👀 Views: 1 💬 Answers: 1 📅 Created: 2025-06-03

python algorithms sorting Python

I've been struggling with this for a few days now and could really use some help. I'm converting an old project and I'm updating my dependencies and After trying multiple solutions online, I still can't figure this out... I recently switched to I'm implementing the QuickSort algorithm in Python to handle sorting of large datasets. While running the algorithm on a dataset with over a million integers, I encountered a `RecursionError: maximum recursion depth exceeded in comparison`. I've set up the QuickSort function as follows: ```python def quicksort(arr): if len(arr) <= 1: return arr pivot = arr[len(arr) // 2] left = [x for x in arr if x < pivot] middle = [x for x in arr if x == pivot] right = [x for x in arr if x > pivot] return quicksort(left) + middle + quicksort(right) ``` I know that Python has a default recursion limit of 1000, and I attempted to increase it using `sys.setrecursionlimit(1500)`, but it doesn't seem to resolve the scenario, especially with larger datasets where the recursion depth increases significantly. To mitigate this, I considered switching to an iterative approach or implementing a hybrid algorithm that uses a stack to handle partitioning. However, I’m unsure how to effectively manage the stack and what changes I might need to make to the partitioning logic to ensure it remains efficient and effective. Additionally, I am currently using Python 3.10 and the performance seems to drop significantly for larger inputs, which could be problematic for real-time applications. Could anyone provide guidance on how to tackle the recursion depth scenario while still using QuickSort, or suggest a more efficient way to implement QuickSort for large datasets without hitting the recursion limit? Any insights or examples of iterative implementations would be greatly appreciated! This issue appeared after updating to Python 3.9. I'd really appreciate any guidance on this. The stack includes Python and several other technologies. Is this even possible? This is for a CLI tool running on Debian. Is there a simpler solution I'm overlooking? For context: I'm using Python on Windows 11. Thanks for any help you can provide! I'd be grateful for any help. I'm working in a Ubuntu 20.04 environment. Thanks for your help in advance!