode. I've got a simple function, and for whatever reason, it prints the last item in the fString first, on a different line, then prints the rest of the fString. Where the last item should be printed, None is printed instead.

The filtered_sortclasses list contains a bunch of python objects created by the SortClass class that I've made, I'll post that code now.

class SortClass:
    def __init__(self, item):
        self.common_name = item.name
        self.tier = item.tier
        self.min_price = item.price
        self.items = [item]

The SortClass class is actually called in the following code. Note that each item in the auctions list is its own class, which should not be relevant. If I need to post the code for the Itemize class, I can do so.

        sortclasses = []
        auctions = self.auctions
        
        while auctions:
            item = auctions.pop(0)
            matched = False
            
            for sc in sortclasses:
                if sc.common_name == item.name and sc.tier == item.tier:
                    matched = True
                    if item.price < sc.min_price:
                        sc.min_price = item.price
                    
                    sc.items.append(item)
                    break
            
            if not matched:
                sortclasses.append(SortClass(item))

Finally, the above print error occurs in the following code. Note that some of the SortClass objects were removed through a filtering process, but the classes themselves were not changed in any way.

        for sc in filtered_sortclasses:
            print(f'{sc.common_name}, {sc.tier}, {sc.min_price}, {print(sc.items)}')
            input('Continue')

Here's an example output:

[<__main__.Itemize object at 0x0000022490C3F390>,... <42 items hidden for your convenience>, <__main__.Itemize object at 0x000002248892B110>]
Auto Recombobulator, LEGENDARY, 10800000, None

Again, the list of items, the class objects, should be in the place of the NoneType at the end of the second output line, but instead get printed first, and are on a separate output line from everything else that is printed. This also happened when I tried replacing {print(sc.items)} with {print(len(sc.items))}. Any ideas on what could be causing this?

Your issue is right here in the print statement:

        for sc in filtered_sortclasses:
            print(f'{sc.common_name}, {sc.tier}, {sc.min_price}, {print(sc.items)}')
            input('Continue')

By accident instead of simply putting {sc.items}, you used another print function inside and f-string.

As the string gets compiled, the inner print function gets executed before the outer one and so separately prints a part of the output while the rest of the output comes later when the outer function is executed.

So simply remove the inner print() and all will be fine.