Aug 21, 2011 · 2 A lambda function is useful if your sorting function takes a support argument, otherwise function name is enough. For example, if you want to sort list of string representation of datetime by …

The .sort () function stores the value of new list directly in the list variable; so answer for your third question would be NO. Also if you do this using sorted (list), then you can get it use because it is not …

Dec 29, 2009 · What arguments does Python sort () function have? Asked 16 years, 1 month ago Modified 7 years, 10 months ago Viewed 42k times

The function you pass in to key is given each of the items that are being sorted, and returns a "key" that Python can sort by. So, if you want to sort a list of strings by the reverse of the string, you could do this:

Apr 20, 2010 · This is a strange answer because you do the sorting in-place but then the reversing out-of-place. If there is another variable aliasing the original list, its value afterwards will not have the …

I stumbled on this thread to sort the list of lists by comparator function. For anyone who is new to python or coming from a c++ background. we want to replicate to use of the call-back function here like c++.

Mar 20, 2012 · You don't need a custom function for what you want to achieve, you first need to understand the methods you are using! sort() ing a list in python does it in place, that is, the return …

Python has two kinds of sorts: a sort method (or "member function") and a sort function. The sort method operates on the contents of the object named -- think of it as an action that the object is …

Python has supported the key= for .sort since 2.4, that is year 2004, it does the Schwartzian transform within the sorting code, in C; thus this method is useful only on Pythons 2.0-2.3. all of which are more …

Nov 20, 2010 · Here's one way: You basically re-write your sort function to take a list of sort functions, each sort function compares the attributes you want to test, on each sort test, you look and see if the …