Write a bubble sort in python

Sure, here's an example code for bubble sort in Python:

def bubble_sort(arr):
    n = len(arr)

    for i in range(n):
        # Last i elements are already in place
        for j in range(0, n-i-1):
            # Traverse the array from 0 to n-i-1
            # Swap if the element found is greater than the next element
            if arr[j] > arr[j+1]:
                arr[j], arr[j+1] = arr[j+1], arr[j]

    return arr

To use this function, just pass in a list of numbers you want to sort as the argument.