sort tuple by first element python

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showing results for - "sort tuple by first element python"
Luca
18 Feb 2018
1a = [(5,8), (3,4), (9,7)]
2
3#sort by first element in tuple
4result = sorted(a, key=lambda tup: tup[0])
5
6#OR to do inplace sort:
7
8a.sorted(key = lambda tup: tup[0])
9
10# output
11[(3, 4), (5, 8), (9, 7)]
12
Raphael
31 Sep 2016
1# lists_of_tuples = [('item', 'price'), ('item', 'price'), ('item', 'price')]
2def sort_prices(list_of_tuples): #sort the list b*y the price of each tuple
3    list_of_tuples.sort(key=lambda x: x[1], reverse=True) #earse the "reverse" part to sort in small to big.
4    return list_of_tuples, print(list_of_tuples)
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