understanding sorted key parameter - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: General Coding Help (https://python-forum.io/forum-8.html) +--- Thread: understanding sorted key parameter (/thread-11893.html) |
understanding sorted key parameter - amirt - Jul-30-2018 Can someone explain what is happening in the following sorting action: I have a list: L = ['breathe', '_', 'd', '+', 'a', 'bear']If i sort it with the key parameter checking if there is an item in the list: sorted(l,key=lambda x: x=="a")"a" is replaced as the last item in the sorted list: ['breathe', '_', 'd', '+', 'bear', 'a']What is happening? RE: understanding sorted key parameter - volcano63 - Jul-30-2018 Output of key function defines which element is "larger". x == 'a' produces False for each element but 'a' , and since False < Trueand default sort order is ascending, element 'a' becomes the "largest" element
RE: understanding sorted key parameter - amirt - Jul-30-2018 Great, many thanks! |