一、Python3实现冒泡排序

```python
def bubble_sort(nums):
    for i in range(len(nums) - 1):  # 这个循环负责设置冒泡排序进行的次数
        for j in range(len(nums) - i - 1):  # j为列表下标
            if nums[j] > nums[j + 1]:
                nums[j], nums[j + 1] = nums[j + 1], nums[j]
    return nums
 
print(bubble_sort([2, 1, 9, 3, 6, 7, 4, 8]))
#out：[1, 2, 3, 4, 6, 7, 8, 9]

二、Python2实现冒泡排序

def bubble(bubbleList):
    listLength = len(bubbleList)
    while listLength > 0:
        for i in range(listLength - 1):
            if bubbleList[i] > bubbleList[i+1]:
                bubbleList[i], bubblelist[i+1] = bubblelist[i+1], bubblelist[i]
        listLength -= 1
    print bubbleList
 
if __name__ == '__main__':
    bubbleList = [3, 4, 1, 2, 5, 8, 0]
    bubble(bubbleList)

#out：[0, 1, 2, 3, 4, 5, 8]