Python |按任意键按升序对元组进行排序

给定一个元组，按元组中的任何键按升序对元组列表进行排序。

例子：

Input : tuple = [(2, 5), (1, 2), (4, 4), (2, 3)] 
            m = 0
Output : [(1, 2), (2, 3), (2, 5), (4, 4)]
Explanation: Sorted using the 0th index key.

Input :  [(23, 45, 20), (25, 44, 39), (89, 40, 23)]
         m = 2
Output : Sorted: [(23, 45, 20), (89, 40, 23), (25, 44, 39)] 
Explanation: Sorted using the 2nd index key

给定元组，我们需要根据任何给定的键对它们进行排序。这可以使用sorted()函数，在该函数中，我们使用key = last对它们进行排序，然后将last作为键索引存储，根据该索引我们必须对给定的元组进行排序。

以下是上述方法的Python实现：

# Python code to sort a list of tuples 
# according to given key.
  
# get the last key.
def last(n):
    return n[m]  
   
# function to sort the tuple   
def sort(tuples):
  
    # We pass used defined function last
    # as a parameter. 
    return sorted(tuples, key = last)
   
# driver code  
a = [(23, 45, 20), (25, 44, 39), (89, 40, 23)]
m = 2
print("Sorted:"),
print(sort(a))

输出：

Sorted: [(23, 45, 20), (89, 40, 23), (25, 44, 39)]