如何对优先布局的向量进行排序？

def compare_vectors(vector1, vector2):
    # 假设向量中的优先级属性为第一个元素
    priority1 = vector1[0]
    priority2 = vector2[0]
    
    if priority1 < priority2:
        return -1
    elif priority1 == priority2:
        return 0
    else:
        return 1

def sort_vectors(vectors):
    if len(vectors) <= 1:
        return vectors
    
    pivot = vectors[len(vectors) // 2]
    left = [vector for vector in vectors if compare_vectors(vector, pivot) < 0]
    middle = [vector for vector in vectors if compare_vectors(vector, pivot) == 0]
    right = [vector for vector in vectors if compare_vectors(vector, pivot) > 0]
    
    return sort_vectors(left) + middle + sort_vectors(right)

# 示例向量列表
vectors = [[3, 'a'], [1, 'b'], [2, 'c'], [1, 'd']]
sorted_vectors = sort_vectors(vectors)
print(sorted_vectors)