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Sorting a list of tuples by the last last elements of the tuple

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rasbt 2014-08-02 23:21:53 -04:00
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howtos_as_py_files/sort_list_of_tuples_by_ele.py
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# Sebastian Raschka 09/02/2014 # Sebastian Raschka 09/02/2014
# Sorting a list of tuples by the last last elements of the tuple # Sorting a list of tuples by the last last elements of the tuple
# Here, we make use of the "key" parameter of the in-built "sorted()" function
# (also available for the ".sort()" method), which let's us define a function
# that is called on every element that is to be sorted. In this case, our
# "key"-function is a simple lambda function that returns the last item
# from every tuple.
a_list = [(1,3,'c'), (2,3,'a'), (1,2,'b')] a_list = [(1,3,'c'), (2,3,'a'), (1,2,'b')]
sorted_list = sorted(a_list, key=lambda e: e[::-1]) sorted_list = sorted(a_list, key=lambda e: e[::-1])